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Experience the power and versatility of MATLAB today and unlock new possibilities in data analysis and computational modeling!"
A transformer is a static electrical device that transfers electrical energy between two or more circuits. A varying current in one coil of the transformer produces a varying magnetic flux, which, in turn, induces a varying electromotive force across a second coil wound around the same core. Electrical energy can be transferred between the two coils, without a metallic connection between the two circuits. Faraday's law of induction discovered in 1831 described the induced voltage effect in any coil due to changing magnetic flux encircled by the coil
To understand the basic working principle of a transformer.
To obtain the equivalent circuit parameters from Open circuit and Short circuit tests, and to estimate efficiency & regulation at various loads.
1.SINGLE PHASE HALF WAVE CONTROLLED CONVERTER WITH RESISTIVEINDUCTIVE LOAD
2 SINGLE PHASE FULLY CONTROLLED CONVERTER WITH RESISTIVEINDUCTIVE LOAD
3 SPEED CONTROL OF 3-PHASE SLIP RING (WOUND ROTOR) INDUCTION MOTOR
4 THYRISTORISED DRIVE FOR DC MOTOR WITH CLOSED LOOP CONTROL
5 THYRISTORISED DRIVE FOR PMDC MOTOR WITH SPEED MEASUREMENT & CLOSED LOOP CONTROL
6 SPEED MEASUREMENT OF PMDC MOTOR WITH CLOSED LOOP CONTROL
7 IGBT USING SINGLE 4 QUADRANT CHOPPER DRIVE FOR PMDC MOTOR WITH SPEED MEASUREMENT AND CLOSED LOOP AND CONTROL
8 SINGLE PHASE CYCLO CONVERTER BASED AC INDUCTION MOTOR CONTROLLER
9 THREE PHASE INPUT THYRISTORISED DRIVE 3HP DC MOTOR WITH CLOSED LOOP CONTROL
10 THREE PHASE INPUT IGBT DRIVE FOR 4 QUADRANT CHOPPER OF 3HP DC MOTOR WITH CLOSED LOOP CONTROL
Ekeeda Provides Online Video Lectures, Tutorials & Engineering Courses Available for Top-Tier Universities in India. Lectures from Highly Trained & Experienced Faculty!
A transformer is a static electrical device that transfers electrical energy between two or more circuits. A varying current in one coil of the transformer produces a varying magnetic flux, which, in turn, induces a varying electromotive force across a second coil wound around the same core. Electrical energy can be transferred between the two coils, without a metallic connection between the two circuits. Faraday's law of induction discovered in 1831 described the induced voltage effect in any coil due to changing magnetic flux encircled by the coil
To understand the basic working principle of a transformer.
To obtain the equivalent circuit parameters from Open circuit and Short circuit tests, and to estimate efficiency & regulation at various loads.
1.SINGLE PHASE HALF WAVE CONTROLLED CONVERTER WITH RESISTIVEINDUCTIVE LOAD
2 SINGLE PHASE FULLY CONTROLLED CONVERTER WITH RESISTIVEINDUCTIVE LOAD
3 SPEED CONTROL OF 3-PHASE SLIP RING (WOUND ROTOR) INDUCTION MOTOR
4 THYRISTORISED DRIVE FOR DC MOTOR WITH CLOSED LOOP CONTROL
5 THYRISTORISED DRIVE FOR PMDC MOTOR WITH SPEED MEASUREMENT & CLOSED LOOP CONTROL
6 SPEED MEASUREMENT OF PMDC MOTOR WITH CLOSED LOOP CONTROL
7 IGBT USING SINGLE 4 QUADRANT CHOPPER DRIVE FOR PMDC MOTOR WITH SPEED MEASUREMENT AND CLOSED LOOP AND CONTROL
8 SINGLE PHASE CYCLO CONVERTER BASED AC INDUCTION MOTOR CONTROLLER
9 THREE PHASE INPUT THYRISTORISED DRIVE 3HP DC MOTOR WITH CLOSED LOOP CONTROL
10 THREE PHASE INPUT IGBT DRIVE FOR 4 QUADRANT CHOPPER OF 3HP DC MOTOR WITH CLOSED LOOP CONTROL
Ekeeda Provides Online Video Lectures, Tutorials & Engineering Courses Available for Top-Tier Universities in India. Lectures from Highly Trained & Experienced Faculty!
Ekeeda - First Year Enginering - Basic Electrical EngineeringEkeedaPvtLtd
The First Year engineering course seems more like an extension of the subjects that students have learned in their 12th class. Subjects like Engineering Physics, Chemistry, and Mathematics, are incorporated into the curriculum. Students will learn about some of the engineering subjects in this first year, and these subjects are similar to all the branches. Everyone will learn some basics related to the other streams in their first year. Ekeeda offers Online First Year Engineering Courses for all the Subjects as per the Syllabus.
International Journal of Engineering Research and DevelopmentIJERD Editor
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
Analysis of Multilevel Inverter using Bipolar and Unipolar Switching Schemes ...ijsrd.com
Cascaded H-bridge Multilevel Inverter (MLI) is most efficient topology for medium and high voltage DC-AC conversion, having less output harmonics and less commutation losses. Disadvantages are their complexity, more number of power devices, passive components and a complex control circuitry. Here a Cascaded Hybrid Multilevel Inverter is used to produce a three phase 9-level output voltages. Now a day inverter is also know as a DC-AC converter, is one of the most popular part of electrical device. This proposed inverter widely used in industries application such as speed control of induction motor. This thesis focus on three phase 9-level bipolar and unipolar switching inverter with characteristics like output voltage boosting ability and also we discus about the bipolar and unipolar switching scheme along with capacitor voltage control. The modified topology uses Cascaded H-bridge (CHB) with bidirectional and unidirectional switches producing boost up output voltage. Here a hybrid Pulse Width Modulation (PWM) technique is applied to control the power devices. This modulation technique uses a sine wave and a repeating wave, these waves are combined and a complete reference wave is generated. There is comparative study between CHB and modified topology between number of power devices used and Total Harmonic Distortions (THD). THD of modified topology is reduced and analyzed by FFT window. The results are observed by MATLAB/SIMULINK software.
International Journal of Engineering Research and Development (IJERD)IJERD Editor
journal publishing, how to publish research paper, Call For research paper, international journal, publishing a paper, IJERD, journal of science and technology, how to get a research paper published, publishing a paper, publishing of journal, publishing of research paper, reserach and review articles, IJERD Journal, How to publish your research paper, publish research paper, open access engineering journal, Engineering journal, Mathemetics journal, Physics journal, Chemistry journal, Computer Engineering, Computer Science journal, how to submit your paper, peer reviw journal, indexed journal, reserach and review articles, engineering journal, www.ijerd.com, research journals,
yahoo journals, bing journals, International Journal of Engineering Research and Development, google journals, hard copy of journal
An A.C. device used to change high voltage low current A.C. into low voltage high current A.C. and vice-versa without changing the frequency
In brief,
1. Transfers electric power from one circuit to another
2. It does so without a change of frequency
3. It accomplishes this by electromagnetic induction
4. Where the two electric circuits are in mutual inductive influence of each other.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
Analysis and hardware implementation of five level cascaded H Bridge inverterIJERA Editor
The cascaded multilevel inverter (CMLI) has gained much attention in recent years due to its advantages in high
voltage and high power with low harmonics applications. A standard cascaded multilevel inverter requires n DC
sources for 2n+1levels at the output, where n is the number of inverter stages. This paper presents a topology to
control cascaded multilevel inverter that is implemented with multiple DC sources to get 2"+1_ 1 levels. Without
using Pulse Width Modulation (PWM) technique, the firing circuit can be implemented using Microcontroller
which greatly reduces the Total Harmonic Distortion (THD) and switching losses. To develop the model of a
cascaded hybrid multilevel inverter, a simulation is done based on MATLAB/SIMULINK software and
hardware implementation was also done. Their integration makes the design and analysis of a hybrid multilevel
inverter more complete and detailed.
