Pub Date : 2007-11-01DOI: 10.1109/PEDS.2007.4487836
Sufen Chen, Y. Lai, Siew-Chong Tan, C. Tse
This paper proposes a hybrid sliding mode repetitive control scheme that combines both the features of the sliding mode control and the repetitive control to achieve excellent transient and steady-state system performances in voltage source inverters. The principle of equivalent control is adopted to integrate the two methodologies and to facilitate the design and analysis of the proposed scheme. A specific low pass filter is also introduced to improve the transient response of the regulation. Experimental results show that fast dynamical responses are achieved through the sliding mode control, while low harmonic distortions are achieved through the repetitive control.
{"title":"Sliding Mode Repetitive Control of PWM Voltage Source Inverter","authors":"Sufen Chen, Y. Lai, Siew-Chong Tan, C. Tse","doi":"10.1109/PEDS.2007.4487836","DOIUrl":"https://doi.org/10.1109/PEDS.2007.4487836","url":null,"abstract":"This paper proposes a hybrid sliding mode repetitive control scheme that combines both the features of the sliding mode control and the repetitive control to achieve excellent transient and steady-state system performances in voltage source inverters. The principle of equivalent control is adopted to integrate the two methodologies and to facilitate the design and analysis of the proposed scheme. A specific low pass filter is also introduced to improve the transient response of the regulation. Experimental results show that fast dynamical responses are achieved through the sliding mode control, while low harmonic distortions are achieved through the repetitive control.","PeriodicalId":166704,"journal":{"name":"2007 7th International Conference on Power Electronics and Drive Systems","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114097030","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 : 2007-11-01DOI: 10.1109/PEDS.2007.4487726
Hung-Chih Lin, Tsin-Yuan Chang
This paper presents the analysis and design of a sliding mode controller for buck converters operating in discontinuous conduction mode. An adaptive hysteresis band control scheme is proposed to tightly regulate the output voltage under line and load variations. The proposed method can be employed for other dc-dc converters, and therefore the operation range of sliding mode controllers for dc-dc converters can be extended from continuous conduction mode to discontinuous conduction mode. Simulation results are provided to verify the proposed technique.
{"title":"Analysis and Design of a Sliding Mode Controller for Buck Converters Operating in DCM with Adaptive Hysteresis Band Control Scheme","authors":"Hung-Chih Lin, Tsin-Yuan Chang","doi":"10.1109/PEDS.2007.4487726","DOIUrl":"https://doi.org/10.1109/PEDS.2007.4487726","url":null,"abstract":"This paper presents the analysis and design of a sliding mode controller for buck converters operating in discontinuous conduction mode. An adaptive hysteresis band control scheme is proposed to tightly regulate the output voltage under line and load variations. The proposed method can be employed for other dc-dc converters, and therefore the operation range of sliding mode controllers for dc-dc converters can be extended from continuous conduction mode to discontinuous conduction mode. Simulation results are provided to verify the proposed technique.","PeriodicalId":166704,"journal":{"name":"2007 7th International Conference on Power Electronics and Drive Systems","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115129431","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 : 2007-11-01DOI: 10.1109/PEDS.2007.4487715
D. Sakulhirirak, V. Tarateeraseth, W. Khan-ngern, N. Yoothanom
This paper proposes how to analyze and design the line impedance stabilization network (LISN). The details are described component characteristics and how to design air coil inductors in single and multi layers based on a high self resonant frequency response concept. According to the CISPR 16-1 standard, the stabilized impedance 50 Omega of LISN at frequency range 150 kHz to 30 MHz is proved by simulation and experimental results. The proposed LISN is successful design the low cost by compare with commercial LISN. Finally, the performance of the proposed LISN is achieved comparing to CISPR standard and also with commercial LISN.
