Pub Date : 2013-06-13DOI: 10.1109/ICPEC.2013.6527760
R. Jayapragash, C. Chellamuthu
This paper presents analysis of a Switched Reluctance Machine (SRM) operated as a motor and generator for various operating conditions using Finite Element Analysis (FEA). Based on the data of flux linkage and torque obtained using FEA, the inductance value is calculated. Also developed a SRM model in the MATLAB/Simulink environment. While an Asymmetric Half Bridge Converter (AHBC) is used for excitation in the motor mode operation, the problem of using the same converter during generator mode is vividly explained.
{"title":"Analysis of switched reluctance machine using FEA for renewable energy system","authors":"R. Jayapragash, C. Chellamuthu","doi":"10.1109/ICPEC.2013.6527760","DOIUrl":"https://doi.org/10.1109/ICPEC.2013.6527760","url":null,"abstract":"This paper presents analysis of a Switched Reluctance Machine (SRM) operated as a motor and generator for various operating conditions using Finite Element Analysis (FEA). Based on the data of flux linkage and torque obtained using FEA, the inductance value is calculated. Also developed a SRM model in the MATLAB/Simulink environment. While an Asymmetric Half Bridge Converter (AHBC) is used for excitation in the motor mode operation, the problem of using the same converter during generator mode is vividly explained.","PeriodicalId":176900,"journal":{"name":"2013 International Conference on Power, Energy and Control (ICPEC)","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117114010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-06-13DOI: 10.1109/ICPEC.2013.6527741
R. Nagarajan, M. Saravanan
In this paper, novel pulse width modulation technique which use staircase carrier waveform is proposed for nine level cascaded inverter. In staircase carrier waveform, different techniques such as phase disposition (PD), inverted phase disposition (IPD), phase opposition disposition (POD) and alternative phase opposition disposition (APOD) are implemented. The fundamental output voltage and harmonics obtained in each method are compared with the output waveform obtained with the triangular carrier waveform. The proposed switching technique enhances the fundamental component of the output voltage and improves total harmonic distortion. The different PWM methodologies adopting the constant switching frequency multicarrier are simulated for a 1KW, 3φ inverter using MATLAB/SIMULINK. The effect of switching frequency on the fundamental output voltage and harmonics are also analyzed.
{"title":"Staircase multicarrier SPWM technique for nine level cascaded inverter","authors":"R. Nagarajan, M. Saravanan","doi":"10.1109/ICPEC.2013.6527741","DOIUrl":"https://doi.org/10.1109/ICPEC.2013.6527741","url":null,"abstract":"In this paper, novel pulse width modulation technique which use staircase carrier waveform is proposed for nine level cascaded inverter. In staircase carrier waveform, different techniques such as phase disposition (PD), inverted phase disposition (IPD), phase opposition disposition (POD) and alternative phase opposition disposition (APOD) are implemented. The fundamental output voltage and harmonics obtained in each method are compared with the output waveform obtained with the triangular carrier waveform. The proposed switching technique enhances the fundamental component of the output voltage and improves total harmonic distortion. The different PWM methodologies adopting the constant switching frequency multicarrier are simulated for a 1KW, 3φ inverter using MATLAB/SIMULINK. The effect of switching frequency on the fundamental output voltage and harmonics are also analyzed.","PeriodicalId":176900,"journal":{"name":"2013 International Conference on Power, Energy and Control (ICPEC)","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126711177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-06-13DOI: 10.1109/ICPEC.2013.6527674
N. Sivasankar, S. Gayathri, S. Vishnupriya
In this Paper, the method of achieving steep step up and Step down voltage is implemented with the help switched capacitor structures. When the active switch of the converter is on, the capacitors in the C-switching blocks are discharged in parallel. When the active switch is off, the capacitors in the C-switching blocks are charged in series. The proposed converters contain the same rating of elements as the quadratic converters. The superiority of the new converters is mainly based on less energy in the magnetic field, leading to saving in the size and cost of the inductors, and less current Stresses in the switching elements, leading to smaller conduction losses.
