Pub Date : 1996-06-23DOI: 10.1109/PESC.1996.548616
J. Lai
This paper describes the design methodology for auxiliary resonant snubber inverters including /spl Delta/- and Y-configured auxiliary resonant snubber inverters. The design emphases are resonant circuit components including inductor, capacitor, end switch, DC link capacitor, and control technique. Design optimization can be aimed at high efficiency, high frequency, low dV/dt, or compact size. An example of designing a three-phase 100 kVA unit is described step by step. Hardware implementation and experimental results are shown for verification.
{"title":"Practical design methodology of auxiliary resonant snubber inverters","authors":"J. Lai","doi":"10.1109/PESC.1996.548616","DOIUrl":"https://doi.org/10.1109/PESC.1996.548616","url":null,"abstract":"This paper describes the design methodology for auxiliary resonant snubber inverters including /spl Delta/- and Y-configured auxiliary resonant snubber inverters. The design emphases are resonant circuit components including inductor, capacitor, end switch, DC link capacitor, and control technique. Design optimization can be aimed at high efficiency, high frequency, low dV/dt, or compact size. An example of designing a three-phase 100 kVA unit is described step by step. Hardware implementation and experimental results are shown for verification.","PeriodicalId":19979,"journal":{"name":"PESC Record. 27th Annual IEEE Power Electronics Specialists Conference","volume":"7 1","pages":"432-437 vol.1"},"PeriodicalIF":0.0,"publicationDate":"1996-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88881184","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 : 1996-06-23DOI: 10.1109/PESC.1996.548705
V. Pires, J. Silva, A. Anunciada
Twelve pulse parallel rectifiers provided with interphase reactors and passive LC output low-pass filters, designed to minimise the input current distortion factor and the output voltage ripple are optimised. A new filter topology is used, where the interphase inductors perform a double function, acting as decoupling reactors and as filter inductors. Adding only three capacitors, it is possible to integrate the output LC filter and the interphase reactors, optimising the rectifier weight, volume and cost. Values for L and C are shown as functions of the minimum current in the continuous mode of operation and of the minimum attenuation specified. Simulation and experimental results are shown.
{"title":"Twelve pulse parallel rectifier with a new topology for the output low-pass filter","authors":"V. Pires, J. Silva, A. Anunciada","doi":"10.1109/PESC.1996.548705","DOIUrl":"https://doi.org/10.1109/PESC.1996.548705","url":null,"abstract":"Twelve pulse parallel rectifiers provided with interphase reactors and passive LC output low-pass filters, designed to minimise the input current distortion factor and the output voltage ripple are optimised. A new filter topology is used, where the interphase inductors perform a double function, acting as decoupling reactors and as filter inductors. Adding only three capacitors, it is possible to integrate the output LC filter and the interphase reactors, optimising the rectifier weight, volume and cost. Values for L and C are shown as functions of the minimum current in the continuous mode of operation and of the minimum attenuation specified. Simulation and experimental results are shown.","PeriodicalId":19979,"journal":{"name":"PESC Record. 27th Annual IEEE Power Electronics Specialists Conference","volume":"46 1","pages":"1006-1011 vol.2"},"PeriodicalIF":0.0,"publicationDate":"1996-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83059054","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 : 1996-06-23DOI: 10.1109/PESC.1996.548704
J. Alonso, C. Blanco, A.J. Calleia, E. López, M. Rico
The aim of this paper is to show the possibilities of the current-clamped resonant inverter as a high intensity discharge (HID) lamp ballast. The steady-state analysis is performed and a prototype for a 150 W high pressure sodium lamp is designed. Prototype implementation, including igniting circuitry, and experimental results are also shown. The proposed topology is oriented to work with a previous PFC stage in order to implement a high-power-factor high-efficiency ballast for HID lamps.
