This document discusses alternating current (AC) circuits and analysis. It begins by introducing AC circuits driven by sinusoidal sources as opposed to direct current (DC) circuits. Sinusoids and phasors are then defined as tools for analyzing AC circuits. Common circuit elements like resistors, inductors, and capacitors are examined in the phasor domain. Methods for determining voltage, current, impedance, power, and other characteristics of AC circuits are presented through examples and exercises. Key aspects of sinusoidal steady-state analysis of AC circuits are covered.
Lecture 02 ECEG-1351-Chapter Two - AC Circuits.pptxmogesalemu573
This document contains lecture slides on fundamentals of electricity and digital electronics. It discusses representation of AC circuit elements using phasors, analysis of AC circuits using phasors, and AC power calculations. Key topics covered include sinusoids and phasors, complex numbers, single circuit elements in steady state, analysis of RLC circuits, and power and power factor calculations. Examples of circuit analyses using phasors are provided. The document appears to be from a lecture given to students on basic concepts of alternating current circuits.
NETWORK ANALYSIS PART 3 For GATE IES PSU -2020 RRB/SSC AE JE TECHNICAL INT...Prasant Kumar
for youtube video visit link
https://youtu.be/eq5UnA1e17E
Single phase AC circuits is most basic and important portion topic for GATE,IES,PSU,SSC,and different state level examinations.which covers following topics.1-Phase AC Circuits,AC & DC SIGNALS,Differentiate AC vs DC signal,PROPERTIES OF AC SIGNALS,peak value and peak to peak value,average value,R.M.S. value,instantaneous value,form factor,peak factor,WAVEFORM ANALYSIS OF AC SIGNAL,advantages of sinusoidal waveform,cycle, time periods and frequency,Phasor,Differentiate between Active, Reactive and Apparent Power,power triangle ,MCQ FOR PRACTICES,unilateral circuit ,bilateral circuit , irreversible circuit , reversible circuit series with each other , parallel with each other , series with the voltage source., parallel with the voltage source ,linear network , non-linear network , passive network , active network
# Previous videos in channel for learning
https://youtu.be/NSdIbrxIE74
# Network Analysis Part 1
https://youtu.be/UWSHxL8Daro
# Network Analysis Part 2
https://youtu.be/fPzCrnBlsIA
AC motors Comparision
https://youtu.be/Nwo8IfNdQZA
Wound Rotor and squirrel cage rotor
https://youtu.be/Y_WoddRiVSE
What is electrical Machine
https://youtu.be/N4xWOwgi8I4
Overview of Power plants
https://youtu.be/kPWElNXvxGs
How to Study for success
https://youtu.be/A_L1lI3zOsc
Why unemployment of Indian engineers
https://youtu.be/pdLe1Z4RRGs
Why I do engineering
https://youtu.be/DTtRl1t2DaM
Electrical Engineering is the Branch of Engineering. Electrical Engineering field requires an understanding of core areas including Thermal and Hydraulics Prime Movers, Analog Electronic Circuits, Network Analysis and Synthesis, DC Machines and Transformers, Digital Electronic Circuits, Fundamentals of Power Electronics, Control System Engineering, Engineering Electromagnetics, Microprocessor and Microcontroller. Ekeeda offers Online Mechanical Engineering Courses for all the Subjects as per the Syllabus. Visit : https://ekeeda.com/streamdetails/stream/Electrical-and-Electronics-Engineering
VCE Physics Unit 3: Electronics & Photonics Base notesAndrew Grichting
This document provides an overview of key concepts in electronics and photonics covered in a VCE Physics Unit 3 topic. It discusses:
- Applying concepts such as current, resistance, voltage and power to electronic circuits including diodes, resistors, thermistors, light dependent resistors, photodiodes and LEDs.
- Calculating effective resistance of parallel and series circuits and voltage dividers.
- Describing energy transfers in opto-electronic devices and information transfer using light intensity modulation and demodulation.
- Designing, analyzing and investigating circuits for specific purposes using specifications for electronic components.
- Analyzing voltage characteristics of amplifiers and identifying safe practices for electrical and photonic equipment.
