A generalized multilevel inverter topology with reduction of total standing v...Asoka Technologies
This paper presents a new multilevel inverter topology with reduced active switches
and total standing voltage. The proposed topology can generate a high number of voltage levels in the symmetric configuration. This topology intuitively generates positive and negative cycles without an additional H-bridge unit, which considerably reduces the total standing voltage of the inverter. A cascaded structure is developed from the proposed topology to create higher voltage levels. To show the novelty of the proposed topology, a thorough comparison between the available and the proposed topologies in terms of the number of switches, standing voltages, and dc-sources is presented. Furthermore, he power loss analysis is carried out for various load values. The feasibility of the proposed nine-level inverter is verified with simulation and experimental results.
Reactive power compensation in radial distribution systemENGTawfigAlmaliky
In distribution networks reactive power flow causes large voltage drop, high power losses and low power factor. These effects can be reduced by optimally installing of shunt capacitors. Compensation of reactive power presents the basic role in power system planning to provide compatible locations of the compensation apparatus to guarantee the minimum cost of compensation with suitable voltage profiles. The optimal allocations and sizing of capacitors in distribution systems are introduced in this project. First the most candidate buses for installing capacitors are suggested using certain index. Then cost function is used to deduce the locations of capacitors and their sizing from the elected buses. The results are discussed to prove the effectiveness of the suggested algorithm to enhance the voltage profiles for distribution system.
A grid connected hybrid generation system (HGS) consisting of wind energy conversion System (WECS)/Photo voltaic (PV) System/solid oxide fuel cell (SOFC) is designed and simulated by using Matlab/Simulink. SOFC is the replacement of battery, attached to produce the clean energy when these renewable energy sources are unable to produce required amount of electric power. A controller is used to regulate the flow of H2 through the valveto the SOFC and the rest amount of H2 is stored in storage tank. Also, an operational control strategy (OCS) is developed to utilize maximum amount of power of PV to the required load and rest amount of power is coming from wind to fulfill the load demand. Hence, the electrolyzer is supplied by the wind power to convert the water in to H2 and oxygen. Also the power quality factor (PQF) analysis is exercised to measure the quality of power transmission.
A generalized multilevel inverter topology with reduction of total standing v...Asoka Technologies
This paper presents a new multilevel inverter topology with reduced active switches
and total standing voltage. The proposed topology can generate a high number of voltage levels in the symmetric configuration. This topology intuitively generates positive and negative cycles without an additional H-bridge unit, which considerably reduces the total standing voltage of the inverter. A cascaded structure is developed from the proposed topology to create higher voltage levels. To show the novelty of the proposed topology, a thorough comparison between the available and the proposed topologies in terms of the number of switches, standing voltages, and dc-sources is presented. Furthermore, he power loss analysis is carried out for various load values. The feasibility of the proposed nine-level inverter is verified with simulation and experimental results.
Reactive power compensation in radial distribution systemENGTawfigAlmaliky
In distribution networks reactive power flow causes large voltage drop, high power losses and low power factor. These effects can be reduced by optimally installing of shunt capacitors. Compensation of reactive power presents the basic role in power system planning to provide compatible locations of the compensation apparatus to guarantee the minimum cost of compensation with suitable voltage profiles. The optimal allocations and sizing of capacitors in distribution systems are introduced in this project. First the most candidate buses for installing capacitors are suggested using certain index. Then cost function is used to deduce the locations of capacitors and their sizing from the elected buses. The results are discussed to prove the effectiveness of the suggested algorithm to enhance the voltage profiles for distribution system.