{"title":"Current-clamped resonant inverter: analysis and design as a high pressure sodium lamp ballast","authors":"J. Alonso, C. Blanco, A.J. Calleia, E. López, M. Rico","doi":"10.1109/PESC.1996.548704","DOIUrl":"https://doi.org/10.1109/PESC.1996.548704","url":null,"abstract":"The aim of this paper is to show the possibilities of the current-clamped resonant inverter as a high intensity discharge (HID) lamp ballast. The steady-state analysis is performed and a prototype for a 150 W high pressure sodium lamp is designed. Prototype implementation, including igniting circuitry, and experimental results are also shown. The proposed topology is oriented to work with a previous PFC stage in order to implement a high-power-factor high-efficiency ballast for HID lamps.","PeriodicalId":19979,"journal":{"name":"PESC Record. 27th Annual IEEE Power Electronics Specialists Conference","volume":"73 1","pages":"999-1005 vol.2"},"PeriodicalIF":0.0,"publicationDate":"1996-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80584058","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 : 1996-06-23DOI: 10.1109/PESC.1996.548587
G. Jung, G. Cho, Soon W. Hong, Gyu-Ha Cho
This paper presents a new dual loop control using novel vector product phase locked loop (VP-PLL) for a high power static VAr compensator (SVC) with three-level GTO voltage source inverter (VSl). Through circuit DQ-transformation method, a simple DQ-axis equivalent circuit is obtained. From this, DC analysis is carried out to obtain maximum controllable phase angle /spl alpha//sub max/ per unit current between the three phase source and the switching function of the inverter, and AC open-loop transfer function is given. Because /spl alpha//sub max/ becomes small in high power SVC, this paper proposes VP-PLL for more accurate a control. As a result, the overall control loop has dual loop structure, which consists of inner VP-PLL for synchronizing the phase angle with source and outer Q-loop for compensating reactive power of load. Finally, the validity of the proposed control method is verified through the experimental results.
{"title":"DSP based control of high power static VAr compensator using novel vector product phase locked loop","authors":"G. Jung, G. Cho, Soon W. Hong, Gyu-Ha Cho","doi":"10.1109/PESC.1996.548587","DOIUrl":"https://doi.org/10.1109/PESC.1996.548587","url":null,"abstract":"This paper presents a new dual loop control using novel vector product phase locked loop (VP-PLL) for a high power static VAr compensator (SVC) with three-level GTO voltage source inverter (VSl). Through circuit DQ-transformation method, a simple DQ-axis equivalent circuit is obtained. From this, DC analysis is carried out to obtain maximum controllable phase angle /spl alpha//sub max/ per unit current between the three phase source and the switching function of the inverter, and AC open-loop transfer function is given. Because /spl alpha//sub max/ becomes small in high power SVC, this paper proposes VP-PLL for more accurate a control. As a result, the overall control loop has dual loop structure, which consists of inner VP-PLL for synchronizing the phase angle with source and outer Q-loop for compensating reactive power of load. Finally, the validity of the proposed control method is verified through the experimental results.","PeriodicalId":19979,"journal":{"name":"PESC Record. 27th Annual IEEE Power Electronics Specialists Conference","volume":"34 1","pages":"238-243 vol.1"},"PeriodicalIF":0.0,"publicationDate":"1996-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79232835","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 : 1996-06-23DOI: 10.1109/PESC.1996.548666
P. Petitclair, S. Bacha, J. Rognon
This paper deals with the modelling and control of an advanced static VAr compensator (ASVC) or STATCON. A time invariant model is obtained. This model is used to design an efficient nonlinear control law. Simulations are carried out to validate both the time invariant model and the nonlinear control law.
{"title":"Averaged modelling and nonlinear control of an ASVC (advanced static VAr compensator)","authors":"P. Petitclair, S. Bacha, J. Rognon","doi":"10.1109/PESC.1996.548666","DOIUrl":"https://doi.org/10.1109/PESC.1996.548666","url":null,"abstract":"This paper deals with the modelling and control of an advanced static VAr compensator (ASVC) or STATCON. A time invariant model is obtained. This model is used to design an efficient nonlinear control law. Simulations are carried out to validate both the time invariant model and the nonlinear control law.","PeriodicalId":19979,"journal":{"name":"PESC Record. 27th Annual IEEE Power Electronics Specialists Conference","volume":"9 1","pages":"753-758 vol.1"},"PeriodicalIF":0.0,"publicationDate":"1996-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84639022","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 : 1996-06-23DOI: 10.1109/PESC.1996.548787
J. Seok, Jhoon-Sheok Kim, Jong-Woo Choi, S. Sul
In the overmodulation region, the operation of the electrical drive system with a current controller is characterized by a rapid deterioration of the motor torque and speed. It is desirable to use the overmodulation strategy that extends the normal operating range even in the transient state. In this paper, in order to improve the dynamic characteristics of the electrical drive, a new overmodulation technique is proposed. Considering the current transition characteristic, an efficient overmodulation strategy is introduced to achieve better transient performance through adequate voltage selection. With the help of new overmodulation strategy, the required electrical torque can be directly produced as quickly as possible and stable machine drive characteristics can be achieved even in the transient condition. The proposed method has been implemented on an actual inverter system and thoroughly tested on a 900 W interior permanent magnet synchronous motor (IPMSM) to confirm its feasibility.