International Journal of Engineering Research and Applications (IJERA) aims to cover the latest outstanding developments in the field of all Engineering Technologies & science.
International Journal of Engineering Research and Applications (IJERA) is a team of researchers not publication services or private publications running the journals for monetary benefits, we are association of scientists and academia who focus only on supporting authors who want to publish their work. The articles published in our journal can be accessed online, all the articles will be archived for real time access.
Our journal system primarily aims to bring out the research talent and the works done by sciaentists, academia, engineers, practitioners, scholars, post graduate students of engineering and science. This journal aims to cover the scientific research in a broader sense and not publishing a niche area of research facilitating researchers from various verticals to publish their papers. It is also aimed to provide a platform for the researchers to publish in a shorter of time, enabling them to continue further All articles published are freely available to scientific researchers in the Government agencies,educators and the general public. We are taking serious efforts to promote our journal across the globe in various ways, we are sure that our journal will act as a scientific platform for all researchers to publish their works online.
Time Management by Akshit Jain ctld .pptAkshit Jain
"Mastering Time: A Comprehensive Guide to Effective Time Management" by Akshit Jain is a thorough exploration of the principles, strategies, and techniques essential for managing time efficiently and achieving personal and professional goals. The guide begins by emphasizing the importance of time management and encourages readers to identify their specific challenges in this area. It then provides practical advice on setting clear goals, prioritizing tasks, and developing a personalized time management plan. Readers learn how to overcome procrastination, manage distractions, and maintain motivation, as well as how to adapt time management skills to different situations and cultivate work-life balance. Throughout the book, Akshit Jain offers insights into common pitfalls and provides guidance on monitoring progress and making adjustments. Ultimately, "Mastering Time" equips readers with the knowledge and tools they need to take control of their time, reduce stress, and optimize their productivity and well-being.
7. IPR.pptx By- Akshit Jain Human ValuesAkshit Jain
User
Morals, Values and Ethics By Akshit Jain.ppt description
ChatGPT
As an AI language model, I don't have access to specific files or documents such as "Morals, Values and Ethics By Akshit Jain.ppt". However, I can help you outline a description for such a presentation based on the title.
Title: Morals, Values, and Ethics
Description:
The presentation "Morals, Values, and Ethics" by Akshit Jain delves into the fundamental concepts that underpin human behavior and decision-making. Through a series of slides, Jain explores the intricate relationship between morals, values, and ethics, shedding light on their significance in various aspects of life, including personal development, societal norms, and professional conduct.
Key topics covered in the presentation may include:
Introduction to Morals, Values, and Ethics:
Defining and distinguishing between morals, values, and ethics.
Exploring their origins and evolution across different cultures and societies.
The Role of Morals, Values, and Ethics in Society:
Examining how morals, values, and ethics shape social norms and collective behavior.
Discussing their impact on interpersonal relationships, community cohesion, and societal progress.
Personal Morals and Values:
Reflecting on individual beliefs, principles, and moral compass.
Analyzing the influence of upbringing, culture, and personal experiences on shaping values and ethical standards.
Ethical Decision-Making:
Understanding the process of ethical decision-making in personal and professional contexts.
Exploring ethical dilemmas and strategies for resolving conflicts between competing values.
Application in Professional Settings:
Discussing the importance of ethics in various professions, such as business, healthcare, and law.
Highlighting ethical frameworks and codes of conduct guiding professional behavior and decision-making.
Contemporary Ethical Issues:
Identifying and analyzing current ethical challenges and controversies in society.
Encouraging critical thinking and ethical reasoning in addressing complex moral dilemmas.
Conclusion and Reflection:
Summarizing key insights and takeaways from the presentation.
Encouraging individuals to reflect on their own morals, values, and ethical beliefs, and consider their implications in their personal and professional lives.
Through this presentation, Akshit Jain aims to stimulate thought-provoking discussions and promote a deeper understanding of the intricate interplay between morals, values, and ethics in shaping human behavior and society.
User
2. Ethical Issues at Workplace.ppt description
ChatGPT
Title: Ethical Issues at the Workplace
Description:
The presentation "Ethical Issues at the Workplace" explores the various ethical dilemmas and challenges that individuals encounter in professional settings. Through a comprehensive examination of real-world scenarios and case studies, this presentation sheds light on the complexities of ethical decision-making and the importance of ma
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Ekeeda - First Year Enginering - Basic Electrical EngineeringEkeedaPvtLtd
The First Year engineering course seems more like an extension of the subjects that students have learned in their 12th class. Subjects like Engineering Physics, Chemistry, and Mathematics, are incorporated into the curriculum. Students will learn about some of the engineering subjects in this first year, and these subjects are similar to all the branches. Everyone will learn some basics related to the other streams in their first year. Ekeeda offers Online First Year Engineering Courses for all the Subjects as per the Syllabus.
International Journal of Engineering Research and DevelopmentIJERD Editor
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
Analysis of Multilevel Inverter using Bipolar and Unipolar Switching Schemes ...ijsrd.com
Cascaded H-bridge Multilevel Inverter (MLI) is most efficient topology for medium and high voltage DC-AC conversion, having less output harmonics and less commutation losses. Disadvantages are their complexity, more number of power devices, passive components and a complex control circuitry. Here a Cascaded Hybrid Multilevel Inverter is used to produce a three phase 9-level output voltages. Now a day inverter is also know as a DC-AC converter, is one of the most popular part of electrical device. This proposed inverter widely used in industries application such as speed control of induction motor. This thesis focus on three phase 9-level bipolar and unipolar switching inverter with characteristics like output voltage boosting ability and also we discus about the bipolar and unipolar switching scheme along with capacitor voltage control. The modified topology uses Cascaded H-bridge (CHB) with bidirectional and unidirectional switches producing boost up output voltage. Here a hybrid Pulse Width Modulation (PWM) technique is applied to control the power devices. This modulation technique uses a sine wave and a repeating wave, these waves are combined and a complete reference wave is generated. There is comparative study between CHB and modified topology between number of power devices used and Total Harmonic Distortions (THD). THD of modified topology is reduced and analyzed by FFT window. The results are observed by MATLAB/SIMULINK software.
