Pub Date : 2009-05-17DOI: 10.1109/IPEMC.2009.5157438
Wen Wang, Jianping Xu, Xiaojuan Wei, Guohua Zhou
This paper investigates a new control technique for non-isolated single-inductor dual-output (SIDO) buck converters using peak inductor current and differential-mode voltage. The proposed control method applied for SIDO converters operating in continuous conduction mode (CCM) realizes independent control of each output of the SIDO converter to reduce the cross-regulation problem. Simulation results are presented in this paper to verify the proposed control method.
{"title":"Peak inductor current and differential-mode voltage control of single-inductor dual-output buck converters in continuous conduction mode","authors":"Wen Wang, Jianping Xu, Xiaojuan Wei, Guohua Zhou","doi":"10.1109/IPEMC.2009.5157438","DOIUrl":"https://doi.org/10.1109/IPEMC.2009.5157438","url":null,"abstract":"This paper investigates a new control technique for non-isolated single-inductor dual-output (SIDO) buck converters using peak inductor current and differential-mode voltage. The proposed control method applied for SIDO converters operating in continuous conduction mode (CCM) realizes independent control of each output of the SIDO converter to reduce the cross-regulation problem. Simulation results are presented in this paper to verify the proposed control method.","PeriodicalId":375971,"journal":{"name":"2009 IEEE 6th International Power Electronics and Motion Control Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124340598","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 : 2009-05-17DOI: 10.1109/IPEMC.2009.5157422
W. Fei, P. Luk
This paper compares two stator-to-rotor pole ratio topologies, namely 12/10 and 12/8, of surface mounted axial-flux permanent-magnet machines with soft magnetic composite (SMC) cores. A quasi three-dimensional (3-D) analytical model is first developed for the derivation of machine static parameters. Two 5-kW@1000rpm surface mounted AFPM segmented armature torus (SAT) machines are designed for direct-drive electric vehicle propulsion. The machine parameters from both analytical and and comprehensive 3-D finite element analysis (FEA) are evaluated and compared, and good agreements are achieved. Finally, efficient equation-based simulink models are established to compute the performances of the two machines, which have revealed that the 12/10 machine has better overall machine performance particularly lower torque ripple and higher overload capability.
{"title":"Performance study of two axial-flux permanent-magnet machine topologies with soft magnetic composite cores","authors":"W. Fei, P. Luk","doi":"10.1109/IPEMC.2009.5157422","DOIUrl":"https://doi.org/10.1109/IPEMC.2009.5157422","url":null,"abstract":"This paper compares two stator-to-rotor pole ratio topologies, namely 12/10 and 12/8, of surface mounted axial-flux permanent-magnet machines with soft magnetic composite (SMC) cores. A quasi three-dimensional (3-D) analytical model is first developed for the derivation of machine static parameters. Two 5-kW@1000rpm surface mounted AFPM segmented armature torus (SAT) machines are designed for direct-drive electric vehicle propulsion. The machine parameters from both analytical and and comprehensive 3-D finite element analysis (FEA) are evaluated and compared, and good agreements are achieved. Finally, efficient equation-based simulink models are established to compute the performances of the two machines, which have revealed that the 12/10 machine has better overall machine performance particularly lower torque ripple and higher overload capability.","PeriodicalId":375971,"journal":{"name":"2009 IEEE 6th International Power Electronics and Motion Control Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127671013","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 : 2009-05-17DOI: 10.1109/IPEMC.2009.5157560
Hung-Ching Lu, Te-Lung Shih
A single-stage electronic ballast topology with the properties of high efficiency and low stress is proposed in this paper. The ballast consists of a voltage fed half-bridge series-resonant series-parallel-load (SRSPL) inverter, playing the role of lamp driver, and a voltage boost converter, which shares low side switch device with half-bridge inverter and acts as power-factor-correction (PFC). The inverter of the ballast is loaded with resonant tanks which are designed and operated to be capacitive and inductive to theoretically achieve both of zero-voltage switching (ZVS) and zero-current switching (ZCS) that eliminate the reactive current circulating through the switches to prevent low switching and conduction losses. The boost converter of the ballast provides sufficient high voltage to ignite the lamp. In addition, prior to shaping the input current and reducing harmonic currents to ignite the lamp, a power factor correction stage is performed by the converter. The merit of a successive ignition of the lamps can be attained with proposed operation scheme so that current stress imposed on the switches can be reduced. The simulation results and experimental measurements are used to verify the theoretical prediction and analysis.
