Pub Date : 2013-06-13DOI: 10.1109/ICPEC.2013.6527614
V. P. Nejila, A. Selvakumar
A fuzzy-logic controller based on hill-climbing method for maximum power point tracking of photovoltaic system is proposed. The features of maximum power point tracker based on conventional hill-climbing algorithm are studied. The new controller incorporates the advantages of hill-climbing algorithm and eliminates its drawbacks. This technique provides fast and accurate convergence to the maximum power point during steady-state and gradually changing weather conditions. The hill-climbing algorithm is implemented using 17 fuzzy control rules. Simulation results are provided to illustrate the validity of the proposed hill-climbing based fuzzy-logic controller.
{"title":"Fuzzy-logic based hill-climbing method for maximum power point tracking in PV systems","authors":"V. P. Nejila, A. Selvakumar","doi":"10.1109/ICPEC.2013.6527614","DOIUrl":"https://doi.org/10.1109/ICPEC.2013.6527614","url":null,"abstract":"A fuzzy-logic controller based on hill-climbing method for maximum power point tracking of photovoltaic system is proposed. The features of maximum power point tracker based on conventional hill-climbing algorithm are studied. The new controller incorporates the advantages of hill-climbing algorithm and eliminates its drawbacks. This technique provides fast and accurate convergence to the maximum power point during steady-state and gradually changing weather conditions. The hill-climbing algorithm is implemented using 17 fuzzy control rules. Simulation results are provided to illustrate the validity of the proposed hill-climbing based fuzzy-logic controller.","PeriodicalId":176900,"journal":{"name":"2013 International Conference on Power, Energy and Control (ICPEC)","volume":"35 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":"132872975","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.2013.6527612
I. Adithyan, N. Mavuduru
Space based solar power system is described. The above system has various subsystems and one of its subsystems, propagation of captured solar energy in the form of electromagnetic waves, is considered here. Various alternatives for the above exist, but Laser is the touted as a promising candidate for such propagation in future. In this paper Transmittance is calculated at different altitudes using the known atmospheric extinction coefficients for the molecular and aerosol components. The analysis is performed for three different wavelengths in infrared region: 1.06, 1.67, 2.17 microns, which happens to be the operating wavelengths for high powered Lasers. Inferences are drawn from the results obtained from the simulation.
{"title":"Space based solar power system: Analysis of atmospheric transmittance for laser beam propagation","authors":"I. Adithyan, N. Mavuduru","doi":"10.1109/ICPEC.2013.6527612","DOIUrl":"https://doi.org/10.1109/ICPEC.2013.6527612","url":null,"abstract":"Space based solar power system is described. The above system has various subsystems and one of its subsystems, propagation of captured solar energy in the form of electromagnetic waves, is considered here. Various alternatives for the above exist, but Laser is the touted as a promising candidate for such propagation in future. In this paper Transmittance is calculated at different altitudes using the known atmospheric extinction coefficients for the molecular and aerosol components. The analysis is performed for three different wavelengths in infrared region: 1.06, 1.67, 2.17 microns, which happens to be the operating wavelengths for high powered Lasers. Inferences are drawn from the results obtained from the simulation.","PeriodicalId":176900,"journal":{"name":"2013 International Conference on Power, Energy and Control (ICPEC)","volume":"30 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":"134550151","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.2013.6527619
A. Mohapatra, B. Nayak, Kanungo Barada Mohanty
This paper compares the different approaches for extraction of PV module parameters. The trust-region-doleg method is proposed here for extraction of five parameters such as series resistance (Rs), shunt resistance (Rp), diode ideality factor (a), dark saturation current (I0) and photo-generated current (Ipv) under standard test conditions (STC). The comparative analysis is made by taking Villalva's iterative method and proposed trust-region-dogleg method. Two parameters Rs and Rp are extracted by Villalva's iterative method whereas all five unknown parameters can be extracted by proposed trust-region-dogleg method. The accuracy of parameters calculation depends on tolerance band and initial conditions are tabulated. The PV module behavior at different temperature and irradiance is also forecasted.