A grid connected hybrid generation system (HGS) consisting of wind energy conversion System (WECS)/Photo voltaic (PV) System/solid oxide fuel cell (SOFC) is designed and simulated by using Matlab/Simulink. SOFC is the replacement of battery, attached to produce the clean energy when these renewable energy sources are unable to produce required amount of electric power. A controller is used to regulate the flow of H2 through the valveto the SOFC and the rest amount of H2 is stored in storage tank. Also, an operational control strategy (OCS) is developed to utilize maximum amount of power of PV to the required load and rest amount of power is coming from wind to fulfill the load demand. Hence, the electrolyzer is supplied by the wind power to convert the water in to H2 and oxygen. Also the power quality factor (PQF) analysis is exercised to measure the quality of power transmission.
Capacitor bank and improvement of power factorAhshan Kabir
In these presentation ,we have discussed about power factor, disadvantages of low power factor and how to improve it. Also, capacitor bank and how to install capacitor bank are discussed.
A Technique for Shunt Active Filter meld micro grid SystemIJERA Editor
The proposed system presents a control technique for a micro grid connected hybrid generation system ith case study interfaced with a three phase shunt active filter to suppress the current harmonics and reactive power present in the load using PQ Theory with ANN controller. This Hybrid Micro Grid is developed using freely renewable energy resources like Solar Photovoltaic (SPV) and Wind Energy (WE). To extract the maximum available power from PV panels and wind turbines, Maximum power point Tracker (MPPT) has been included. This MPPT uses the “Standard Perturbs and Observe” technique. By using PQ Theory with ANN Controller, the Reference currents are generated which are to be injected by Shunt active power filter (SAPF)to compensate the current harmonics in the non linear load. Simulation studies shows that the proposed control technique performs non-linear load current harmonic compensation maintaining the load current in phase with the source voltage.
Design and Performance Analysis of Three-Phase Solar PV Integrated UPQCAsoka Technologies
This paper deals with the design and performance analysis of a three-phase single stage solar photovoltaic integrated unified power quality conditioner (PV-UPQC). The PV-UPQC consists of a shunt and series connected voltage compensators connected back to back with common DC-link.The shunt compensator performs the dual function of extracting power from PV array apart from compensating for load current harmonics. An improved synchronous reference frame control based on moving average filter is used for extraction of load active current component for improved performance of the PVUPQC. The series compensator compensates for the grid side power quality problems such as grid voltage sags/swells. The compensator injects voltage in-phase/out of phase with point of common coupling (PCC) voltage during sag and swell conditions respectively. The proposed system combines both the benefits of clean energy generation along with improving power quality. The steady state and dynamic performance of the system are evaluated by simulating in Matlab-Simulink under a nonlinear load. The system performance is then verified using a scaled down laboratory prototype under a number of disturbances such as load unbalancing, PCC voltage sags/swells and irradiation variation.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Accident Detection and Ambulance Triggered Traffic Management SystemsSachin Kumar Asokan
This was a project that I worked on during my undergraduate degree where the main goal was to understand how electrical engineering & technology can impact our daily lives in a resourceful and positive way. This model was picked for a honorable mention in the competition.
Capacitor bank and improvement of power factorAhshan Kabir
In these presentation ,we have discussed about power factor, disadvantages of low power factor and how to improve it. Also, capacitor bank and how to install capacitor bank are discussed.
A Technique for Shunt Active Filter meld micro grid SystemIJERA Editor
The proposed system presents a control technique for a micro grid connected hybrid generation system ith case study interfaced with a three phase shunt active filter to suppress the current harmonics and reactive power present in the load using PQ Theory with ANN controller. This Hybrid Micro Grid is developed using freely renewable energy resources like Solar Photovoltaic (SPV) and Wind Energy (WE). To extract the maximum available power from PV panels and wind turbines, Maximum power point Tracker (MPPT) has been included. This MPPT uses the “Standard Perturbs and Observe” technique. By using PQ Theory with ANN Controller, the Reference currents are generated which are to be injected by Shunt active power filter (SAPF)to compensate the current harmonics in the non linear load. Simulation studies shows that the proposed control technique performs non-linear load current harmonic compensation maintaining the load current in phase with the source voltage.