{"title":"Overmodulation strategy for high performance torque control","authors":"J. Seok, Jhoon-Sheok Kim, Jong-Woo Choi, S. Sul","doi":"10.1109/PESC.1996.548787","DOIUrl":"https://doi.org/10.1109/PESC.1996.548787","url":null,"abstract":"In the overmodulation region, the operation of the electrical drive system with a current controller is characterized by a rapid deterioration of the motor torque and speed. It is desirable to use the overmodulation strategy that extends the normal operating range even in the transient state. In this paper, in order to improve the dynamic characteristics of the electrical drive, a new overmodulation technique is proposed. Considering the current transition characteristic, an efficient overmodulation strategy is introduced to achieve better transient performance through adequate voltage selection. With the help of new overmodulation strategy, the required electrical torque can be directly produced as quickly as possible and stable machine drive characteristics can be achieved even in the transient condition. The proposed method has been implemented on an actual inverter system and thoroughly tested on a 900 W interior permanent magnet synchronous motor (IPMSM) to confirm its feasibility.","PeriodicalId":19979,"journal":{"name":"PESC Record. 27th Annual IEEE Power Electronics Specialists Conference","volume":"20 1","pages":"1549-1554 vol.2"},"PeriodicalIF":0.0,"publicationDate":"1996-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88602816","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 : 1996-06-23DOI: 10.1109/PESC.1996.548837
A.A. Pereira, E. Coelho, V. J. Farias, J. B. Viera, L. Ca
This paper presents a self resonant PWM full-bridge DC-DC converter using phase shift control. This approach is based in the principle of the self-resonance, that is: an auxiliary voltage source feeds the resonant circuit, charging the capacitor which provides the condition for the zero voltage switching (ZVS) of the main switches. The proposed approach allows building a converter with high power density and high operation efficiency capable of operating over all the load range. The operating principle, theoretical analysis, simulation and experimental results are presented.
{"title":"A lossless commutation PWM full-bridge DC-DC converter using phase shift control","authors":"A.A. Pereira, E. Coelho, V. J. Farias, J. B. Viera, L. Ca","doi":"10.1109/PESC.1996.548837","DOIUrl":"https://doi.org/10.1109/PESC.1996.548837","url":null,"abstract":"This paper presents a self resonant PWM full-bridge DC-DC converter using phase shift control. This approach is based in the principle of the self-resonance, that is: an auxiliary voltage source feeds the resonant circuit, charging the capacitor which provides the condition for the zero voltage switching (ZVS) of the main switches. The proposed approach allows building a converter with high power density and high operation efficiency capable of operating over all the load range. The operating principle, theoretical analysis, simulation and experimental results are presented.","PeriodicalId":19979,"journal":{"name":"PESC Record. 27th Annual IEEE Power Electronics Specialists Conference","volume":"84 1","pages":"1879-1884 vol.2"},"PeriodicalIF":0.0,"publicationDate":"1996-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90605718","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 : 1996-06-23DOI: 10.1109/PESC.1996.548790
Y. Fu, É. Gilson, J.L. Debauche, F. Labrique, H. Buyse
This paper presents a comprehensive analysis of the problems related to the implementation of the motor field oriented control in a fully digital control of a VSI fed PM synchronous motor drive system. All discrete effects involved in this process are taken into account; either they are related to the sampling introduced by the digital controller, or to the use of a PWM inverter as power amplifier. Experimental results confirm the theoretical analysis.