{"title":"Design and simulation of open and closed loop control for transformerless DC-DC buck-boost converter using switched-capacitor structure","authors":"N. Sivasankar, S. Gayathri, S. Vishnupriya","doi":"10.1109/ICPEC.2013.6527674","DOIUrl":"https://doi.org/10.1109/ICPEC.2013.6527674","url":null,"abstract":"In this Paper, the method of achieving steep step up and Step down voltage is implemented with the help switched capacitor structures. When the active switch of the converter is on, the capacitors in the C-switching blocks are discharged in parallel. When the active switch is off, the capacitors in the C-switching blocks are charged in series. The proposed converters contain the same rating of elements as the quadratic converters. The superiority of the new converters is mainly based on less energy in the magnetic field, leading to saving in the size and cost of the inductors, and less current Stresses in the switching elements, leading to smaller conduction losses.","PeriodicalId":176900,"journal":{"name":"2013 International Conference on Power, Energy and Control (ICPEC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125220391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-06-13DOI: 10.1109/ICPEC.2013.6527726
R. Ramya, K. Selvi, S. Nivethitha
In this paper the excitation control (AVR) for synchronous generator has been developed using PID controller. Optimal tuning of Proportional-Integral-Derivative (PID) controller parameters is necessary for the satisfactory operation of Automatic Voltage Regulator system. Hence, Real coded Genetic Algorithm is used as optimization technique for tuning optimal values of PID controller parameters (Kp, Ki, and Kd). The optimal PID gains are obtained by the proposed GA for various operating condition and the performance of the system is compared with Fuzzy controller and Ziegler-Nichols method and are tested under perturbations. The suitability of the proposed approach for PID controller tuning has been demonstrated through computer simulations in an AVR system.
{"title":"Optimization of synchronous generator excitation controller parameters","authors":"R. Ramya, K. Selvi, S. Nivethitha","doi":"10.1109/ICPEC.2013.6527726","DOIUrl":"https://doi.org/10.1109/ICPEC.2013.6527726","url":null,"abstract":"In this paper the excitation control (AVR) for synchronous generator has been developed using PID controller. Optimal tuning of Proportional-Integral-Derivative (PID) controller parameters is necessary for the satisfactory operation of Automatic Voltage Regulator system. Hence, Real coded Genetic Algorithm is used as optimization technique for tuning optimal values of PID controller parameters (Kp, Ki, and Kd). The optimal PID gains are obtained by the proposed GA for various operating condition and the performance of the system is compared with Fuzzy controller and Ziegler-Nichols method and are tested under perturbations. The suitability of the proposed approach for PID controller tuning has been demonstrated through computer simulations in an AVR system.","PeriodicalId":176900,"journal":{"name":"2013 International Conference on Power, Energy and Control (ICPEC)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115168405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-06-13DOI: 10.1109/ICPEC.2013.6527632
N. Rawat, A. Bhatt, P. Aswal
In this paper, we discuss and study about the facts devices which are used in power system. These facts devices are applied to enhance and maintain different parameters such as generation cost, transmission losses, system security and voltage stability in power system. These facts devices are optimized with the help of different techniques. In this proposed work, we will go through several research papers which are on the basis of optimization of parameters of facts devices to control and analyze the various parameters of ac transmission system.
{"title":"A review on optimal location of FACTS devices in AC transmission system","authors":"N. Rawat, A. Bhatt, P. Aswal","doi":"10.1109/ICPEC.2013.6527632","DOIUrl":"https://doi.org/10.1109/ICPEC.2013.6527632","url":null,"abstract":"In this paper, we discuss and study about the facts devices which are used in power system. These facts devices are applied to enhance and maintain different parameters such as generation cost, transmission losses, system security and voltage stability in power system. These facts devices are optimized with the help of different techniques. In this proposed work, we will go through several research papers which are on the basis of optimization of parameters of facts devices to control and analyze the various parameters of ac transmission system.","PeriodicalId":176900,"journal":{"name":"2013 International Conference on Power, Energy and Control (ICPEC)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132547228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-06-13DOI: 10.1109/ICPEC.2013.6527712
T. Sridevi, K. Reddy, N. Syamala
This paper presents, analysis of magnetizing inrush current for different voltage angles and harmonic analysis of that inrush current using different FFT windowing techniques. Time domain simulations were used to solve the inrush phenomenon. Square, Welch, Hanning and Parzen windows were used to truncate the obtained inrush current harmonic spectrum for investigation and with parzen windowing the harmonic magnitude is getting reduced due to its reduced side lobes. Inrush current harmonic spectrum obtained by using FFT algorithm in turn discrete fourier transform. Out of different solvers to solve state equation, ode23t solver is used. For an unloaded single phase transformer, inrush current in time domain and harmonic content of inrush current were presented. The results are helpful to estimate harmonics effects in the transformer inrush currents. The results establish a guide line for harmonic elimination due to inrush current and offer an important reference for system design.