{"title":"High efficiency single-stage Multi-Fluorescent Lamps Electronic Ballast","authors":"Hung-Ching Lu, Te-Lung Shih","doi":"10.1109/IPEMC.2009.5157560","DOIUrl":"https://doi.org/10.1109/IPEMC.2009.5157560","url":null,"abstract":"A single-stage electronic ballast topology with the properties of high efficiency and low stress is proposed in this paper. The ballast consists of a voltage fed half-bridge series-resonant series-parallel-load (SRSPL) inverter, playing the role of lamp driver, and a voltage boost converter, which shares low side switch device with half-bridge inverter and acts as power-factor-correction (PFC). The inverter of the ballast is loaded with resonant tanks which are designed and operated to be capacitive and inductive to theoretically achieve both of zero-voltage switching (ZVS) and zero-current switching (ZCS) that eliminate the reactive current circulating through the switches to prevent low switching and conduction losses. The boost converter of the ballast provides sufficient high voltage to ignite the lamp. In addition, prior to shaping the input current and reducing harmonic currents to ignite the lamp, a power factor correction stage is performed by the converter. The merit of a successive ignition of the lamps can be attained with proposed operation scheme so that current stress imposed on the switches can be reduced. The simulation results and experimental measurements are used to verify the theoretical prediction and analysis.","PeriodicalId":375971,"journal":{"name":"2009 IEEE 6th International Power Electronics and Motion Control Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126236984","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 : 2009-05-17DOI: 10.1109/IPEMC.2009.5157783
Yongshuai Zhang, Bo Zhou, Le Zhang
The paper presents a fault diagnosis algorithm for rectification circuit in doubly salient electro-magnetic wind generator system. The laws of excitation current both in normal condition and fault conditions were analyzed in detail. And it classified the faults (within 2 diodes faults) as 7 patterns or 22 faults states according to distortion laws of excitation current. Taking 24/16 poles doubly salient electro-magnetic wind generator as a prototype, fault signals at great mass were gathered. Wavelet analysis of fault excitation current was processed and fault diagnosis was carried out by the fault pattern vectors established based on energy eigenvalue. Experiments confirm the feasibility of the proposed fault diagnosis system.
{"title":"Fault diagnosis of rectification circuit for doubly-salient electro-magnetic wind generator using excitation current","authors":"Yongshuai Zhang, Bo Zhou, Le Zhang","doi":"10.1109/IPEMC.2009.5157783","DOIUrl":"https://doi.org/10.1109/IPEMC.2009.5157783","url":null,"abstract":"The paper presents a fault diagnosis algorithm for rectification circuit in doubly salient electro-magnetic wind generator system. The laws of excitation current both in normal condition and fault conditions were analyzed in detail. And it classified the faults (within 2 diodes faults) as 7 patterns or 22 faults states according to distortion laws of excitation current. Taking 24/16 poles doubly salient electro-magnetic wind generator as a prototype, fault signals at great mass were gathered. Wavelet analysis of fault excitation current was processed and fault diagnosis was carried out by the fault pattern vectors established based on energy eigenvalue. Experiments confirm the feasibility of the proposed fault diagnosis system.","PeriodicalId":375971,"journal":{"name":"2009 IEEE 6th International Power Electronics and Motion Control Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126391797","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 : 2009-05-17DOI: 10.1109/IPEMC.2009.5289334
Qiang Li, M. Lim, Julu Sun, A. Ball, Y. Ying, F. Lee, K. Ngo
This preliminary roadmap is provided for state-of-the-art technologies and trends toward integration of point-of-load converters. This paper encompasses an extended survey of literature ranging from device technologies and magnetic materials to integration technologies and approaches. The paper is organized into three main sections. 1) Device technologies, including the trench NIOSFET, lateral MOSFET and lateral trench MOSFET, are discussed along with their intended applications. The critical role of device packaging to highfrequency integration is assessed. 2) Magnetic materials: In recent years, a number of new magnetic materials have been explored in various research labs to facilitate magnetic integration for high-frequency POL applications. These data are collected and organized to help selecting magnetic material for various current levels and frequency ranges. 3) Levels of integration, which are defined with the focus on magnetic integration techniques and approaches, namely board-level, package-level and wafer-level, each with suitable current scale and frequency range.