International Journal of Engineering Research and Development (IJERD)IJERD Editor
journal publishing, how to publish research paper, Call For research paper, international journal, publishing a paper, IJERD, journal of science and technology, how to get a research paper published, publishing a paper, publishing of journal, publishing of research paper, reserach and review articles, IJERD Journal, How to publish your research paper, publish research paper, open access engineering journal, Engineering journal, Mathemetics journal, Physics journal, Chemistry journal, Computer Engineering, Computer Science journal, how to submit your paper, peer reviw journal, indexed journal, reserach and review articles, engineering journal, www.ijerd.com, research journals,
yahoo journals, bing journals, International Journal of Engineering Research and Development, google journals, hard copy of journal
An A.C. device used to change high voltage low current A.C. into low voltage high current A.C. and vice-versa without changing the frequency
In brief,
1. Transfers electric power from one circuit to another
2. It does so without a change of frequency
3. It accomplishes this by electromagnetic induction
4. Where the two electric circuits are in mutual inductive influence of each other.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
Analysis and hardware implementation of five level cascaded H Bridge inverterIJERA Editor
The cascaded multilevel inverter (CMLI) has gained much attention in recent years due to its advantages in high
voltage and high power with low harmonics applications. A standard cascaded multilevel inverter requires n DC
sources for 2n+1levels at the output, where n is the number of inverter stages. This paper presents a topology to
control cascaded multilevel inverter that is implemented with multiple DC sources to get 2"+1_ 1 levels. Without
using Pulse Width Modulation (PWM) technique, the firing circuit can be implemented using Microcontroller
which greatly reduces the Total Harmonic Distortion (THD) and switching losses. To develop the model of a
cascaded hybrid multilevel inverter, a simulation is done based on MATLAB/SIMULINK software and
hardware implementation was also done. Their integration makes the design and analysis of a hybrid multilevel
inverter more complete and detailed.
International Journal of Engineering Research and Applications (IJERA) aims to cover the latest outstanding developments in the field of all Engineering Technologies & science.
International Journal of Engineering Research and Applications (IJERA) is a team of researchers not publication services or private publications running the journals for monetary benefits, we are association of scientists and academia who focus only on supporting authors who want to publish their work. The articles published in our journal can be accessed online, all the articles will be archived for real time access.
Our journal system primarily aims to bring out the research talent and the works done by sciaentists, academia, engineers, practitioners, scholars, post graduate students of engineering and science. This journal aims to cover the scientific research in a broader sense and not publishing a niche area of research facilitating researchers from various verticals to publish their papers. It is also aimed to provide a platform for the researchers to publish in a shorter of time, enabling them to continue further All articles published are freely available to scientific researchers in the Government agencies,educators and the general public. We are taking serious efforts to promote our journal across the globe in various ways, we are sure that our journal will act as a scientific platform for all researchers to publish their works online.
Similar to The MATLAB File by Akshit Jain .pdf on . (20)
Time Management by Akshit Jain ctld .pptAkshit Jain
"Mastering Time: A Comprehensive Guide to Effective Time Management" by Akshit Jain is a thorough exploration of the principles, strategies, and techniques essential for managing time efficiently and achieving personal and professional goals. The guide begins by emphasizing the importance of time management and encourages readers to identify their specific challenges in this area. It then provides practical advice on setting clear goals, prioritizing tasks, and developing a personalized time management plan. Readers learn how to overcome procrastination, manage distractions, and maintain motivation, as well as how to adapt time management skills to different situations and cultivate work-life balance. Throughout the book, Akshit Jain offers insights into common pitfalls and provides guidance on monitoring progress and making adjustments. Ultimately, "Mastering Time" equips readers with the knowledge and tools they need to take control of their time, reduce stress, and optimize their productivity and well-being.
7. IPR.pptx By- Akshit Jain Human ValuesAkshit Jain
User
Morals, Values and Ethics By Akshit Jain.ppt description
ChatGPT
As an AI language model, I don't have access to specific files or documents such as "Morals, Values and Ethics By Akshit Jain.ppt". However, I can help you outline a description for such a presentation based on the title.
Title: Morals, Values, and Ethics
Description:
The presentation "Morals, Values, and Ethics" by Akshit Jain delves into the fundamental concepts that underpin human behavior and decision-making. Through a series of slides, Jain explores the intricate relationship between morals, values, and ethics, shedding light on their significance in various aspects of life, including personal development, societal norms, and professional conduct.
Key topics covered in the presentation may include:
Introduction to Morals, Values, and Ethics:
Defining and distinguishing between morals, values, and ethics.
Exploring their origins and evolution across different cultures and societies.
The Role of Morals, Values, and Ethics in Society:
Examining how morals, values, and ethics shape social norms and collective behavior.
Discussing their impact on interpersonal relationships, community cohesion, and societal progress.
Personal Morals and Values:
Reflecting on individual beliefs, principles, and moral compass.
Analyzing the influence of upbringing, culture, and personal experiences on shaping values and ethical standards.
Ethical Decision-Making:
Understanding the process of ethical decision-making in personal and professional contexts.
Exploring ethical dilemmas and strategies for resolving conflicts between competing values.
Application in Professional Settings:
Discussing the importance of ethics in various professions, such as business, healthcare, and law.
Highlighting ethical frameworks and codes of conduct guiding professional behavior and decision-making.
Contemporary Ethical Issues:
Identifying and analyzing current ethical challenges and controversies in society.
Encouraging critical thinking and ethical reasoning in addressing complex moral dilemmas.
Conclusion and Reflection:
Summarizing key insights and takeaways from the presentation.
Encouraging individuals to reflect on their own morals, values, and ethical beliefs, and consider their implications in their personal and professional lives.
Through this presentation, Akshit Jain aims to stimulate thought-provoking discussions and promote a deeper understanding of the intricate interplay between morals, values, and ethics in shaping human behavior and society.
User
2. Ethical Issues at Workplace.ppt description
ChatGPT
Title: Ethical Issues at the Workplace
Description:
The presentation "Ethical Issues at the Workplace" explores the various ethical dilemmas and challenges that individuals encounter in professional settings. Through a comprehensive examination of real-world scenarios and case studies, this presentation sheds light on the complexities of ethical decision-making and the importance of ma
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The presentation "Ethical Issues at the Workplace" explores the various ethical dilemmas and challenges that individuals encounter in professional settings. Through a comprehensive examination of real-world scenarios and case studies, this presentation sheds light on the complexities of ethical decision-making and the importance of maintaining integrity and ethical standards in the workplace.
1.Morals, Values and Ethics By Akshit Jain.pptAkshit Jain
The presentation "Morals, Values, and Ethics" by Akshit Jain delves into the fundamental concepts that underpin human behavior and decision-making. Through a series of slides, Jain explores the intricate relationship between morals, values, and ethics, shedding light on their significance in various aspects of life, including personal development, societal norms, and professional conduct.
220 kv Sub- Station By Akshit Jain Majhola Moradabad .docxAkshit Jain
industrial traing report on 220 kv sub station majhola Moradabad
With the help of this you will better understating about the power stations , its distribution and how are they working with its higher efficiency.
1. 8-Bit Microprocessor:
The 8085 is an 8-bit microprocessor, which means it can process data in 8-bit chunks at a time. This restricts the processor to working with values from 0 to 255.
2. Architecture:
The 8085 microprocessor has a simple architecture consisting of various registers, a control unit, and an arithmetic logic unit (ALU).