{"title":"Design of High Performance and Low Cost Line Impedance Stabilization Network for University Power Electronics and EMC Laboratories","authors":"D. Sakulhirirak, V. Tarateeraseth, W. Khan-ngern, N. Yoothanom","doi":"10.1109/PEDS.2007.4487715","DOIUrl":"https://doi.org/10.1109/PEDS.2007.4487715","url":null,"abstract":"This paper proposes how to analyze and design the line impedance stabilization network (LISN). The details are described component characteristics and how to design air coil inductors in single and multi layers based on a high self resonant frequency response concept. According to the CISPR 16-1 standard, the stabilized impedance 50 Omega of LISN at frequency range 150 kHz to 30 MHz is proved by simulation and experimental results. The proposed LISN is successful design the low cost by compare with commercial LISN. Finally, the performance of the proposed LISN is achieved comparing to CISPR standard and also with commercial LISN.","PeriodicalId":166704,"journal":{"name":"2007 7th International Conference on Power Electronics and Drive Systems","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116849085","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 : 2007-11-01DOI: 10.1109/PEDS.2007.4487780
S. Owatchaiphong, C. Carstensen, R. D. De Doncker
Genetic algorithms (GA) have been applied in optimization of machine designs since the first publication in 1975 (J.H. Holland, 1992). In this paper, a practical implementation of this search technique in predesign of switched reluctance machines is presented. An optimized design was found by means of GA based on an objective function for maximizing an average torque of the machine, where dimensions and a thermal loading are specified. Moreover, an auxiliary objective for the most preferable geometries is utilized, well supporting a vector format of the model in GA. The simulation results verified and demonstrated the efficacy of the proposed strategy.
{"title":"Optimization of Predesign of Switched Reluctance Machines Cross Section Using Genetic Algorithms","authors":"S. Owatchaiphong, C. Carstensen, R. D. De Doncker","doi":"10.1109/PEDS.2007.4487780","DOIUrl":"https://doi.org/10.1109/PEDS.2007.4487780","url":null,"abstract":"Genetic algorithms (GA) have been applied in optimization of machine designs since the first publication in 1975 (J.H. Holland, 1992). In this paper, a practical implementation of this search technique in predesign of switched reluctance machines is presented. An optimized design was found by means of GA based on an objective function for maximizing an average torque of the machine, where dimensions and a thermal loading are specified. Moreover, an auxiliary objective for the most preferable geometries is utilized, well supporting a vector format of the model in GA. The simulation results verified and demonstrated the efficacy of the proposed strategy.","PeriodicalId":166704,"journal":{"name":"2007 7th International Conference on Power Electronics and Drive Systems","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124289054","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 : 2007-11-01DOI: 10.1109/PEDS.2007.4487792
A. Moallem, H.M. Teshnizi, M. Zolghadri
In this paper, a unified hybrid vector control of vector modulated VIENNA I rectifier is presented. Feedback linearization technique is used for the DC-link voltage control. For this purpose, at first a mathematical model of the VIENNA I rectifier is derived. Using this model, it is shown that the dynamic of the rectifier falls into two categories; linear inner dynamic which consists of inner current control and neutral-point potential control and nonlinear outer dynamic which consists of the DC-link voltage control. Based on these facts, a hybrid vector control scheme meaning linear vector control of inner dynamics and nonlinear vector control of outer dynamic is devised. Simulations carried out demonstrate the validity of the proposed control scheme. Simulation results are validated via experimental setup results.
{"title":"A DSP-Based Unified Three Phase/Switch/Level Unity Power Factor Rectifier Using Feedback Linearization for DC-Bus Voltage Control","authors":"A. Moallem, H.M. Teshnizi, M. Zolghadri","doi":"10.1109/PEDS.2007.4487792","DOIUrl":"https://doi.org/10.1109/PEDS.2007.4487792","url":null,"abstract":"In this paper, a unified hybrid vector control of vector modulated VIENNA I rectifier is presented. Feedback linearization technique is used for the DC-link voltage control. For this purpose, at first a mathematical model of the VIENNA I rectifier is derived. Using this model, it is shown that the dynamic of the rectifier falls into two categories; linear inner dynamic which consists of inner current control and neutral-point potential control and nonlinear outer dynamic which consists of the DC-link voltage control. Based on these facts, a hybrid vector control scheme meaning linear vector control of inner dynamics and nonlinear vector control of outer dynamic is devised. Simulations carried out demonstrate the validity of the proposed control scheme. Simulation results are validated via experimental setup results.","PeriodicalId":166704,"journal":{"name":"2007 7th International Conference on Power Electronics and Drive Systems","volume":"283 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124530682","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 : 2007-11-01DOI: 10.1109/PEDS.2007.4487683
Andreas Koenig, T. Plum, Peter Fidler, R. D. Doncker
To operate power electronic devices at high ambient temperatures it has to be ensured that the maximum specified junction temperature is not exceeded at any time during operation. This paper presents a method to calculate the actual junction temperature by measuring voltage and current at a power MOSFET during operation of a converter. Based on this temperature, the actual transferred power of a converter can be controlled to ensure a safe operation within the specified temperature limits.