Electrical Engineering is the Branch of Engineering. Electrical Engineering field requires an understanding of core areas including Thermal and Hydraulics Prime Movers, Analog Electronic Circuits, Network Analysis and Synthesis, DC Machines and Transformers, Digital Electronic Circuits, Fundamentals of Power Electronics, Control System Engineering, Engineering Electromagnetics, Microprocessor and Microcontroller. Ekeeda offers Online Mechanical Engineering Courses for all the Subjects as per the Syllabus Visit : https://ekeeda.com/streamdetails/stream/Electrical-Engineering
AC circuits usually contain inductance or capacitance which cause reactance. Reactance is resistance to current flow due to these components and is measured in ohms. There are two types of reactance - inductive reactance XL and capacitive reactance XC. Phasor diagrams can represent alternating quantities, with the phase angle between voltage and current indicating whether a circuit is resistive, capacitive, or inductive.
This document provides an overview of circuit theory concepts including:
- Electric circuits are interconnections of electrical elements.
- Charge is the most basic quantity and is measured in coulombs. Current is the rate of charge flow measured in amperes.
- Voltage is the energy required to move a unit charge through a circuit element and is measured in volts.
- Power is the rate of energy use/production and is measured in watts.
- Circuit elements include passive (resistors, capacitors, inductors) and active (sources) components. Kirchhoff's laws and Ohm's law govern circuit analysis.
- Nodal and mesh analysis provide systematic techniques for analyzing circuits by
Lecture 02 ECEG-1351-Chapter Two - AC Circuits.pptxmogesalemu573
This document contains lecture slides on fundamentals of electricity and digital electronics. It discusses representation of AC circuit elements using phasors, analysis of AC circuits using phasors, and AC power calculations. Key topics covered include sinusoids and phasors, complex numbers, single circuit elements in steady state, analysis of RLC circuits, and power and power factor calculations. Examples of circuit analyses using phasors are provided. The document appears to be from a lecture given to students on basic concepts of alternating current circuits.
NETWORK ANALYSIS PART 3 For GATE IES PSU -2020 RRB/SSC AE JE TECHNICAL INT...Prasant Kumar
for youtube video visit link
https://youtu.be/eq5UnA1e17E
Single phase AC circuits is most basic and important portion topic for GATE,IES,PSU,SSC,and different state level examinations.which covers following topics.1-Phase AC Circuits,AC & DC SIGNALS,Differentiate AC vs DC signal,PROPERTIES OF AC SIGNALS,peak value and peak to peak value,average value,R.M.S. value,instantaneous value,form factor,peak factor,WAVEFORM ANALYSIS OF AC SIGNAL,advantages of sinusoidal waveform,cycle, time periods and frequency,Phasor,Differentiate between Active, Reactive and Apparent Power,power triangle ,MCQ FOR PRACTICES,unilateral circuit ,bilateral circuit , irreversible circuit , reversible circuit series with each other , parallel with each other , series with the voltage source., parallel with the voltage source ,linear network , non-linear network , passive network , active network
# Previous videos in channel for learning
https://youtu.be/NSdIbrxIE74
# Network Analysis Part 1
https://youtu.be/UWSHxL8Daro
# Network Analysis Part 2
https://youtu.be/fPzCrnBlsIA
AC motors Comparision
https://youtu.be/Nwo8IfNdQZA
Wound Rotor and squirrel cage rotor
https://youtu.be/Y_WoddRiVSE
What is electrical Machine
https://youtu.be/N4xWOwgi8I4
Overview of Power plants
https://youtu.be/kPWElNXvxGs
How to Study for success
https://youtu.be/A_L1lI3zOsc
Why unemployment of Indian engineers
https://youtu.be/pdLe1Z4RRGs
Why I do engineering
https://youtu.be/DTtRl1t2DaM
Electrical Engineering is the Branch of Engineering. Electrical Engineering field requires an understanding of core areas including Thermal and Hydraulics Prime Movers, Analog Electronic Circuits, Network Analysis and Synthesis, DC Machines and Transformers, Digital Electronic Circuits, Fundamentals of Power Electronics, Control System Engineering, Engineering Electromagnetics, Microprocessor and Microcontroller. Ekeeda offers Online Mechanical Engineering Courses for all the Subjects as per the Syllabus. Visit : https://ekeeda.com/streamdetails/stream/Electrical-and-Electronics-Engineering
VCE Physics Unit 3: Electronics & Photonics Base notesAndrew Grichting
This document provides an overview of key concepts in electronics and photonics covered in a VCE Physics Unit 3 topic. It discusses:
- Applying concepts such as current, resistance, voltage and power to electronic circuits including diodes, resistors, thermistors, light dependent resistors, photodiodes and LEDs.