It has 74 instructions and 246 opcodes.
3. Registers:
Accumulator (A): Used for performing arithmetic and logic operations.
General-Purpose Registers (B, C, D, E, H, L): Used for various data manipulation tasks.
Stack Pointer (SP): Used to manage the stack.
Program Counter (PC): Keeps track of the address of the next instruction to be executed.
4. Memory:
The 8085 microprocessor can address up to 64KB of memory, which includes RAM (Random Access Memory) and ROM (Read-Only Memory).
Memory is organized into 16-bit addresses.
5. Data and Address Bus:
The 8085 has an 8-bit data bus and a 16-bit address bus, allowing it to communicate with external memory and peripheral devices.7. Instruction Set:
The 8085 uses a Reduced Instruction Set Computer (RISC) architecture with a relatively small instruction set. Instructions are categorized into data transfer, arithmetic and logical operations, control flow, and input/output operations.
8. Addressing Modes:
The 8085 supports various addressing modes, such as direct addressing, immediate addressing, register indirect addressing, and more, allowing for flexible data manipulation.
9. Interrupts:
The 8085 microprocessor features five interrupt lines, which are used for handling external interrupts. It supports both maskable and non-maskable interrupts.
10. Flags:7. Instruction Set:
The 8085 uses a Reduced Instruction Set Computer (RISC) architecture with a relatively small instruction set. Instructions are categorized into data transfer, arithmetic and logical operations, control flow, and input/output operations.
8. Addressing Modes:
The 8085 supports various addressing modes, such as direct addressing, immediate addressing, register indirect addressing, and more, allowing for flexible data manipulation.
9. Interrupts:
The 8085 microprocessor features five interrupt lines, which are used for handling external interrupts. It supports both maskable and non-maskable interrupts.
10. Flags:7. Instruction Set:
The 8085 uses a Reduced Instruction Set Computer (RISC) architecture with a relatively small instruction set. Instructions are categorized into data transfer, arithmetic and logical operations, control flow, and input/output operations.
8. Addressing Modes:
The 8085 supports various addressing modes, such as direct addressing, immediate addressing, register indirect addressing, and more, allowing for flexible data manipulation.
9. Interrupts:
The 8085 microprocessor features five interrupt lines, which are used for handling external interrupts. It supports both maskable and non-maskable interrupts.
10. Flags:7. Instruction Set:
The 8085 uses a Reduced Instruction
A 220 kV substation serves as an intermediate point between the power generation station, which typically generates electricity at much higher voltages, and the end-users. Its primary role is to step down the voltage, making it safer for local distribution.
2. Voltage Transformation:. Integration with Renewable Energy:
As the energy landscape evolves, 220 kV substations are adapting to integrate renewable energy sources, such as wind and solar power, into the grid. This requires advanced control systems to manage variable generation. Integration with Renewable Energy:
As the energy landscape evolves, 220 kV substations are adapting to integrate renewable energy sources, such as wind and solar power, into the grid. This requires advanced control systems to manage variable generation.. Integration with Renewable Energy:
As the energy landscape evolves, 220 kV substations are adapting to integrate renewable energy sources, such as wind and solar power, into the grid. This requires advanced control systems to manage variable generation.. Integration with Renewable Energy:
As the energy landscape evolves, 220 kV substations are adapting to integrate renewable energy sources, such as wind and solar power, into the grid. This requires advanced control systems to manage variable generation.. Integration with Renewable Energy:
As the energy landscape evolves, 220 kV substations are adapting to integrate renewable energy sources, such as wind and solar power, into the grid. This requires advanced control systems to manage variable generation.. Integration with Renewable Energy:
As the energy landscape evolves, 220 kV substations are adapting to integrate renewable energy sources, such as wind and solar power, into the grid. This requires advanced control systems to manage variable generation.. Integration with Renewable Energy:
As the energy landscape evolves, 220 kV substations are adapting to integrate renewable energy sources, such as wind and solar power, into the grid. This requires advanced control systems to manage variable generation.
Online blood donation management system project.pdfKamal Acharya
Blood Donation Management System is a web database application that enables the public to make online session reservation, to view nationwide blood donation events online and at the same time provides centralized donor and blood stock database. This application is developed
by using ASP.NET technology from Visual Studio with the MySQL 5.0 as the database management system. The methodology used to develop this system as a whole is Object Oriented Analysis and Design; whilst, the database for BDMS is developed by following the steps in Database Life Cycle. The targeted users for this application are the public who is eligible to donate blood ,'system moderator, administrator from National Blood Center and the staffs who are working in the blood banks of the participating hospitals. The main objective of the development of this application is to overcome the problems that exist in the current system, which are the lack of facilities for online session reservation and online advertising on the nationwide blood donation events, and also decentralized donor and blood stock database. Besides, extra features in the system such as security protection by using password, generating reports, reminders of blood stock shortage and workflow tracking can even enhance the efficiency of the management in the blood banks. The final result of this project is the development of web database application, which is the BDMS.
Event Management System Vb Net Project Report.pdfKamal Acharya
In present era, the scopes of information technology growing with a very fast .We do not see any are untouched from this industry. The scope of information technology has become wider includes: Business and industry. Household Business, Communication, Education, Entertainment, Science, Medicine, Engineering, Distance Learning, Weather Forecasting. Carrier Searching and so on.
My project named “Event Management System” is software that store and maintained all events coordinated in college. It also helpful to print related reports. My project will help to record the events coordinated by faculties with their Name, Event subject, date & details in an efficient & effective ways.
In my system we have to make a system by which a user can record all events coordinated by a particular faculty. In our proposed system some more featured are added which differs it from the existing system such as security.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Toll tax management system project report..pdfKamal Acharya
Toll Tax Management System is a web based application that can provide all the information related to toll plazas and the passenger checks in and pays the amount, then he/she will be provided by a receipt. With this receipt he/she can leave the toll booth without waiting for any verification call.
The information would also cover registration of staff, toll plaza collection, toll plaza collection entry for vehicles, date wise report entry, Vehicle passes and passes reports b/w dates.
Construction method of steel structure space frame .pptxwendy cai
High-altitude bulk installation refers to the method of total assembling of small assembled units or loose parts directly in the design position, applicable to the installation of space structure such as space frame and reticulated shell.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Online resume builder management system project report.pdfKamal Acharya
This project aims at the Introduction to app Service Management.
This software is designed keeping in mind the user’s efficiency & ease of handling and maintenance , as and secured system over centralized data handling and providing with the features to get the complete study and control over the business.
The report depicts the basics logic used for software development long with the Activity diagrams so that logics may be apprehended without difficulty.
For detailed information, screen layouts, provided along with this report can be viewed.
Although this report is prepared with considering the results required these may be across since the project is subjected to future enhancements as per the need of organizations.
Automobile Management System Project Report.pdfKamal Acharya
The proposed project is developed to manage the automobile in the automobile dealer company. The main module in this project is login, automobile management, customer management, sales, complaints and reports. The first module is the login. The automobile showroom owner should login to the project for usage. The username and password are verified and if it is correct, next form opens. If the username and password are not correct, it shows the error message.