{"title":"Technology roadmap for high frequency integrated DC-DC converter","authors":"Qiang Li, M. Lim, Julu Sun, A. Ball, Y. Ying, F. Lee, K. Ngo","doi":"10.1109/IPEMC.2009.5289334","DOIUrl":"https://doi.org/10.1109/IPEMC.2009.5289334","url":null,"abstract":"This preliminary roadmap is provided for state-of-the-art technologies and trends toward integration of point-of-load converters. This paper encompasses an extended survey of literature ranging from device technologies and magnetic materials to integration technologies and approaches. The paper is organized into three main sections. 1) Device technologies, including the trench NIOSFET, lateral MOSFET and lateral trench MOSFET, are discussed along with their intended applications. The critical role of device packaging to highfrequency integration is assessed. 2) Magnetic materials: In recent years, a number of new magnetic materials have been explored in various research labs to facilitate magnetic integration for high-frequency POL applications. These data are collected and organized to help selecting magnetic material for various current levels and frequency ranges. 3) Levels of integration, which are defined with the focus on magnetic integration techniques and approaches, namely board-level, package-level and wafer-level, each with suitable current scale and frequency range.","PeriodicalId":375971,"journal":{"name":"2009 IEEE 6th International Power Electronics and Motion Control Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125592024","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 : 2009-05-17DOI: 10.1109/IPEMC.2009.5157540
Xin Zhao, Hui-Wen Liang
Interior permanent magnet synchronous motor (IPMSM) can be applied in electric vehicles for its wide-speed operation. The current vector control algorithm of an IPMSM in different speed operation region over is proposed in this paper. Form the theoretical analyses, the optimal behavior of the IPMSM can be achieved by considering three control strategies: maximum torque per ampere (MTPA) control strategy in constant torque region, constant current amplitude control in general flux-weakening region, and maximum input power flux-weakening control in high-speed region. The algorithm provides robust current regulation with maximum efficiency and torque capability for IPMSM. In different region, the optimum d-axis current command can be calculated according to different control strategy. The q-axis current command is determined from the torque command and d-axis current. In testing the proposed control algorithm, a vector control system, which consists of two closed loops of control: speed control and current control, was developed to control the IPMSM operating in different speed region. Simulation results from a machine prototype show that the algorithm provides good static and dynamic response in wide-speed region with different control strategies. This paper presents the operating principles, theoretical analyses, and simulation results of the IPMSM over wide-speed region.
{"title":"Flux-weakening control of permanent magnet synchronous motor using in electric vehicles","authors":"Xin Zhao, Hui-Wen Liang","doi":"10.1109/IPEMC.2009.5157540","DOIUrl":"https://doi.org/10.1109/IPEMC.2009.5157540","url":null,"abstract":"Interior permanent magnet synchronous motor (IPMSM) can be applied in electric vehicles for its wide-speed operation. The current vector control algorithm of an IPMSM in different speed operation region over is proposed in this paper. Form the theoretical analyses, the optimal behavior of the IPMSM can be achieved by considering three control strategies: maximum torque per ampere (MTPA) control strategy in constant torque region, constant current amplitude control in general flux-weakening region, and maximum input power flux-weakening control in high-speed region. The algorithm provides robust current regulation with maximum efficiency and torque capability for IPMSM. In different region, the optimum d-axis current command can be calculated according to different control strategy. The q-axis current command is determined from the torque command and d-axis current. In testing the proposed control algorithm, a vector control system, which consists of two closed loops of control: speed control and current control, was developed to control the IPMSM operating in different speed region. Simulation results from a machine prototype show that the algorithm provides good static and dynamic response in wide-speed region with different control strategies. This paper presents the operating principles, theoretical analyses, and simulation results of the IPMSM over wide-speed region.","PeriodicalId":375971,"journal":{"name":"2009 IEEE 6th International Power Electronics and Motion Control Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125628052","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 : 2009-05-17DOI: 10.1109/IPEMC.2009.5157644
Zhao Yan-lei, Jiang Zhihai
A PCS (Power Conditioning System) for AMTEC (Alkali Metal Thermo-Electric Converter), which is composed of DC/DC converter and DC/AC converter adapting to volt-ampere characteristic of AMTEC, is researched and designed. Two parts of the PCS are separated by a high frequency transformer, so the disadvantage of low frequency one is eliminated. Using phase-shift ZVS (Zero Voltage Switching) full bridge and voltage closed loop control, DC/DC converter converts output voltage of AMTEC which fluctuates in a wide range to a steady voltage. DC/AC converter is controlled by optimal SHEPWM (Selective Harmonic Elimination PWM) technique, which makes THD (Total Harmonic Distortion) of the inverter being filtered as objective function and uses penalty function algorithm for optimized calculation, so the optimal switching angle of the inverter can be obtained. The experimental result shows that the PCS has the advantages of wide voltage input, high converting efficiency and low THD in output voltage. The PCS proposed in this paper will be useful for the development of AMTEC with high power and high efficiency.