Design and Performance Analysis of Three-Phase Solar PV Integrated UPQCAsoka Technologies
This paper deals with the design and performance analysis of a three-phase single stage solar photovoltaic integrated unified power quality conditioner (PV-UPQC). The PV-UPQC consists of a shunt and series connected voltage compensators connected back to back with common DC-link.The shunt compensator performs the dual function of extracting power from PV array apart from compensating for load current harmonics. An improved synchronous reference frame control based on moving average filter is used for extraction of load active current component for improved performance of the PVUPQC. The series compensator compensates for the grid side power quality problems such as grid voltage sags/swells. The compensator injects voltage in-phase/out of phase with point of common coupling (PCC) voltage during sag and swell conditions respectively. The proposed system combines both the benefits of clean energy generation along with improving power quality. The steady state and dynamic performance of the system are evaluated by simulating in Matlab-Simulink under a nonlinear load. The system performance is then verified using a scaled down laboratory prototype under a number of disturbances such as load unbalancing, PCC voltage sags/swells and irradiation variation.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Accident Detection and Ambulance Triggered Traffic Management SystemsSachin Kumar Asokan
This was a project that I worked on during my undergraduate degree where the main goal was to understand how electrical engineering & technology can impact our daily lives in a resourceful and positive way. This model was picked for a honorable mention in the competition.
An enhanced method for human life rescue systemeSAT Journals
Abstract
In the Modern World, Traffic is one of the main problem in our daily life. During Emergency conditions Vehicles like Ambulances
and Fire Controllers are delayed to reach their destination due to the Traffic Jams. Every one minute there will be an accident in
India, which causes loss of lives. This is a wireless module system which generates information from the accident zone to the
ambulance facility very quickly. Traffic blocking and management of free movement of vehicles were recognized as major
problem in modern urban areas. The accidents in the city have been increased due to negligible of rules and rise in motor
vehicles leads to the loss of life. The main idea behind this system is to endow with a flow for the rescue vehicles to reach the
hospitals in moment. The novelty in this paper is to manage the traffic signals in the alleyway of the rescue vehicle. This scheme is
fully programmed, thus it finds the accident point, to be in command of traffic lights, helps to reach the hospital in instance.
Keywords: SMAC, HLRS, etc
This slideshare is a brief review of the medical alert company, Rescue Alert. It'll go over their basic services, features, prices and other important details.
Contents-
Electricity, Types of Electricity, Resistance, Ohms law, Volt, Voltmeter, Ammeter, Potential Differnce, Electric current, Electric circuit, etc.
Complete description of piezoelectric sensors along with diagrams for better understanding. It is beneficial for any college student who is making a project or presentation on piezoelectric sensors. For presentation on this topic please drop by my uploaded presentations.
Comparison between piezoelectric transformer and electromagnetic transformer ...TELKOMNIKA JOURNAL
This paper presents study, modeling and simulation of the piezoelectric material works as transformer (piezoelectric transformer (PT)) in power electronic circuits, comparisons are made with the regular transformer (iron core) works in the same circuit, the tested circuit is the full bridge converter which used in the simulation as dc power supply circuit. As a result, a detailed simulation for both the piezoelectric transformer and traditional transformer are achieved, as well as the output voltage from the dc power supply is tested by varying the load resistance. The dc power supply circuit has been simulated using PSIM (V9.1) power electronic circuit simulation software.
Its an simple slide through which one could know about energy harvesting through piezo electricity and their future scope.It details about the profit of laying piezo roads through an example.
Piezo is a Greek word derived from “piezein”, which means press or squeeze. Therefore, piezoelectricity means squeezing electricity. Piezoelectricity is the ability of certain crystalline materials to develop an electric charge proportional to a mechanical stress. Materials showing this phenomenon also show the reverse, deformation proportional to an applied voltage.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Computational Engineering Research(IJCER)ijceronline
International Journal of Computational Engineering Research(IJCER) is an intentional online Journal in English monthly publishing journal. This Journal publish original research work that contributes significantly to further the scientific knowledge in engineering and Technology.