When a customer search for a automobile, if the automobile is available, they will be taken to a page that shows the details of the automobile including automobile name, automobile ID, quantity, price etc. “Automobile Management System” is useful for maintaining automobiles, customers effectively and hence helps for establishing good relation between customer and automobile organization. It contains various customized modules for effectively maintaining automobiles and stock information accurately and safely.
When the automobile is sold to the customer, stock will be reduced automatically. When a new purchase is made, stock will be increased automatically. While selecting automobiles for sale, the proposed software will automatically check for total number of available stock of that particular item, if the total stock of that particular item is less than 5, software will notify the user to purchase the particular item.
Also when the user tries to sale items which are not in stock, the system will prompt the user that the stock is not enough. Customers of this system can search for a automobile; can purchase a automobile easily by selecting fast. On the other hand the stock of automobiles can be maintained perfectly by the automobile shop manager overcoming the drawbacks of existing system.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Democratizing Fuzzing at Scale by Abhishek Aryaabh.arya
Presented at NUS: Fuzzing and Software Security Summer School 2024
This keynote talks about the democratization of fuzzing at scale, highlighting the collaboration between open source communities, academia, and industry to advance the field of fuzzing. It delves into the history of fuzzing, the development of scalable fuzzing platforms, and the empowerment of community-driven research. The talk will further discuss recent advancements leveraging AI/ML and offer insights into the future evolution of the fuzzing landscape.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Introduction to Casting Processes in Manufacturing
The MATLAB File by Akshit Jain .pdf on .
1. Page | 1
Akshit Jain Enrollment Number- TEN2103001
LAB FILE
of
Modeling and Simulation using MATLAB-Simulink
(EEE665)
Electrical Engineering Department
Faculty of Engineering, TMU
Jan 2024-May 2024
Submitted To: Submitted By: Akshit Jain
Mr. Umesh Kumar Singh (TEN2103001)
(Assistant Professor)
2. Page | 2
Akshit Jain Enrollment Number- TEN2103001
INDEX
S.No. Name of Experiment Page
No.
Remarks Signature
1. Study of Introduction to MATLAB. 3
2. Single phase uncontrolled converter for R and RL
load with capacitor filter using MATLAB/SIMULINK.
6
3. Single Phase Fully Controlled Converter Using R and
RL Load Using MATLAB/SIMULINK.
9
4. Three Phase Fully Controlled Converter Using R and
RL Load Using MATLAB/SIMULINK.
12
5. Single Phase uncontrolled inverter using
MATLAB/SIMULINK.
15
6. Three Phase-Controlled Inverters by PWM
Technique Using MATLAB/SIMULINK.
16
7. Single phase AC voltage controller using
MATLAB/SIMULINK.
19
8. Study of Basic Matrix Operations Using
MATLAB/SIMULINK.
27
9. Determination of Eigen Values and Eigen Vectors of
a Square Matrix Using MATLAB Software.
30
10. To Solve Linear Equation Using MATLAB Software. 32
11. Determination of Roots of a Polynomial Using
MATLAB.
33
12. Solution of Difference Equations using MATLAB
Software
34
3. Page | 3
Akshit Jain Enrollment Number- TEN2103001
Starting MATLAB
Experiment: 01
Study of Introduction to MATLAB
After logging into our account, we can enter MATLAB by double-clicking on the MATLAB shortcut
icon (MATLAB 7.0.4) on your Windows desktop. When we start MATLAB, a special window called
the MATLAB desktop appears. The desktop is a window that contains other windows. The major
tools within or accessible from the desktop are:
•The Command Window
•The Command History
•The Workspace
•The Current Directory
•The Help Browser
•The Start button
1. Using MATLAB as a calculator: -
We will have noticed that if we do not specify an output variable, MATLAB uses a default variable
ans, short for answer, to store the results of the current calculation. Note that the variable ans is
created (or overwritten, if it is already existed). To avoid this, we may assign a value to a variable or
output argument name. For example:
X=12+1*2
X = 14
2. Creating simple plots: -
We need to prepare x and y in an identical array form; namely, x and y are row or column arrays of
the same length
The MATLAB command to plot a graph is plot (x, y).
>> x = [1 2 3 4 5 6];
>> y = [3 -1 2 4 5 1];
>> plot (x, y)
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By- Akshit Jain Enrol.no. – TEN2103001
3. Matrix generation: -
A vector is a special case of a matrix. The purpose of this section is to show how to create
vectors and matrices in MATLAB. As discussed earlier, an array of dimension 1 ×n is called
a row vector, whereas an array of dimension m × 1 is called a column vector. The elements
of vectors in MATLAB are enclosed by square brackets and are separated by spaces or by
commas.
3.1Entering matrix:-
To enter a matrix c c =
1 2 3
4 5 6
7 8 9
3.2Matrix functions: -
>> d
d =
1.0e+16 *
-0.4504 0.9007 -0.4504
0.9007 -1.8014 0.9007
-0.4504 0.9007 -0.4504
>> e
e =
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By- Akshit Jain Enrol.no. – TEN2103001
6.6613e-16
>> f
f =
1
5
9
>> g
g =
16.1168
-1.1168
-0.0000
>> h
h =
1.0e+16 *
-0.4504 0.9007 -0.4504
0.9007 -1.8014 0.9007
-0.4504 0.9007 -0.4504
>> i
i =
16.8481
>> j
j =
2
Introduction to programming in MATLAB
Commands with MATLAB is:
to create a file with a list of commands,
1. save the file, and
2. run the file.
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By- Akshit Jain Enrol.no. – TEN2103001
Experiment-02
Single phase uncontrolled converter for R and RL load with capacitor filter using
MATLAB/SIMULINK.
A diode rectifier or uncontrolled rectifier is the converter circuit that converts ac signal into (an
alternating signal) dc signal (unidirectional signal). Uncontrolled rectifier circuits use diodes to
convert ac power to dc power and are divided into two types, single-phase and three-phase.
Again singe-phase uncontrolled rectifiers are divided into two types, they are,
1. Half-wave uncontrolled rectifier
2. Full-wave uncontrolled rectifier
i. Center tapped rectifier
ii. Bridge rectifier
Single Phase Full Wave Bridge Rectifier with R-Load:
The below figure presents the circuit connection of a single-phase full-wave bridge rectifier loaded
with a resistive load. A full-wave bridge rectifier uses four diodes connected in a close-loop
configuration which converts alternating current into direct current. The ac input to the
uncontrolled full wave rectifier is given through a transformer.
Single Phase Full Wave Bridge Rectifier with R Load
When the ac supply source to the rectifier is turned ON, the positive half cycle of ac input starts.
During the positive half cycle of ac input, point A in the above circuit is made positive with respect
to point B. Due to this, diodes D1 and D2 are forward biased (since their anode terminals are
connected to positive with respect to the cathode), and diodes D3 and D4 are reverse biased (since
their anode terminals are connected to negative with respect to the cathode).
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By- Akshit Jain Enrol.no. – TEN2103001
Waveforms For Single Phase Full Wave Uncontrolled rectifier with R- Load
Thus, diodes D1 and D2 act as the closed switch and diodes D3 and D4 act as the open switch. Therefore, the
current starts flowing from point A, through diode D1, the load resistance R, and diode D2 to point B as shown
below in figure A. The load current will continue to flow through D1 and D2 until the positive half-cycle ends.