- Calculating effective resistance of parallel and series circuits and voltage dividers.
- Describing energy transfers in opto-electronic devices and information transfer using light intensity modulation and demodulation.
- Designing, analyzing and investigating circuits for specific purposes using specifications for electronic components.
- Analyzing voltage characteristics of amplifiers and identifying safe practices for electrical and photonic equipment.
Electrical Engineering is the Branch of Engineering. Electrical Engineering field requires an understanding of core areas including Thermal and Hydraulics Prime Movers, Analog Electronic Circuits, Network Analysis and Synthesis, DC Machines and Transformers, Digital Electronic Circuits, Fundamentals of Power Electronics, Control System Engineering, Engineering Electromagnetics, Microprocessor and Microcontroller. Ekeeda offers Online Mechanical Engineering Courses for all the Subjects as per the Syllabus Visit : https://ekeeda.com/streamdetails/stream/Electrical-Engineering
AC circuits usually contain inductance or capacitance which cause reactance. Reactance is resistance to current flow due to these components and is measured in ohms. There are two types of reactance - inductive reactance XL and capacitive reactance XC. Phasor diagrams can represent alternating quantities, with the phase angle between voltage and current indicating whether a circuit is resistive, capacitive, or inductive.
This document provides an overview of circuit theory concepts including:
- Electric circuits are interconnections of electrical elements.
- Charge is the most basic quantity and is measured in coulombs. Current is the rate of charge flow measured in amperes.
- Voltage is the energy required to move a unit charge through a circuit element and is measured in volts.
- Power is the rate of energy use/production and is measured in watts.
- Circuit elements include passive (resistors, capacitors, inductors) and active (sources) components. Kirchhoff's laws and Ohm's law govern circuit analysis.
- Nodal and mesh analysis provide systematic techniques for analyzing circuits by
This document provides an overview of circuit theory concepts including:
- Electric circuits are interconnections of electrical elements.
- Charge is the most basic quantity and is measured in coulombs. Current is the rate of charge flow measured in amperes.
- Voltage is the energy required to move a unit charge through a circuit element and is measured in volts.
- Power is the rate of energy use/production and is measured in watts.
- Circuit elements include passive (resistors, capacitors, inductors) and active (sources) components. Kirchhoff's laws and Ohm's law govern circuit analysis.
- Nodal and mesh analysis provide systematic techniques for analyzing circuits by
Basic Electrical and Electronics Engineering.pptxLenine8
This document provides an overview of the topics covered in the Basic Electrical Engineering course at Rajeev Gandhi Memorial College of Engineering & Technology. The syllabus includes DC and AC circuits. Key concepts covered are electrical circuit elements like resistors, inductors and capacitors. Kirchhoff's laws for analyzing circuits are also introduced. The document defines various electrical terms and provides expressions for power, energy, resistance and other circuit parameters.
Generator electricals for slideshare (wecompress.com)David P
Generator or Genset electrical components
Generator electrical calculations
Generator type of loads
what is power factor & how it affects the Generator performance
Generator load calculations
1. The document discusses AC circuits and components including inductors, capacitors, resistors, and transformers.
2. Key concepts covered include inductive and capacitive reactance, impedance, phase relationships between voltage and current, and calculations of effective voltage and current.
3. Transformers can be used to step up or down voltages in an AC circuit by changing the ratio of turns in the primary and secondary coils. An ideal transformer does not lose energy.
This document discusses capacitors and inductors in electrical circuits. It explains that capacitors store charge and consist of two conductive plates separated by an insulator. Inductors create a magnetic field when current flows through a coil of wire. The key points are:
1) Capacitance is measured in Farads and relates the amount of charge stored to the voltage. Current leads voltage in a capacitor by 90 degrees.
2) Inductance opposes changes in current. Voltage leads current in an inductor by 90 degrees.
3) Impedance represents the total opposition to current in an AC circuit and can be calculated using resistance, inductive reactance, and capacitive reactance.
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.
This document discusses AC circuits and their components. It covers:
- Calculating inductive and capacitive reactance for inductors and capacitors.
- Phase relationships in circuits with resistance, capacitance, and inductance. Voltage leads or lags current depending on the component.
- Impedance, effective current, power, and resonant frequency calculations for series RLC circuits. Resonance occurs when inductive and capacitive reactances cancel out.