{"title":"Comparative study on single diode photovoltaic module parameter extraction methods","authors":"A. Mohapatra, B. Nayak, Kanungo Barada Mohanty","doi":"10.1109/ICPEC.2013.6527619","DOIUrl":"https://doi.org/10.1109/ICPEC.2013.6527619","url":null,"abstract":"This paper compares the different approaches for extraction of PV module parameters. The trust-region-doleg method is proposed here for extraction of five parameters such as series resistance (Rs), shunt resistance (Rp), diode ideality factor (a), dark saturation current (I0) and photo-generated current (Ipv) under standard test conditions (STC). The comparative analysis is made by taking Villalva's iterative method and proposed trust-region-dogleg method. Two parameters Rs and Rp are extracted by Villalva's iterative method whereas all five unknown parameters can be extracted by proposed trust-region-dogleg method. The accuracy of parameters calculation depends on tolerance band and initial conditions are tabulated. The PV module behavior at different temperature and irradiance is also forecasted.","PeriodicalId":176900,"journal":{"name":"2013 International Conference on Power, Energy and Control (ICPEC)","volume":"55 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":"114852718","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.2013.6527667
A. Agrawal, R. Verma, A. Gupta, A. Jaiswal
This paper present the design of a series resonant inverter with unidirectional switches and its simulation using Multisim circuit simulation software. Also brief technical information is given on resonant converter.
{"title":"Simulation of series resonant inverter with unidirectional switches via multisim","authors":"A. Agrawal, R. Verma, A. Gupta, A. Jaiswal","doi":"10.1109/ICPEC.2013.6527667","DOIUrl":"https://doi.org/10.1109/ICPEC.2013.6527667","url":null,"abstract":"This paper present the design of a series resonant inverter with unidirectional switches and its simulation using Multisim circuit simulation software. Also brief technical information is given on resonant converter.","PeriodicalId":176900,"journal":{"name":"2013 International Conference on Power, Energy and Control (ICPEC)","volume":"259 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":"116060761","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.2013.6527740
R. Shukla, R. K. Tripathi
A sensorless control method for standalone mode operation of doubly fed induction generator is presented. The generated stator voltage is controlled via rotor currents. The stator voltage amplitude of and its frequency are controlled independently. In order to control the amplitude & frequency of stator voltage in stand-alone DFIG based WECS the following studies were carried out, the study and simulation of a Standalone DFIG based Wind Energy Conversion System at constant wind speed was performed, then the transient study for sudden change in wind speed, was done and simulated, the performance of DFIG was observed, when it supplies the isolated (R-L type) load, Analysis of active power pulsations, reactive power pulsations and DC link voltages fluctuations were done.
{"title":"A stand-alone Wind Energy Conversion System using wound rotor induction machine","authors":"R. Shukla, R. K. Tripathi","doi":"10.1109/ICPEC.2013.6527740","DOIUrl":"https://doi.org/10.1109/ICPEC.2013.6527740","url":null,"abstract":"A sensorless control method for standalone mode operation of doubly fed induction generator is presented. The generated stator voltage is controlled via rotor currents. The stator voltage amplitude of and its frequency are controlled independently. In order to control the amplitude & frequency of stator voltage in stand-alone DFIG based WECS the following studies were carried out, the study and simulation of a Standalone DFIG based Wind Energy Conversion System at constant wind speed was performed, then the transient study for sudden change in wind speed, was done and simulated, the performance of DFIG was observed, when it supplies the isolated (R-L type) load, Analysis of active power pulsations, reactive power pulsations and DC link voltages fluctuations were done.","PeriodicalId":176900,"journal":{"name":"2013 International Conference on Power, Energy and Control (ICPEC)","volume":"55 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":"128278744","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.2013.6527706
B. Rajasekhar, A. Chandel
In this paper, differential evolution (DE) algorithm has been proposed to solve a optimal joint placement problem of phasor measurement units (PMUs) and conventional measurements which enable to determine the state variables of the power system. The problem is to minimize the number of PMUs required for network observability and to maximize the PMU measurements redundancy. This is achieved by selecting a solution with maximum System Observability Redundancy Index (SORI)if multiple optimal solutions exist. The resulting nonlinear integer programming (NLIP)problem is solved by the proposed DE method for the optimal solution by considering different power system problems viz. a 7-bus test and IEEE 14-bus systems with and without the consideration of zero injection buses. Results thus obtained have also been validated with existing solution techniques.