The average value of the load voltage Vdc can be calculated as follows,
Idc =2Vm/πR
The output dc power is given by,
Pdc = VdcIdc = 4Vm2/π2R
Single Phase Full Wave Bridge Rectifier with RL-Load:
In the above circuit, we have seen the full wave bridge rectifier with a resistive load where the output current and
voltage will be in phase. Let us see the circuit operation of an uncontrolled full wave bridge rectifier with RL-load.
The value of average output voltage and output current with RL
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By- Akshit Jain Enrol.no. – TEN2103001
Single Phase Full Wave Bridge Rectifier with RL Load
Waveforms for Single Phase Full Wave Uncontrolled Rectifier With RL
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By- Akshit Jain Enrol.no. – TEN2103001
Experiment- 03
Single Phase Fully Controlled converter using R and RL load using
MATLAB/SIMULINK
A single-phase bridge converter needs 4 thyristors. This configuration leads to two quadrant
operation. Such a converter is called the two-quadrant converter or fully controlled converter. Many
times, the bridge circuit is modified by replacing two thyristors by two diodes. This configuration
leads to one quadrant operation (operation is restricted to first quadrant). Such a converter is called
the one-quadrant converter or a semi converter.
The load on the converter may be purely resistive, inductive (R-L) load or R-L-E load. An R-L-E load
consists of resistance, inductance and motor (E stands for back emf of motor). The load may also
have a battery (emf E) instead of motor.
Single phase fully controlled rectifier using R Load
1. With Resistive Load: A fully controlled full-wave bridge rectifier is shown in Fig. All the four
devices used in the circuit are thyristors TH1-TH4 for control of output power. In this
circuit, diagonally opposite pair of thyristors are made to conduct, and are commutated,
simultaneously. During the first positive half cycle, thyristors TH1 and TH3 are forward
biased and if they are triggered simultaneously, the current flows through the load via
thyristor TH1-load-TH3-source. Thus, during positive half cycle, thyristors TH1 and TH3 are
conducting. During the negative half cycle of the ac input, thyristors TH2 and TH4 are
forward biased andif they are triggered simultaneously, the current flows through the load
via thyristor TH2- load-TH4-source. Thyristors TH1, TH3 and TH2, TH4 are triggered at the
same firing angle α in each positive and negative half cycles of the supply voltage
respectively. When the supply voltage falls to zero, the current also becomes zero. Thus,
thyristors TH1, TH3 in positive half cycle and TH2 and TH4 in negative half cycle turn off by
natural commutation.
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By- Akshit Jain Enrol.no. – TEN2103001
Voltage and Current waveforms ofcircuit are Depicted
Single Phase Fully Controlled Rectifier With R-L Load
The voltage waveform at the dc terminals comprises a steady dc component superimposed with
an ac ripple component, having a fundamental frequency equal to twice that of ac supply.
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By- Akshit Jain Enrol.no. – TEN2103001
Single Phase Fully Controlled Rectifier with RL Load
The average output dc voltage is given b
The average value of output dc voltage can be varied, by varying firing angle α, continuously from
positive maximum to negative maximum, assuming continuous current flow at the dc terminals.
Because the average dc voltage is reversible even though the current flow in the load is
unidirectional, the power flow in the convener can be in either direction.
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By- Akshit Jain Enrol.no. – TEN2103001
Experiment-04
Three Phase Fully Controlled Converter Using R and RL Load
Using MATLAB/SIMULINK
A three-phase full-wave controlled rectifier, also known as a three-phase thyristor rectifier or six-
pulse rectifier, is a type of rectifier circuit used to convert alternating current (AC) into direct current
(DC). It utilizes six thyristors (also known as silicon-controlled rectifiers or SCR) to control the flow
of current. Here's how a three-phase controlled rectifier works:
1. Kirchhoff’s voltage law around any path shows that only one thyristor in the top half of the bridge
may conduct at one time (S1, S3, or S5). The thyristor that is conducting will have its anode connected
to the phase voltage that is highest at that instant.
2. Kirchhoff’s voltage law also shows that only one thyristor in the bottom half of the bridge may
conduct at one time (S2, S4, or S6). The thyristor that is conducting will have its cathodeconnected to
the phase voltage that is lowest at that instant.
3. As a consequence of points 1 and 2, S1 and S4 cannot conduct at the same time. Similarly,S3 and S6
cannot conduct simultaneously, nor can S5 and S2.
4. The output voltage across the load is one of the line-to-line voltages of the source. For example,
when S1 and S2 are on, the output voltage is Vac. Furthermore, the thyristors that are on are
determined by which line-to-line voltage is the highest at that instant. For example, when Vac is the
highest line-to-line voltage, the output is Vac.
Three Phase Full Wave Controlled Rectifier R Load
Single Phase AC Voltage Controller
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By- Akshit Jain Enrol.no. – TEN2103001
Waveforms of Three Phase Full Wave SCR with R Load
One thyristor of the conducting pair powers the positive side of load, while the other thyristor
powers the negative side of the load. Thyristors T1, T3, T2, and T4 form a bridge rectifier network
between phases A and B, similary thyristors T3, T5, T4, and T6 between phases B and C and T5, T1, T6,
Three Phase Full Wave Controlled Rectifier - RL Load
Three Phase Full Wave SCR with RL Load
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By- Akshit Jain Enrol.no. – TEN2103001
Waveforms of Three Phase Full Wave SCR with RL Load
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By- Akshit Jain Enrol.no. – TEN2103001
Experiment-05
Single Phase uncontrolled inverter using MATLAB/SIMULINK
A single-phase voltage source inverter inverts the DC voltage into square-wave ac or sine-wave ac
voltages. Currently, there are two types of voltage inverters on the market: the first is a full-bridge
voltage source inverter, which consists of four switches, IGBTs, or MOSFETs, and the second is a
single-phase voltage source inverter, which consists of two switches, IGBTs, or MOSFETs. These
voltage source inverter applications include single phase UPS and switching power supplies. These
have been mostly used in high-power static power topologies.
Simulink Model of Single-Phase Voltage Source Inverter
In this article, we will explain how we can make a single-phase voltage source inverter as well as
how we choose the components with the help of the MATLAB Simulink model. First, we will explain
how we can make a new model in MATLAB. To make a new model, just open MATLAB and click on
the Simulink library. After clicking on Simulink Library, a new page will open with the name Simulink
Library Browser.
Simulink Model
Similarly, we search and drag all the other component blocks, such as the pulse generator, logic
gate, capacitor, resistor, etc. Then we join the circuit according to our requirements. Now our single-
p
h
a
s
evoltage source inverter is complete with the help of the MATLAB Simulink library. The Simulink
model circuit can be seen in the figure below.
Simulation
Because both IGBT switches should not be ON at the same time, one gate pulse directly connects
with one IGBT switch, and the other gate pulse is connecting with the other IGBT switch after NOT
Gate. In other words, this circuit works through complementary switching. When we simulate this
circuit at 50% duty cycle, then the output voltage would be half of the supply voltage, which means
it would be 50 volts, as shown in the figure below.