Alternating current signal
AC means Alternating Current and DC means Direct Current. AC and DC are also used when referring to voltages and electrical signals which are not currents! For example: a 12V AC power supply has an alternating voltage (which will make an alternating current flow).
This document provides an overview of alternating current (AC) circuits. It discusses the characteristics of AC voltage and current, including their sinusoidal variation over time. It also examines the behavior of common circuit elements like resistors, inductors, and capacitors in AC circuits. Resistors allow current to flow in phase with voltage. Inductors cause current to lag 90 degrees behind voltage, while capacitors cause current to lead 90 degrees ahead of voltage. Phasor diagrams are introduced to represent AC quantities and their phase relationships. The concepts of reactance, impedance, and power in AC circuits are also covered.
Introduction to Alternating Currents AC Circuitsxdarlord
This document provides an overview of alternating current (AC) circuits. It discusses the characteristics of AC voltage and current, and how resistors, inductors, and capacitors behave in AC circuits. Key points include:
- AC voltage and current vary sinusoidally with time and can be represented using phasors.
- Resistors are in phase with voltage, inductors cause current to lag 90° behind voltage, and capacitors cause current to lead 90° ahead of voltage.
- Reactance (inductive or capacitive) describes how elements impede current at different frequencies.
- RLC circuits combine these elements, requiring phasor analysis to understand voltage and current relationships. Impedance and
1. The document discusses direct current (DC) and alternating current (AC). DC flows in one direction while AC periodically reverses direction.
2. Simple AC circuits containing a resistor, capacitor, or inductor are examined. A resistor allows both DC and AC. A capacitor blocks DC but allows AC, while an inductor opposes rapid changes in current.
3. Impedance, phase factor, and resonance effects are also covered. Impedance represents the total opposition to current flow. Resonance occurs at the frequency where capacitive and inductive reactances cancel out, producing a maximum current.
Chameli Devi Group of Institution(BEE) (2).pptx10croreviews
The document discusses series resistor-inductor-capacitor (RLC) circuits, describing how an RLC circuit consists of a resistor, inductor, and capacitor connected in series across an alternating voltage supply. It explains that in an RLC circuit, the voltage drops across each component are out of phase with each other and with the current. The document also covers concepts such as impedance, phasor diagrams, resonance, frequency response, time domain response, and applications of series RLC circuits.
This document discusses key attributes of periodic waveforms such as frequency, period, amplitude, and peak value. It defines frequency as the number of cycles per second, and period as the inverse of frequency. Amplitude is the distance from the average to the peak of a sine wave. Peak value is the maximum value with respect to zero. The document also covers the basic sine wave equation, phase shifts, phasor differences, average values, and root mean square (RMS) values.
The document is a presentation about electrical circuits and alternating current. It contains definitions of terms like nodes, steps for determining voltage in a circuit, Norton's theorem for replacing a two-terminal circuit with an equivalent circuit, equations for alternating current, and advantages of AC over DC current. The presentation was given by four students from the Computer Science and Engineering department at Dhaka International University to their lecturer.
This document provides an overview of basics of electrical engineering including AC and DC meters and Kirchhoff's Laws. It discusses various types of meters such as PMMC, moving iron, electrodynamometer, electrostatic, and thermocouple meters. It also explains the working principles of DC and AC meters, DC and AC voltmeters, and Wheatstone bridge circuit. Kirchhoff's current and voltage laws are introduced along with examples of their applications in circuit analysis. Resistance and its dependence on various factors are also covered.
The document discusses the basic theory of capacitors and inductors. It explains that a capacitor stores energy in an electric field between two conducting plates, while an inductor stores energy in a magnetic field produced by current flowing through a coil. The key equations relating voltage, current, charge and time are presented for RC, RL and RLC circuits. Examples of step responses and natural responses are analyzed for RC, RL and RLC circuits under different initial conditions. Combinations of capacitors and inductors in series and parallel are also covered.
Literature Review Basics and Understanding Reference Management.pptxDr Ramhari Poudyal
Three-day training on academic research focuses on analytical tools at United Technical College, supported by the University Grant Commission, Nepal. 24-26 May 2024
This document provides an overview of circuit theory concepts including:
- Electric circuits are interconnections of electrical elements.
- Charge is the most basic quantity and is measured in coulombs. Current is the rate of charge flow measured in amperes.
- Voltage is the energy required to move a unit charge through a circuit element and is measured in volts.
- Power is the rate of energy use/production and is measured in watts.