{"title":"Current control in fully digital VSI fed SMPM synchronous motor drive systems","authors":"Y. Fu, É. Gilson, J.L. Debauche, F. Labrique, H. Buyse","doi":"10.1109/PESC.1996.548790","DOIUrl":"https://doi.org/10.1109/PESC.1996.548790","url":null,"abstract":"This paper presents a comprehensive analysis of the problems related to the implementation of the motor field oriented control in a fully digital control of a VSI fed PM synchronous motor drive system. All discrete effects involved in this process are taken into account; either they are related to the sampling introduced by the digital controller, or to the use of a PWM inverter as power amplifier. Experimental results confirm the theoretical analysis.","PeriodicalId":19979,"journal":{"name":"PESC Record. 27th Annual IEEE Power Electronics Specialists Conference","volume":"4 1","pages":"1568-1574 vol.2"},"PeriodicalIF":0.0,"publicationDate":"1996-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90628820","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 : 1996-06-23DOI: 10.1109/PESC.1996.548623
G.A. Karveis, S. Manias
The flyback zero-current switched quasi-resonant AC/DC converter, functioning as a power factor correction regulator, is presented and analyzed in detail in this paper. Only one active switch with simple control logic is required to achieve both input current waveshaping and output voltage regulation. The investigation of voltages and currents in the converter is followed by simulation and leads to a design example in order to verify the theoretical results. Finally, an experimental unit of 120 W was built, which confirmed the analysis and simulated results.
{"title":"Analysis and design of a flyback zero-current switched (ZCS) quasi-resonant (QR) AC/DC converter","authors":"G.A. Karveis, S. Manias","doi":"10.1109/PESC.1996.548623","DOIUrl":"https://doi.org/10.1109/PESC.1996.548623","url":null,"abstract":"The flyback zero-current switched quasi-resonant AC/DC converter, functioning as a power factor correction regulator, is presented and analyzed in detail in this paper. Only one active switch with simple control logic is required to achieve both input current waveshaping and output voltage regulation. The investigation of voltages and currents in the converter is followed by simulation and leads to a design example in order to verify the theoretical results. Finally, an experimental unit of 120 W was built, which confirmed the analysis and simulated results.","PeriodicalId":19979,"journal":{"name":"PESC Record. 27th Annual IEEE Power Electronics Specialists Conference","volume":"102 1","pages":"475-480 vol.1"},"PeriodicalIF":0.0,"publicationDate":"1996-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80600037","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 : 1996-06-23DOI: 10.1109/PESC.1996.548703
Yong-Sik Youn, G. Cho
A regenerative signal amplifying gate driver of a self-excited electronic ballast is presented. It can be used for a high pressure sodium (HPS) lamp without an auxiliary external ignitor. Since the HPS lamp requires very high ignition voltage at start up, the resonant frequency of the circuit must be increased to obtain high voltage oscillations in spite of relatively small resonant current. The presented gate driver amplifies the current of the gate drive transformer and raises the gate-source voltage quickly to turn on the MOSFET switches. Hence, the resonant frequency can be increased more than 100 kHz for large size switching devices. Besides, to protect the ballast from being destroyed, overvoltage/current protection and trigger delay circuits are designed. The HPS lamp used in the simulation and experiment has the rating of 400 W input power at 220 V input AC voltage source. The experiments show that the resonant frequency is above 150 kHz at start up and the inverter stops its operation by the overvoltage/current protection at nearly 3000 V.
{"title":"Regenerative signal amplifying gate driver of self-excited electronic ballast for high pressure sodium (HPS) lamp","authors":"Yong-Sik Youn, G. Cho","doi":"10.1109/PESC.1996.548703","DOIUrl":"https://doi.org/10.1109/PESC.1996.548703","url":null,"abstract":"A regenerative signal amplifying gate driver of a self-excited electronic ballast is presented. It can be used for a high pressure sodium (HPS) lamp without an auxiliary external ignitor. Since the HPS lamp requires very high ignition voltage at start up, the resonant frequency of the circuit must be increased to obtain high voltage oscillations in spite of relatively small resonant current. The presented gate driver amplifies the current of the gate drive transformer and raises the gate-source voltage quickly to turn on the MOSFET switches. Hence, the resonant frequency can be increased more than 100 kHz for large size switching devices. Besides, to protect the ballast from being destroyed, overvoltage/current protection and trigger delay circuits are designed. The HPS lamp used in the simulation and experiment has the rating of 400 W input power at 220 V input AC voltage source. The experiments show that the resonant frequency is above 150 kHz at start up and the inverter stops its operation by the overvoltage/current protection at nearly 3000 V.","PeriodicalId":19979,"journal":{"name":"PESC Record. 27th Annual IEEE Power Electronics Specialists Conference","volume":"23 1","pages":"993-998 vol.2"},"PeriodicalIF":0.0,"publicationDate":"1996-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86698846","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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