{"title":"Joint placement of phasor and power flow measurements for power system observability using differential evolution","authors":"B. Rajasekhar, A. Chandel","doi":"10.1109/ICPEC.2013.6527706","DOIUrl":"https://doi.org/10.1109/ICPEC.2013.6527706","url":null,"abstract":"In this paper, differential evolution (DE) algorithm has been proposed to solve a optimal joint placement problem of phasor measurement units (PMUs) and conventional measurements which enable to determine the state variables of the power system. The problem is to minimize the number of PMUs required for network observability and to maximize the PMU measurements redundancy. This is achieved by selecting a solution with maximum System Observability Redundancy Index (SORI)if multiple optimal solutions exist. The resulting nonlinear integer programming (NLIP)problem is solved by the proposed DE method for the optimal solution by considering different power system problems viz. a 7-bus test and IEEE 14-bus systems with and without the consideration of zero injection buses. Results thus obtained have also been validated with existing solution techniques.","PeriodicalId":176900,"journal":{"name":"2013 International Conference on Power, Energy and Control (ICPEC)","volume":"1 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":"128414778","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.2013.6527707
S. B. Singh, A. Singh
In this paper, the shortcoming of NEMA definition for performance analysis of induction motor under supply voltage unbalance is presented. It gives a large range of performance variation. In order to make it suitable for the purpose the index is proposed, which along with NEMA definition can be utilized for the reduction of voltage variation and exact assessment of performance of induction motor. The performance of this index along with the NEMA definition is tested for various motor performance indices such as peak stator current, derating factor. The variations in the performance of the motor can be reduced with suggested voltage unbalance index. These facts are investigated by conducting various experiments on MATLAB Simulink software package.
{"title":"Precise assessment of induction motor performance based on NEMA definition","authors":"S. B. Singh, A. Singh","doi":"10.1109/ICPEC.2013.6527707","DOIUrl":"https://doi.org/10.1109/ICPEC.2013.6527707","url":null,"abstract":"In this paper, the shortcoming of NEMA definition for performance analysis of induction motor under supply voltage unbalance is presented. It gives a large range of performance variation. In order to make it suitable for the purpose the index is proposed, which along with NEMA definition can be utilized for the reduction of voltage variation and exact assessment of performance of induction motor. The performance of this index along with the NEMA definition is tested for various motor performance indices such as peak stator current, derating factor. The variations in the performance of the motor can be reduced with suggested voltage unbalance index. These facts are investigated by conducting various experiments on MATLAB Simulink software package.","PeriodicalId":176900,"journal":{"name":"2013 International Conference on Power, Energy and Control (ICPEC)","volume":"6 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":"125980824","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.2013.6527668
K. Premkumar, B. Manikandan
A novel method for speed control of brushless dc motor using adaptive fuzzy logic and PI control algorithms has been presented in this paper. Fuzzy logic and PI controllers are formulated and designed using MATLAB toolbox. The parameters such as rise time, peak overshoot, recovery time, settling time and steady state error of a brushless DC motor are taken for analyzing the performance of the proposed controller. The simulation result demonstrated that the response of brushless dc motor with adaptive fuzzy logic shows satisfactory and well damped performance compared to classical PI controller.