- Circuit elements include passive (resistors, capacitors, inductors) and active (sources) components. Kirchhoff's laws and Ohm's law govern circuit analysis.
- Nodal and mesh analysis provide systematic techniques for analyzing circuits by
Basic Electrical and Electronics Engineering.pptxLenine8
This document provides an overview of the topics covered in the Basic Electrical Engineering course at Rajeev Gandhi Memorial College of Engineering & Technology. The syllabus includes DC and AC circuits. Key concepts covered are electrical circuit elements like resistors, inductors and capacitors. Kirchhoff's laws for analyzing circuits are also introduced. The document defines various electrical terms and provides expressions for power, energy, resistance and other circuit parameters.
Generator electricals for slideshare (wecompress.com)David P
Generator or Genset electrical components
Generator electrical calculations
Generator type of loads
what is power factor & how it affects the Generator performance
Generator load calculations
1. The document discusses AC circuits and components including inductors, capacitors, resistors, and transformers.
2. Key concepts covered include inductive and capacitive reactance, impedance, phase relationships between voltage and current, and calculations of effective voltage and current.
3. Transformers can be used to step up or down voltages in an AC circuit by changing the ratio of turns in the primary and secondary coils. An ideal transformer does not lose energy.
This document discusses capacitors and inductors in electrical circuits. It explains that capacitors store charge and consist of two conductive plates separated by an insulator. Inductors create a magnetic field when current flows through a coil of wire. The key points are:
1) Capacitance is measured in Farads and relates the amount of charge stored to the voltage. Current leads voltage in a capacitor by 90 degrees.
2) Inductance opposes changes in current. Voltage leads current in an inductor by 90 degrees.
3) Impedance represents the total opposition to current in an AC circuit and can be calculated using resistance, inductive reactance, and capacitive reactance.
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.
This document discusses AC circuits and their components. It covers:
- Calculating inductive and capacitive reactance for inductors and capacitors.
- Phase relationships in circuits with resistance, capacitance, and inductance. Voltage leads or lags current depending on the component.
- Impedance, effective current, power, and resonant frequency calculations for series RLC circuits. Resonance occurs when inductive and capacitive reactances cancel out.
Alternating current signal
AC means Alternating Current and DC means Direct Current. AC and DC are also used when referring to voltages and electrical signals which are not currents! For example: a 12V AC power supply has an alternating voltage (which will make an alternating current flow).
This document provides an overview of alternating current (AC) circuits. It discusses the characteristics of AC voltage and current, including their sinusoidal variation over time. It also examines the behavior of common circuit elements like resistors, inductors, and capacitors in AC circuits. Resistors allow current to flow in phase with voltage. Inductors cause current to lag 90 degrees behind voltage, while capacitors cause current to lead 90 degrees ahead of voltage. Phasor diagrams are introduced to represent AC quantities and their phase relationships. The concepts of reactance, impedance, and power in AC circuits are also covered.
Introduction to Alternating Currents AC Circuitsxdarlord
This document provides an overview of alternating current (AC) circuits. It discusses the characteristics of AC voltage and current, and how resistors, inductors, and capacitors behave in AC circuits. Key points include:
- AC voltage and current vary sinusoidally with time and can be represented using phasors.
- Resistors are in phase with voltage, inductors cause current to lag 90° behind voltage, and capacitors cause current to lead 90° ahead of voltage.
- Reactance (inductive or capacitive) describes how elements impede current at different frequencies.
- RLC circuits combine these elements, requiring phasor analysis to understand voltage and current relationships. Impedance and
1. The document discusses direct current (DC) and alternating current (AC). DC flows in one direction while AC periodically reverses direction.
2. Simple AC circuits containing a resistor, capacitor, or inductor are examined. A resistor allows both DC and AC. A capacitor blocks DC but allows AC, while an inductor opposes rapid changes in current.
3. Impedance, phase factor, and resonance effects are also covered. Impedance represents the total opposition to current flow. Resonance occurs at the frequency where capacitive and inductive reactances cancel out, producing a maximum current.
Chameli Devi Group of Institution(BEE) (2).pptx10croreviews
The document discusses series resistor-inductor-capacitor (RLC) circuits, describing how an RLC circuit consists of a resistor, inductor, and capacitor connected in series across an alternating voltage supply. It explains that in an RLC circuit, the voltage drops across each component are out of phase with each other and with the current. The document also covers concepts such as impedance, phasor diagrams, resonance, frequency response, time domain response, and applications of series RLC circuits.