{"title":"On-line Junction Temperature Measurement of CoolMOS Devices","authors":"Andreas Koenig, T. Plum, Peter Fidler, R. D. Doncker","doi":"10.1109/PEDS.2007.4487683","DOIUrl":"https://doi.org/10.1109/PEDS.2007.4487683","url":null,"abstract":"To operate power electronic devices at high ambient temperatures it has to be ensured that the maximum specified junction temperature is not exceeded at any time during operation. This paper presents a method to calculate the actual junction temperature by measuring voltage and current at a power MOSFET during operation of a converter. Based on this temperature, the actual transferred power of a converter can be controlled to ensure a safe operation within the specified temperature limits.","PeriodicalId":166704,"journal":{"name":"2007 7th International Conference on Power Electronics and Drive Systems","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130893219","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 : 2007-11-01DOI: 10.1109/PEDS.2007.4487869
A. Khajeh, J. Moghani, M. Shahbazi
In this paper, a predictive direct torque control (DTC) scheme for split phase induction machine (SPIM) is established. The induction motor has two sets of stator three-phase windings spatially shifted by 30 electrical degrees. The major drawback of SPIMs is occurrence of extra harmonic currents. Thus in the DTC of SPIMs in addition to control of torque and flux we should consider simultaneously minimizing harmonic components of stator current. Predictive DTC along with optimized SVPWM is used in this paper. Simulation results show that in addition to a good dynamic response, current harmonics in this scheme is significantly reduced.
{"title":"An Efficient Direct Torque Control Scheme for Split Phase Induction Motor","authors":"A. Khajeh, J. Moghani, M. Shahbazi","doi":"10.1109/PEDS.2007.4487869","DOIUrl":"https://doi.org/10.1109/PEDS.2007.4487869","url":null,"abstract":"In this paper, a predictive direct torque control (DTC) scheme for split phase induction machine (SPIM) is established. The induction motor has two sets of stator three-phase windings spatially shifted by 30 electrical degrees. The major drawback of SPIMs is occurrence of extra harmonic currents. Thus in the DTC of SPIMs in addition to control of torque and flux we should consider simultaneously minimizing harmonic components of stator current. Predictive DTC along with optimized SVPWM is used in this paper. Simulation results show that in addition to a good dynamic response, current harmonics in this scheme is significantly reduced.","PeriodicalId":166704,"journal":{"name":"2007 7th International Conference on Power Electronics and Drive Systems","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126393663","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 : 2007-11-01DOI: 10.1109/PEDS.2007.4487945
V. Fernão Pires, J. Martins, J. Silva
In this paper, a single stage flyback pfc converter is used as a power supply of a testing distance relay system. The flyback pfc converter topology, operation and control are presented. A fast and robust sliding mode control of the input current is also presented. The sliding mode controller enables also high power factor and nearly sinusoidal input current. The dc output voltage of the converter is controlled by a proportional integral (PI) controller. Simulation and experimental results from a laboratory prototype are presented and discussed.