{"title":"Harmonic analysis of inrush current using fast fourier transform","authors":"T. Sridevi, K. Reddy, N. Syamala","doi":"10.1109/ICPEC.2013.6527712","DOIUrl":"https://doi.org/10.1109/ICPEC.2013.6527712","url":null,"abstract":"This paper presents, analysis of magnetizing inrush current for different voltage angles and harmonic analysis of that inrush current using different FFT windowing techniques. Time domain simulations were used to solve the inrush phenomenon. Square, Welch, Hanning and Parzen windows were used to truncate the obtained inrush current harmonic spectrum for investigation and with parzen windowing the harmonic magnitude is getting reduced due to its reduced side lobes. Inrush current harmonic spectrum obtained by using FFT algorithm in turn discrete fourier transform. Out of different solvers to solve state equation, ode23t solver is used. For an unloaded single phase transformer, inrush current in time domain and harmonic content of inrush current were presented. The results are helpful to estimate harmonics effects in the transformer inrush currents. The results establish a guide line for harmonic elimination due to inrush current and offer an important reference for system design.","PeriodicalId":176900,"journal":{"name":"2013 International Conference on Power, Energy and Control (ICPEC)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134217602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-06-13DOI: 10.1109/ICPEC.2013.6527733
N. Patil, Y. Bhosle
This paper offers a thought of the recent techniques used in wind energy conversion systems, their differentiation, and choice of generators. Additionally, the opposite crucial element within the WECS, the most objective of this paper is to survey the recent different methodologies utilized in the wind a generation process to offer high potency and higher performance in the wind generation process. Their square measure differing type of turbine ideas is developed. Currently, every day, the wind movement turns around game plan is received to be loads of price-aggressive, so correlations of varying generator framework's square measure important. To begin with, the progressive wind turbine units of estimation grouped.
{"title":"A review on wind turbine generator topologies","authors":"N. Patil, Y. Bhosle","doi":"10.1109/ICPEC.2013.6527733","DOIUrl":"https://doi.org/10.1109/ICPEC.2013.6527733","url":null,"abstract":"This paper offers a thought of the recent techniques used in wind energy conversion systems, their differentiation, and choice of generators. Additionally, the opposite crucial element within the WECS, the most objective of this paper is to survey the recent different methodologies utilized in the wind a generation process to offer high potency and higher performance in the wind generation process. Their square measure differing type of turbine ideas is developed. Currently, every day, the wind movement turns around game plan is received to be loads of price-aggressive, so correlations of varying generator framework's square measure important. To begin with, the progressive wind turbine units of estimation grouped.","PeriodicalId":176900,"journal":{"name":"2013 International Conference on Power, Energy and Control (ICPEC)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133822951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-06-13DOI: 10.1109/ICPEC.2013.6527656
K. Andanapalli, B. Varma
This paper presents a travelling wave based fault location algorithm for teed circuits using unsynchronized measurements. Wavelets transform is used for analyzing power system fault transients in order to capture the travel time of the transients along the monitored lines between the fault point and relays. The proposed method is based on techniques developed earlier for two terminal lines. The fault location is determined by taking time difference between arrival of the backward and forward travelling waves for synchronized measurements. An analytical procedure is applied for synchronization of signals. The algorithm gives accurate results for the three terminal lines under different fault conditions. The performance of the algorithm is tested in MATLAB environment.