This document discusses key attributes of periodic waveforms such as frequency, period, amplitude, and peak value. It defines frequency as the number of cycles per second, and period as the inverse of frequency. Amplitude is the distance from the average to the peak of a sine wave. Peak value is the maximum value with respect to zero. The document also covers the basic sine wave equation, phase shifts, phasor differences, average values, and root mean square (RMS) values.
The document is a presentation about electrical circuits and alternating current. It contains definitions of terms like nodes, steps for determining voltage in a circuit, Norton's theorem for replacing a two-terminal circuit with an equivalent circuit, equations for alternating current, and advantages of AC over DC current. The presentation was given by four students from the Computer Science and Engineering department at Dhaka International University to their lecturer.
This document provides an overview of basics of electrical engineering including AC and DC meters and Kirchhoff's Laws. It discusses various types of meters such as PMMC, moving iron, electrodynamometer, electrostatic, and thermocouple meters. It also explains the working principles of DC and AC meters, DC and AC voltmeters, and Wheatstone bridge circuit. Kirchhoff's current and voltage laws are introduced along with examples of their applications in circuit analysis. Resistance and its dependence on various factors are also covered.
The document discusses the basic theory of capacitors and inductors. It explains that a capacitor stores energy in an electric field between two conducting plates, while an inductor stores energy in a magnetic field produced by current flowing through a coil. The key equations relating voltage, current, charge and time are presented for RC, RL and RLC circuits. Examples of step responses and natural responses are analyzed for RC, RL and RLC circuits under different initial conditions. Combinations of capacitors and inductors in series and parallel are also covered.
Literature Review Basics and Understanding Reference Management.pptxDr Ramhari Poudyal
Three-day training on academic research focuses on analytical tools at United Technical College, supported by the University Grant Commission, Nepal. 24-26 May 2024
Embedded machine learning-based road conditions and driving behavior monitoringIJECEIAES
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODELgerogepatton
As digital technology becomes more deeply embedded in power systems, protecting the communication
networks of Smart Grids (SG) has emerged as a critical concern. Distributed Network Protocol 3 (DNP3)
represents a multi-tiered application layer protocol extensively utilized in Supervisory Control and Data
Acquisition (SCADA)-based smart grids to facilitate real-time data gathering and control functionalities.
Robust Intrusion Detection Systems (IDS) are necessary for early threat detection and mitigation because
of the interconnection of these networks, which makes them vulnerable to a variety of cyberattacks. To
solve this issue, this paper develops a hybrid Deep Learning (DL) model specifically designed for intrusion
detection in smart grids. The proposed approach is a combination of the Convolutional Neural Network
(CNN) and the Long-Short-Term Memory algorithms (LSTM). We employed a recent intrusion detection
dataset (DNP3), which focuses on unauthorized commands and Denial of Service (DoS) cyberattacks, to
train and test our model. The results of our experiments show that our CNN-LSTM method is much better
at finding smart grid intrusions than other deep learning algorithms used for classification. In addition,
our proposed approach improves accuracy, precision, recall, and F1 score, achieving a high detection
accuracy rate of 99.50%.
A review on techniques and modelling methodologies used for checking electrom...nooriasukmaningtyas
The proper function of the integrated circuit (IC) in an inhibiting electromagnetic environment has always been a serious concern throughout the decades of revolution in the world of electronics, from disjunct devices to today’s integrated circuit technology, where billions of transistors are combined on a single chip. The automotive industry and smart vehicles in particular, are confronting design issues such as being prone to electromagnetic interference (EMI). Electronic control devices calculate incorrect outputs because of EMI and sensors give misleading values which can prove fatal in case of automotives. In this paper, the authors have non exhaustively tried to review research work concerned with the investigation of EMI in ICs and prediction of this EMI using various modelling methodologies and measurement setups.
ACEP Magazine edition 4th launched on 05.06.2024Rahul
This document provides information about the third edition of the magazine "Sthapatya" published by the Association of Civil Engineers (Practicing) Aurangabad. It includes messages from current and past presidents of ACEP, memories and photos from past ACEP events, information on life time achievement awards given by ACEP, and a technical article on concrete maintenance, repairs and strengthening. The document highlights activities of ACEP and provides a technical educational article for members.