{"title":"A Single Stage Flyback PFC Converter for Testing Distance Relay Systems","authors":"V. Fernão Pires, J. Martins, J. Silva","doi":"10.1109/PEDS.2007.4487945","DOIUrl":"https://doi.org/10.1109/PEDS.2007.4487945","url":null,"abstract":"In this paper, a single stage flyback pfc converter is used as a power supply of a testing distance relay system. The flyback pfc converter topology, operation and control are presented. A fast and robust sliding mode control of the input current is also presented. The sliding mode controller enables also high power factor and nearly sinusoidal input current. The dc output voltage of the converter is controlled by a proportional integral (PI) controller. Simulation and experimental results from a laboratory prototype are presented and discussed.","PeriodicalId":166704,"journal":{"name":"2007 7th International Conference on Power Electronics and Drive Systems","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126807590","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 : 2007-11-01DOI: 10.1109/PEDS.2007.4487934
K. Vadirajacharya, P. Agarwal, H. Gupta
In recent years there has been considerable interest in the development and application of active power filters using current source active power filters for harmonic filtering. The unbalanced load resulting zero sequence current can affect the performance of shunt active filter adversely. In this paper a novel active, filter control for a three-phase four-wire unbalance system has been designed. This method allows the calculation of the reference current under non-sinusoidal and unbalanced three- phase supply voltage conditions. The proposed filter is based on Akagi's instantaneous power theory (IPT), which are organized in different independent blocks. We introduce a unit vector template to derive fundamental voltage signal from an unbalanced source. The reference currents are then compared with actual source current in a hystersis band controller. Extensive simulation results obtained using MATLAB/SIMULINK under R-L non-linear loading conditions are presented and discussed.
{"title":"Control of Current-Source Active Power Filter using Unit Vector Template in Three Phase Four Wire Unbalnced System","authors":"K. Vadirajacharya, P. Agarwal, H. Gupta","doi":"10.1109/PEDS.2007.4487934","DOIUrl":"https://doi.org/10.1109/PEDS.2007.4487934","url":null,"abstract":"In recent years there has been considerable interest in the development and application of active power filters using current source active power filters for harmonic filtering. The unbalanced load resulting zero sequence current can affect the performance of shunt active filter adversely. In this paper a novel active, filter control for a three-phase four-wire unbalance system has been designed. This method allows the calculation of the reference current under non-sinusoidal and unbalanced three- phase supply voltage conditions. The proposed filter is based on Akagi's instantaneous power theory (IPT), which are organized in different independent blocks. We introduce a unit vector template to derive fundamental voltage signal from an unbalanced source. The reference currents are then compared with actual source current in a hystersis band controller. Extensive simulation results obtained using MATLAB/SIMULINK under R-L non-linear loading conditions are presented and discussed.","PeriodicalId":166704,"journal":{"name":"2007 7th International Conference on Power Electronics and Drive Systems","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127094746","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 : 2007-11-01DOI: 10.1109/PEDS.2007.4487699
P. Randewijk, M. Kamper, R.-J. Wang
In this paper two different concentrated coil configurations for radial flux air-cored permanent magnet (RFAPM) machines are analysed and evaluated against a RFAPM machine that utilises overlapping coils. The comparative analysis of the different machines are done analytically. The analytical results are compared with finite element analysis results of simplified linearised equivalent models for the different coil configurations. The finite element analysis results correlate well with the analytical results in predicting a higher torque factor for small diameter, short stack RFAPM machines with concentrated coil configurations than for machines with overlapping coil configurations, with the same coil side-width values.
{"title":"Analysis and Performance Evaluation of Radial Flux Air-Cored Permanent Magnet Machines with Concentrated Coils","authors":"P. Randewijk, M. Kamper, R.-J. Wang","doi":"10.1109/PEDS.2007.4487699","DOIUrl":"https://doi.org/10.1109/PEDS.2007.4487699","url":null,"abstract":"In this paper two different concentrated coil configurations for radial flux air-cored permanent magnet (RFAPM) machines are analysed and evaluated against a RFAPM machine that utilises overlapping coils. The comparative analysis of the different machines are done analytically. The analytical results are compared with finite element analysis results of simplified linearised equivalent models for the different coil configurations. The finite element analysis results correlate well with the analytical results in predicting a higher torque factor for small diameter, short stack RFAPM machines with concentrated coil configurations than for machines with overlapping coil configurations, with the same coil side-width values.","PeriodicalId":166704,"journal":{"name":"2007 7th International Conference on Power Electronics and Drive Systems","volume":"259 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127542399","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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