Harnessing of power on highways and railways using PIEZOELECTRIC SENSORSRohith Raj
This ppt gives a basic idea on how piezoelectric sensors work,and how they can be used for generating electricity.It also includes a circuit diagram on how the connections need to be made
Piezoelectric effect is the effect of converting pressure into electricity. There is a specific type of material which converts the pressure/deformity in the size into electricity.
various types of flow meter
1. rotameter
2. venturimeter
3. electromagnetic flow meter
4. positive displacement flow meter
with their working advantage and disadvantages
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.
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.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
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.
2. TRANSDUCERS
A TRANSDUCER MAY BE DEFINED AS A DEVICE THAT
CONVERTS ENERGY FROM ONE FORM TO ANOTHER
FORM.
ENERGY TRANSMISION CAN BE ELECTRICAL
, MECHANICAL , CHEMICAL B, OPTICAL , THERMAL
, NUCLEAR , ACOUSTICAL OR A COMBINATION OF ANY
TWO OR MORE .
IT IS OFTEN VERY CONVENIENT TO MAKE
MEASUREMENTS IN TERMS OF ELECTRICAL QUANTITIES
SUCH AS VOLTAGE OR CURRENT AND EASE IN
3. PIEZOELECTRIC PRESSURE
TRANSDUCERS
• THESE DEVICE UTILIZE THE PIEZOELECTRIC
CHARACTERISTICS OF CERTAIN CRYSTALLINE
AND CERAMIC MATERIALS (SUCH AS QUARTZ) TO
GENERATE AN ELECTRICAL SIGNAL.
4. PRINCIPLE
WHEN PRESSURE IS APPLIED ON CRYSTAL , AN ELECTRICAL
CHARGE IS GENERATED.
SOME OF THE PIEZOELECTRIC MATERIALS ARE BARRIUM
TITANATE SINTERED POWDER , CRYSTAL OF QUARTZ ,
TOURMALINE, AND ROCHELLE SALTS.
5. CONSTRUCTION AND WORKING
oCONSTRUCTION
IT CONSISTS OF A DIAPHRAGM BY WHICH PRESSURE IS
TRANSMITTED TO THE PIEZOELECTRIC CRYSTAL Y1. THIS
CRYSTAL GENERATES AN ELECTRICAL SIGNAL WHICH IS
AMPLIFIED BY A CHARGE AMPLIFIER.
A 2ND PIEZOELECTRIC CRYSTAL Y2 IS INCLUDED TO COMPENSATE
6. APPLICATIONS
PRESSURE SENSOR IN THE TOUCH PADS OF MOBILE
PHONES.
TO MEASURE PRESSURE INSIDE THE CYLINDER OF
GASOLINE ENGINE.
IN VARIOUS APPLICATION SUCH AS MEDICAL
,AEROSPACE , NUCLEAR INSTRUMENTATION.
7. ADVANTAGES
I. THE TRANSDUCER NEEDS NO EXTERNAL POWER AND IS
THEREFORE SELF GENERATING.
II. IT HAS A VERY GOOD HIGH FREQUENCY RESPONSE.
III. THOUGH PIEZOELECTRIC SENSORS ARE
ELECTROMECHANICAL SYSTEMS THAT REACT
TO COMPRESSION , THE SENSING ELEMENTS SHOW
ALMOST ZERO DEFLECTION.
8. DISADVANTAGES
I. THIS TYPE OF TRANSDUCER CANNOT MEASURE STATIC
PRESSURE.
II. THE OUTPUT OF THE TRANSDUCER IS AFFECTED BY
CHANGES IN TEMPERATURE. THEREFORE
TEMPERATURE COMPENSATING DEVICES HAS TO BE
USED.