Low power architecture of logic gates using adiabatic techniquesnooriasukmaningtyas
The growing significance of portable systems to limit power consumption in ultra-large-scale-integration chips of very high density, has recently led to rapid and inventive progresses in low-power design. The most effective technique is adiabatic logic circuit design in energy-efficient hardware. This paper presents two adiabatic approaches for the design of low power circuits, modified positive feedback adiabatic logic (modified PFAL) and the other is direct current diode based positive feedback adiabatic logic (DC-DB PFAL). Logic gates are the preliminary components in any digital circuit design. By improving the performance of basic gates, one can improvise the whole system performance. In this paper proposed circuit design of the low power architecture of OR/NOR, AND/NAND, and XOR/XNOR gates are presented using the said approaches and their results are analyzed for powerdissipation, delay, power-delay-product and rise time and compared with the other adiabatic techniques along with the conventional complementary metal oxide semiconductor (CMOS) designs reported in the literature. It has been found that the designs with DC-DB PFAL technique outperform with the percentage improvement of 65% for NOR gate and 7% for NAND gate and 34% for XNOR gate over the modified PFAL techniques at 10 MHz respectively.
Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapte...University of Maribor
Slides from talk presenting:
Aleš Zamuda: Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapter and Networking.
Presentation at IcETRAN 2024 session:
"Inter-Society Networking Panel GRSS/MTT-S/CIS
Panel Session: Promoting Connection and Cooperation"
IEEE Slovenia GRSS
IEEE Serbia and Montenegro MTT-S
IEEE Slovenia CIS
11TH INTERNATIONAL CONFERENCE ON ELECTRICAL, ELECTRONIC AND COMPUTING ENGINEERING
3-6 June 2024, Niš, Serbia
Advanced control scheme of doubly fed induction generator for wind turbine us...IJECEIAES
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
2. George Westinghouse(1846–1914)
2
Electrical & Computer Engineering
Department
NikolaTesla (1856–1943)
and GeorgeWestinghouse
(1846–1914) helped
establish alternating
current as the primary
mode of electricity
transmission and
distribution.
3. Introduction:
Thus far our analysis has been limited for
the most part to dc circuits; those circuits
excited by constant or time-invariant
sources.
We now begin the analysis of circuits in
which the source voltage or current is time-
varying.
In this chapter, we are particularly interested
in sinusoidally time-varying excitation, or
simply, excitation by a sinusoid.
3
Electrical & Computer Engineering
Department
4. Introduction:
A sinusoid is a signal that has the form of
the sine or cosine function.
A sinusoidal current is usually referred to as
alternating current (ac).
Such a current reverses at regular time
intervals and has alternately positive and
negative values.
Circuits driven by sinusoidal current, or
voltage sources are called ac circuits
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5. Sinusoids
Consider the sinusoidal voltage
Where;
Vm = is the amplitude of the sinusoid
ωt = is the argument of the sinusoid
ω = the angular frequency in radians/s
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6. Sinusoids
V(t) repeats itself everyT seconds
Hence;
A periodic function is one that satisfies
f(t) = f(t+nT ), for all t and for all integers n.
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7. Sinusoids
more general expression for the sinusoid,
where ;
(ωt + φ) is the argument and φ is the
phase.
Both argument and phase can be in
radians or degrees.
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9. Sinusoids
The starting point of v2 in Figure occurs first in
time. Therefore, we say that v2 leads v1 by φ or
that v1 lags v2 by φ
we also say that v1and v2 are out of phase.
If φ = 0 then V1 and v2 are said to be in phase.
A sinusoid can be expressed in either sine or
cosine form
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11. Example 1
Find the amplitude, phase, period, and
frequency of a sinusoid:
Solution:
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12. Example 2
Calculate the phase angle between
and v2=
In order to compare v1 and v2 we must
express them in the same form. If we express
them in cosine form with positive amplitudes
Solution:
V2 leadsV1 by 30 degree
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13. Phasors
A phasor is a complex number that represents
the amplitude and phase of a sinusoid.
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A complex number z can be written in
rectangular form as
Phasors provide a simple means of analyzing
linear circuits excited by sinusoidal sources;
14. Phasors
It can also be written in phasor or
exponential form
Where;
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16. Phasors
Addition and subtraction of complex numbers
are better performed in rectangular form;
multiplication and division are better done in
polar form.
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Addition:
Subtraction:
20. Example
Find the sinusoids corresponding to these
phasors:
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12j -j^2 5 but j^2= -1
i=5+12j
21. Example
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Here is an important use of phasors for summing
sinusoids of the same frequency.