{"title":"Adaptive fuzzy logic speed controller for brushless DC motor","authors":"K. Premkumar, B. Manikandan","doi":"10.1109/ICPEC.2013.6527668","DOIUrl":"https://doi.org/10.1109/ICPEC.2013.6527668","url":null,"abstract":"A novel method for speed control of brushless dc motor using adaptive fuzzy logic and PI control algorithms has been presented in this paper. Fuzzy logic and PI controllers are formulated and designed using MATLAB toolbox. The parameters such as rise time, peak overshoot, recovery time, settling time and steady state error of a brushless DC motor are taken for analyzing the performance of the proposed controller. The simulation result demonstrated that the response of brushless dc motor with adaptive fuzzy logic shows satisfactory and well damped performance compared to classical PI controller.","PeriodicalId":176900,"journal":{"name":"2013 International Conference on Power, Energy and Control (ICPEC)","volume":"25 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":"123608890","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.2013.6527662
A. Chitra, S. Himavathi
This work envisages modeling solar photovoltaic (PV) systems as it is one of the most promising renewable energy source. A mathematical model of the PV system assumes importance as it enables the study of its performance under varying environmental and load conditions so as to assess its suitability for real time applications. To serve this purpose a mathematical model of the PV system has been developed in Matlab. The simulator is modeled to support a large array PV system, so that it can be interfaced with power electronic converters. Also the PV model has been connected with the cascade multilevel inverter (MLI) and the results are presented. The simulation results illustrate that this inverter topology is a right choice for PV applications.
{"title":"Modeling and experimental validation of solar PV system for cascade H-bridge multilevel inverter","authors":"A. Chitra, S. Himavathi","doi":"10.1109/ICPEC.2013.6527662","DOIUrl":"https://doi.org/10.1109/ICPEC.2013.6527662","url":null,"abstract":"This work envisages modeling solar photovoltaic (PV) systems as it is one of the most promising renewable energy source. A mathematical model of the PV system assumes importance as it enables the study of its performance under varying environmental and load conditions so as to assess its suitability for real time applications. To serve this purpose a mathematical model of the PV system has been developed in Matlab. The simulator is modeled to support a large array PV system, so that it can be interfaced with power electronic converters. Also the PV model has been connected with the cascade multilevel inverter (MLI) and the results are presented. The simulation results illustrate that this inverter topology is a right choice for PV applications.","PeriodicalId":176900,"journal":{"name":"2013 International Conference on Power, Energy and Control (ICPEC)","volume":"15 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":"126026335","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.2013.6527675
T. Anuradha, V. Kumar
In this paper, a novel zero voltage switched interleaved flyback converter is proposed for the low power electrical applications that require electrical isolation. The proposed converter adopts the interleaved operation and soft switching technique to reduce the input current ripple, output voltage ripple, the switching losses and reverse recovery losses of diodes resulting in high efficiency. In this paper, the operation and design equations are explained for proposed converter and its performance characteristics are compared with that of conventional hard switched interleaved flyback converter using MATLAB/SIMULINK. It has been demonstrated from the simulation results that the efficiency of the proposed 500W converter is improved by 2.8%.
{"title":"Design and analysis of high efficiency soft switched interleaved flyback converter","authors":"T. Anuradha, V. Kumar","doi":"10.1109/ICPEC.2013.6527675","DOIUrl":"https://doi.org/10.1109/ICPEC.2013.6527675","url":null,"abstract":"In this paper, a novel zero voltage switched interleaved flyback converter is proposed for the low power electrical applications that require electrical isolation. The proposed converter adopts the interleaved operation and soft switching technique to reduce the input current ripple, output voltage ripple, the switching losses and reverse recovery losses of diodes resulting in high efficiency. In this paper, the operation and design equations are explained for proposed converter and its performance characteristics are compared with that of conventional hard switched interleaved flyback converter using MATLAB/SIMULINK. It has been demonstrated from the simulation results that the efficiency of the proposed 500W converter is improved by 2.8%.","PeriodicalId":176900,"journal":{"name":"2013 International Conference on Power, Energy and Control (ICPEC)","volume":"42 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":"123953539","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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