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By- Akshit Jain Enrol.no. – TEN2103001
Experiment-06
Three Phase-Controlled Inverters by PWM Technique Using
MATLAB/SIMULINK
In electrical engineering, inverters are one of the basic circuits used and are mostly used in UPS
(uninterrupted power supply), which is present in almost every house now. Hence, the basic
purpose of an inverter is to convert direct current (DC) to alternating current (AC), which is no doubt
the opposite of rectifiers. So, for beginners, the definition of AC voltage can be taken as the voltage
that changes its direction from positive voltage to negative voltage across the same terminal in a
specified period of time over and over again. A simple sinusoidal wave is an AC wave. However, DC
can be defined as a constant source of voltage that remains either positive or negative over time.
Design Three Phase Inverter Using Simulink MATLAB
Open MATLAB and then open Simulink using the Simulink icon on MATLAB, as we have been doing
in previous tutorials. Create a new blank model and save it in the first hand so we can access it in
the future. Now, click on the library browser icon on Simulink’s recently created model. In the library
browser, select the section named “Simscape”, as shown in the figure below.
Three Phase Bridge
Place six such diodes on the model we created previously and arrange them in three rows with two
thyristors each. Connect all of them to make a bridge, as shown in the figure below.
Load and Source
At the input side of the bridge, we created previously, connect the DC voltage source, and at the
output, connect the load (change the RLC load to only a resistive load) with each branch to each row
as shown in the figure below.
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By- Akshit Jain Enrol.no. – TEN2103001
As the phase delay is in seconds, the phase delay of the second pulse generator will be (2e-3)
*(1/6),and so on. All six pulse generators connected are shown in the figure below.
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By- Akshit Jain Enrol.no. – TEN2103001
Simulink Model
At the output, connect the voltage measurement across each resistor and connect the scope at the
output of each voltmeter, as shown in the figure below.
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By- Akshit Jain Enrol.no. – TEN2103001
Experiment 07
Single phase AC voltage controller using MATLAB/SIMULINK
The ac voltage controller also called as AC Regulator is a static power electronic circuit that converts
fixed ac to variable ac. It accomplishes this task without a change in frequency. It finds application
in heating, lighting circuits, speed control of ac machines, fan regulators, etc., similar to the
applications of an autotransformer.
The circuit of the ac voltage controller is based on either thyristor, TRIACs, SCRs, or IGBTs, which
gives a variable ac at the output when their triggering angle is adjusted or varied. The output voltage
is either increased, decreased, or kept constant by varying the RMS value of input fixed alternating
voltage.
Classification of AC Voltage Controllers:
Depending upon the supply, ac voltage controllers are divided into two types. They are,
Single-phase ac voltage controller
Half-wave voltage control or unidirectional ac voltage controller
Full-wave control or bidirectional ac voltage controller
Three-phase ac voltage controller
Half-wave voltage control or unidirectional ac voltage controller
Full-wave control or bidirectional ac voltage controller
Single Phase Half Wave AC Voltage Controller:
The below shows the single-phase half-wave or unidirectional ac voltage controller circuit
with output voltage and current waveforms.
Single-phase half-wave ac voltage controller consists of one thyristor in anti-parallel with one diode.
The power delivered to the load will depend upon the firing angle of the thyristor. During the
positive half cycle of supply voltage, only the thyristor is forward-biased. The thyristor will conduct
from α to π.
At ωt = π, the thyristor will get turn-off for R-load. Now, when the negative half cycle starts diode
will get forward biased (i.e., from π to 2π) and it conducts. Only the positive half cycle is controlled
in a single-phase half-wave ac voltage controller due to this reason it is also known as a
unidirectional ac voltage controller. The average value of the output voltage is given by,
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By- Akshit Jain Enrol.no. – TEN2103001
Unidirectional ac voltage controllers are only suitable for low-power resistive loads like heating and
lighting.
Single Phase Full Wave AC Voltage Controller:
The full-wave or bidirectional ac voltage controller uses two thyristors instead of one thyristor and
diode. The two thyristors are connected in anti-parallel. Let see the working of full-wave ac voltage
controller with resistive (R) load and resistive-inductive (RL) load.
Single Phase Full Wave AC Voltage Controller with ResistiveLoad:
The power circuit diagram for a single-phase ac voltage controller with a resistive load is shown in
the below figure. The power delivered to the load flows through thyristor T1 during the positive half-
cycle and through thyristor T2 during the negative half-cycle.
Single Phase AC Voltage Controller Using Resistive Load
During the positive half cycle of the source voltage VS, SCR T1 is forward biased and SCR T2 is reverse
biased. No conduction of load current takes place until thyristor T1 is triggered at some firing angle
α. So, the entire supply voltage VS appears across thyristor T1 with the same polarity and across T2
with the reversed polarity. As soon as the thyristor T1 is triggered at the instant ωt = α, T1 starts
conducting and the entire supply voltage VS, except the drop across T1, appears across the load
resistance.
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By- Akshit Jain Enrol.no. – TEN2103001
W
a
v
e
f
o
r
m
s
S
Single-phase AC Voltage Controller Using R- Load
The above shows the waveforms for source voltage, gating signals, output voltage, output current,
and the voltage across the SCRs. At ωt = π, the load voltage, the load current falls to zero and
therefore T1 stops conducting. Thereafter thyristor T2 will be forward biased and T1 will be
reversebiased and of course, there will be no conduction until T2 is triggered i.e., until (π + α).
22. Page | 22
By- Akshit Jain Enrol.no. – TEN2103001
As long as thyristor T1 in ON state, i.e., from α < ωt < π, voltage across T2 will be VT2 = – VT1 = -
(ON- state voltage drop of T1). At ωt = (π + α), thyristor T2 is triggered and it starts conducting.
Except for the small voltage drop across T2, the entire supply voltage appears across the load
resistance and the load current flows. As long as T2 is in ON state, i.e., from (π + α) < ωt < 2π,
voltage across T1 willbe VT1 = -VT2 = -(ON-state voltage drop of T2).
This process goes on and continues for every cycle as shown in the waveform. For resistance load,
the source current waveform will follow the source voltage waveform i.e., both the voltage and
current of the source will be in phase with each other.
If the firing angles at which the thyristors T1 and T2 are same. The RMS value of output voltage and
current with resistive load is given by,
Single Phase Full Wave AC Voltage Controller with RL Load
The below shows the single-phase ac voltage controller circuit with resistive and inductive load.
23. Page | 23
By- Akshit Jain Enrol.no. – TEN2103001
Single Phase AC Voltage Controller
Operation When α ≤ Φ:
Consider α = Φ (load phase angle) i.e., the ac voltage regulator is operating under steady-state
conditions. The conduction period of SCR T2 is from zero to Φ and from Φ to (π + Φ) SCR T1 will
conduct and again from (π + Φ) to (2π + Φ) SCR T2 will conduct as shown in the waveform below.
Waveforms for Single Phase AC Voltage ontrolled with RL Load
24. Page | 24
By- Akshit Jain Enrol.no. – TEN2103001
Waveforms for single phase AC Voltage controlled with RL Load
Thus, from Φ to (π + Φ), T1 will conduct. If T2 is triggered at a firing angle (π + α) < (π + Φ), then
T2 will remain OFF because T1 is conducting a current iT1 and the voltage drop across T1 will make
SCR T2 reverse bias. At ωt = (π + Φ), T2 will get turned ON since the voltage drop and conduction
current in T1 at this instant becomes zero. Thus, SCR T2 will conduct from (π + Φ) to (2π + Φ).