I2 in cosine form:
Phasor form
Solution:
Current I1is in the standard form.
Its phasor is:
23. Phasor Relationships for Circuit
Elements
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Resister
If the current through
the resister is:
The phasor form of the
voltage
24. Phasor Relationships for Circuit
Elements
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Inductor For the inductor L, assume
the current through it is
25. Phasor Relationships for Circuit
Elements
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The voltage and current are out of phase by 90˚
And the current lags from the voltage by 90˚
26. Phasor Relationships for Circuit
Elements
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Capacitor :
For the capacitor C, assume the voltage across it
is
The voltage and current are out of phase by 90˚
And the current leads the voltage by 90˚
27. Phasor Relationships for Circuit
Elements
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Summary for voltage current relationship
28. Example:
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The voltage v=12cos(60t + 45˚) is applied to a
0.1-H inductor. Find the steady-state current
through the inductor
29. Exercise
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If voltage v=10cos(100t+30˚) is applied to a 50μF
capacitor, calculate the current through the
capacitor.
30. Impedance and Admittance
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The impedance Z of a circuit is the ratio of the
phasor voltage V to the phasor current I,
measured in ohms (Ω).
As a complex quantity
31. Impedance and Admittance
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where R= Re Z is the resistance and X= Im Z is
the reactance
The AdmittanceY is the reciprocal of
impedance, measured in Siemens(S)
36. Effective or RMSValue
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The Effective value of a periodic current is the
dc current that delivers the same average power
to a resistor as the periodic current.
37. Effective or RMSValue
The average power absorved by resister in AC
circuit
Power absorbed in Dc circuit:
Equating the above expression and calculate for
Ieff
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38. Effective or RMSValue
The effective value is the (square) root of
the mean(or average) of the square of
the periodic signal.
Thus, the effective value is often known as
the root-mean-square value, or rms
value for short.
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39. Effective or RMSValue
For periodic function X(t) in general;
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The effective value of a periodic signal is its
root mean square (rms) value.
For the sinusoid , the
effective or rms value is
41. Effective or RMSValue
Average power in terms of RMS value
Average power absorbed by resister R
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42. Effective or RMSValue
When a sinusoidal voltage or current is
specified, it is often in terms of its maximum
(or peak) value or its rms value, since its
average value is zero.
The power industries specify phasor
magnitudes in terms of their RMS values
rather than peak values
For instance, the 220V available at every
household is the rms value of the voltage
from the power company.
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43. AC power Analysis
Power analysis is of paramount importance.
Power is the most important quantity in electric
utilities, electronic, and communication systems,
because such systems involve transmission of
power from one point to another.
Every industrial and household electrical device
i.e. every fan, motor, lamp, pressing iron,TV,
personal computer has a power rating that
indicates how much power the equipment
requires.
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44. AC power Analysis
exceeding the power rating can do
permanent damage to an appliance.
The most common form of electric
power is 50- or 60-Hz ac power.
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45. Instantaneous and Average Power
The instantaneous power (in watts) is the
power at any instant of time.
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It is the rate at which an element absorbs
energy.
Let the voltage and current at the terminals of
the circuit be:
46. Instantaneous and Average Power
The instantaneous power:
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Applying trigonometry:
47. Instantaneous and Average Power
The instantaneous power has two parts.
The first part is constant or time
independent. Its value depends on the
phase difference between the voltage and
the current.
The second part is a sinusoidal function
whose frequency is twice the angular
frequency of the voltage or current.
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48. Instantaneous and Average Power
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Figure: The instantaneous power entering a circuit.
49. Instantaneous and Average Power
The instantaneous power changes with
time and is therefore difficult to measure.
The average power is more convenient to
measure.
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The Average power, in watts, is the average of
the instantaneous power over one period.
Thus, the average power is given by
51. Instantaneous and Average Power
The first integrand is constant, and the average
of a constant is the same constant.
The second integrand is a sinusoid.We know
that the average of a sinusoid over its period is
zero.
Hence, the average power;
NB:
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52. Instantaneous and Average Power
The phasor forms of v(t) and i(t)
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The real part is the average power P
Instantaneous power in phasor form
53. Instantaneous and Average Power
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Two special cases
i. The voltage & current are in phase i.e. vi
Which implies resistive load (i.e. R)
ii. When
Purely reactive circuit (i.e. L or C)