{"title":"Travelling wave based fault location for teed circuits using unsynchronised measurements","authors":"K. Andanapalli, B. Varma","doi":"10.1109/ICPEC.2013.6527656","DOIUrl":"https://doi.org/10.1109/ICPEC.2013.6527656","url":null,"abstract":"This paper presents a travelling wave based fault location algorithm for teed circuits using unsynchronized measurements. Wavelets transform is used for analyzing power system fault transients in order to capture the travel time of the transients along the monitored lines between the fault point and relays. The proposed method is based on techniques developed earlier for two terminal lines. The fault location is determined by taking time difference between arrival of the backward and forward travelling waves for synchronized measurements. An analytical procedure is applied for synchronization of signals. The algorithm gives accurate results for the three terminal lines under different fault conditions. The performance of the algorithm is tested in MATLAB environment.","PeriodicalId":176900,"journal":{"name":"2013 International Conference on Power, Energy and Control (ICPEC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125080605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-06-13DOI: 10.1109/ICPEC.2013.6527630
P. Bakkiavathi, C. Rajan
Developing active series compensation in transmission systems is challenging due to the large currents and voltage capabilities requirement. The main purpose of this paper is to show that the magnetic energy recovery switch (MERS) can be an attractive new series compensator by applying appropriate control. The MERS is similar to a single-phase full bridge, meaning that compared to the gate-commutated series capacitor, it has twice the number of active switches. However, advantages, such as the double voltage-current operating range, eliminating the need for reverse blocking switches, zero current turn-on, and a lower current conduction period of each switch can make the MERS an attractive alternative. The basic characteristics of the MERS have been found to be similar to a series connection of a voltage source and a capacitor in steady state. With this dual characteristic, a control method has been suggested, where the minimization of the harmonics in the series-injected voltage and stable operation during large setpoint changes have been achieved. The resulting subharmonic characteristic also indicates a low risk of subsynchronous resonance.
{"title":"Performance of magnetic energy recovery switch as a series FACTS controller","authors":"P. Bakkiavathi, C. Rajan","doi":"10.1109/ICPEC.2013.6527630","DOIUrl":"https://doi.org/10.1109/ICPEC.2013.6527630","url":null,"abstract":"Developing active series compensation in transmission systems is challenging due to the large currents and voltage capabilities requirement. The main purpose of this paper is to show that the magnetic energy recovery switch (MERS) can be an attractive new series compensator by applying appropriate control. The MERS is similar to a single-phase full bridge, meaning that compared to the gate-commutated series capacitor, it has twice the number of active switches. However, advantages, such as the double voltage-current operating range, eliminating the need for reverse blocking switches, zero current turn-on, and a lower current conduction period of each switch can make the MERS an attractive alternative. The basic characteristics of the MERS have been found to be similar to a series connection of a voltage source and a capacitor in steady state. With this dual characteristic, a control method has been suggested, where the minimization of the harmonics in the series-injected voltage and stable operation during large setpoint changes have been achieved. The resulting subharmonic characteristic also indicates a low risk of subsynchronous resonance.","PeriodicalId":176900,"journal":{"name":"2013 International Conference on Power, Energy and Control (ICPEC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133886628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-06-13DOI: 10.1109/ICPEC.2013.6527757
S. Nayak, D. N. Gaonkar
The hybrid fuel cell and microturbine based distributed generation(DG) systems are predicted to play an important role in power distribution network in the near future. There are several models of hybrid DG sources such as, wind turbine generation with photovoltaic, tidal with geothermal, fuel cell with gas turbine, stealing engine with fly wheel and many more. Among all these source of DG fuel cell and microturbines are the well suitable hybrid DG system due to their power matching, size and operational relation. This paper presents the current status and future development of hybrid fuel cell and microturbine generation system and the research work of various issues related to their interconnection, operation and control in connected to the power distribution network.
{"title":"Modeling and performance analysis of hybrid fuel cell and microturbine based distributed generation system, “A review”","authors":"S. Nayak, D. N. Gaonkar","doi":"10.1109/ICPEC.2013.6527757","DOIUrl":"https://doi.org/10.1109/ICPEC.2013.6527757","url":null,"abstract":"The hybrid fuel cell and microturbine based distributed generation(DG) systems are predicted to play an important role in power distribution network in the near future. There are several models of hybrid DG sources such as, wind turbine generation with photovoltaic, tidal with geothermal, fuel cell with gas turbine, stealing engine with fly wheel and many more. Among all these source of DG fuel cell and microturbines are the well suitable hybrid DG system due to their power matching, size and operational relation. This paper presents the current status and future development of hybrid fuel cell and microturbine generation system and the research work of various issues related to their interconnection, operation and control in connected to the power distribution network.","PeriodicalId":176900,"journal":{"name":"2013 International Conference on Power, Energy and Control (ICPEC)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117178218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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