At the instant ωt = π, the load and source voltages become zero but, the current possesses some
value due to the presence of inductance at the load side. So, thyristor T1 continues to conduct
until the current flowing through it becomes zero. The angle at which thyristor current becomes
zero is known as extinction angle β. So, output voltage and current are equal to source voltage and
current from α to β respectively.
From angle β to (π + α), the value of load voltage and load current will be zero. At the instant ωt =
(π + α), thyristor T2 is triggered and it starts conducting. So, the load current which is the same as
current iT2 through T2 will flow in the reverse direction.
At the end of the first cycle i.e., at the instant ωt = 2π source voltage VS and load voltage
VO becomes zero but the current doesn’t become zero. At the instant ωt = (π + α + γ) where, ωt = γ
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By- Akshit Jain Enrol.no. – TEN2103001
For High Inductance Value
It is known as conduction angle, the thyristor current iT2 becomes zero. This turns OFF thyristor
T2and it get reverse biased as shown in the waveform
.
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By- Akshit Jain Enrol.no. – TEN2103001
The RMS value of output voltage and current with RL load is given by,
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By- Akshit Jain Enrol.no. – TEN2103001
Experiment 08
Study of Basic Matrix Operations Using MATLAB/SIMULINK
The basic operations on Matrix are as follow:
Write a Matrix in MATLAB
A= [1 1 -2; 2 2 1; 2 1 1]
Find the size of a Matrix
The size of a Matrix is its number of rows and columns. To find the size of a Matrix, use the
following code
Size(A)
Add A and C using the following code
A+C
Divide Matrices element by element
To divide two Matrices element by element, use the following
A/C
Find the inverse of a Matrix
To find the inverse of a Matrix in MATLAB, use the following code
Inv(A)
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By- Akshit Jain Enrol.no. – TEN2103001
1. Find the determinant of a Matrix
To find the determinant of a Matrix in MATLAB, use the following code
Det(A)
2. Define a Matrix with Random elements
To create a Matrix with Random element in Matlab, use
Rand (3,2)
3. Find the diagonal of a Matrix
To find the main diagonal of A, use
Diag(A)
4. Compute the Transpose of a Matrix
To find the transpose of a Matrix, use the following: -
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By- Akshit Jain Enrol.no. – TEN2103001
Experiment 09
Determination of Eigen Values and Eigen Vectors of a Square Matrix Using MATLAB
Software
Eigen values and Eigen vectors are properties of a square matrix.
Let is an N*N matrix, X be a vector of size N*1 and be a scalar.
Then the values X, satisfying the equation are eigenvectors and eigenvalues of matrix A
respectively.
o A matrix of size N*N possess N eigenvalues
o Every eigenvalue corresponds to an eigenvector.
Matlab allows the users to find eigenvalues and eigenvectors of matrix using eig() method.
Different syntaxes of eig() method are:
o e = eig(A)
o [V,D] = eig(A)
o [V,D,W] = eig(A)
o e = eig(A,B)
Let
e = eig(A)
• It returns the vector of eigenvalues of square matrix A.
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By- Akshit Jain Enrol.no. – TEN2103001
Output:
[V, D] = eig(A)
o It returns the diagonal matrix D having diagonals as eigenvalues.
o It also returns the matrix of right vectors as V.
o Normal eigenvectors are termed as right eigenvectors.
o V is a collection of N eigenvectors of each N*1 size (A is N*N size) that satisfies A*V
= V*D
% Square matrix of size 3*3
Output:
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By- Akshit Jain Enrol.no. – TEN2103001
Experiment 10
To Solve Linear Equation Using MATLAB Software
We can use the MATLAB built-in function solve () to solve the system of linear equations in MATLAB.
First of all, we can define the variables using the syms variable. After that, we can write the
equations in MATLAB. After that, we need to use the function solve () to solve the equations. For
example, let’s define some equations in MATLAB and find their solution using the solve () function.
See the code below.
Output:
The function linsolve() is used instead of the solve() function if you have matrices instead of
equations. We can also convert the equations to matrix form using the equations To Matrix()
function. For example, let’s define some equations in Matlab and find their solution using the
linsolve() function. See the code below.
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By- Akshit Jain Enrol.no. – TEN2103001
Experiment 11
Determination of Roots of a Polynomial Using MATLAB
Syntax r = roots(p) returns the roots of the polynomial represented by p as a column vector. Input
p is a vector containing n+1 polynomial coefficients, starting with the coefficient of xn
. For example,
p = [3 2 -2] represents the polynomial 3x2+2x−2. A coefficient of 0 indicates an intermediate power
that is not present in the equation.
The root’s function solves polynomial equations of the form p1xn+...+pnx+pn+1=0. Polynomial
equations contain a single variable with nonnegative exponents.
Examples
1. Roots of Quadratic Polynomial: -
Use the poly function to obtain a polynomial from its roots: p = poly(r). The poly function
is the inverse of the roots function.
Use the f zero function to find the roots of nonlinear equations. While the root’s function
works only with polynomials, the zero function is more broadly applicable to different
types of equations.
Roots of a Polynomial
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By- Akshit Jain Enrol.no. – TEN2103001
Experiment 12
Solution of Difference Equations using MATLAB Software
First-Order Linear ODE
Solve this differential equation.
dy/dx=ty
Fiíst, represent y by using symsto create the symbolic function
y(t).symsy(t)
Define the equation using ==and represent diffeíentiation using the difffunction.
ode = diff (y, t) == t*y
ode(t) = diff(y(t), t) == t*y(t)
Solve the equation using dsolve.
ySol(t) = dsolve(ode)
ySol(t)= C1*exp(t^2/2)
Solve Differential Equation with Condition
In the previous solution, the constant C1appears because no condition was specified. Solve the
equation with the initial condition y(0) == 2. the dsolvefunction finds a value of C1that satisfies the
condition.
cond = y(0) == 2;
ySol(t) = dsolve(ode,cond)
ySol(t) =2*exp(t^2/2)
.
Nonlinear Differential Equation with Initial Condition: -Solve this nonlinear differential
equation with an initialcondition. the equation has multiple solutions.
Second-Oídeí ODE with Initial Conditions
Solve this second-order differential equation with two initial conditions.
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By- Akshit Jain Enrol.no. – TEN2103001
d2
y/dx2
=cos(2x)-y
y (0)=1
y’
(0)=0
Steps: -Define the equation and conditions. The second initial condition involves the first derivative
of y. Represent the derivative by creating the symbolic function Dy = diff(y) and thendefine the
condition using Dy (0) ==0.
syms y(x)
Dy = diff(y);
ode = diff(y,x,2) == cos(2*x)-y;cond1
= y(0) == 1;
cond2 = Dy(0) == 0;
Solve odefor y. Simplify the solution using the simplifyfunction.
conds = [cond1 cond2]; ySol(x)
= dsolve(ode,conds);ySol =
simplify(ySol)
ySol(x) = 1 - (8*sin(x/2)^4)/3