研究设计了一种适应碱金属热电转换器伏安特性的DC/DC变换器和DC/AC变换器组成的碱金属热电转换器电源调节系统。PCS的两部分由高频变压器分开，消除了低频变压器的缺点。DC/DC变换器采用相移零电压开关(Zero Voltage Switching，简称ZVS)全桥和电压闭环控制，将AMTEC的输出电压从大范围波动转换为稳定电压。采用最优SHEPWM (Selective Harmonic Elimination PWM)技术对DC/AC变换器进行控制，该技术将被滤波逆变器的总谐波失真(THD)作为目标函数，采用罚函数算法进行优化计算，从而获得逆变器的最优开关角。实验结果表明，PCS具有输入电压宽、转换效率高、输出电压THD小等优点。本文所提出的PCS将为大功率、高效率的AMTEC的发展提供参考。
{"title":"Research and design of Power Conditioning System for Alkali Metal Thermo-Electric Converter","authors":"Zhao Yan-lei, Jiang Zhihai","doi":"10.1109/IPEMC.2009.5157644","DOIUrl":"https://doi.org/10.1109/IPEMC.2009.5157644","url":null,"abstract":"A PCS (Power Conditioning System) for AMTEC (Alkali Metal Thermo-Electric Converter), which is composed of DC/DC converter and DC/AC converter adapting to volt-ampere characteristic of AMTEC, is researched and designed. Two parts of the PCS are separated by a high frequency transformer, so the disadvantage of low frequency one is eliminated. Using phase-shift ZVS (Zero Voltage Switching) full bridge and voltage closed loop control, DC/DC converter converts output voltage of AMTEC which fluctuates in a wide range to a steady voltage. DC/AC converter is controlled by optimal SHEPWM (Selective Harmonic Elimination PWM) technique, which makes THD (Total Harmonic Distortion) of the inverter being filtered as objective function and uses penalty function algorithm for optimized calculation, so the optimal switching angle of the inverter can be obtained. The experimental result shows that the PCS has the advantages of wide voltage input, high converting efficiency and low THD in output voltage. The PCS proposed in this paper will be useful for the development of AMTEC with high power and high efficiency.","PeriodicalId":375971,"journal":{"name":"2009 IEEE 6th International Power Electronics and Motion Control Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125803746","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 : 2009-05-17DOI: 10.1109/IPEMC.2009.5157802
Chunlong Li, Baoping Guo, Nan Li
The control time delay and the passive component variation were the major disadvantages of the deadbeat current control. It could induce system oscillation and even stability to be lost. In order to get the relation of stability with control time delay and the system parameters variation, a new stability criterion method based on W′ transform was proposed. A new current loop transfer function including delay effect and the inductor parameter variation was acquired, and then the transfer function in W′ domain based on the new transfer function in Z domain was obtained by W′ transform. The exact relation of stability with control time delay and the inductor parameter variation was acquired according to the Bode diagram and Routh criterion, and the concrete method which could deal with stability problem in deadbeat current control was given. A prototype 5kVA single-phase shunt active power filter was set up for the proof of concept. The prototype system was operated at 20 kHz switching frequency and was controlled by TMS320F28335 DSP. Experimental results proved the validity of the proposed scheme.
{"title":"The research on stability of deadbeat current control in shunt active power filter","authors":"Chunlong Li, Baoping Guo, Nan Li","doi":"10.1109/IPEMC.2009.5157802","DOIUrl":"https://doi.org/10.1109/IPEMC.2009.5157802","url":null,"abstract":"The control time delay and the passive component variation were the major disadvantages of the deadbeat current control. It could induce system oscillation and even stability to be lost. In order to get the relation of stability with control time delay and the system parameters variation, a new stability criterion method based on W′ transform was proposed. A new current loop transfer function including delay effect and the inductor parameter variation was acquired, and then the transfer function in W′ domain based on the new transfer function in Z domain was obtained by W′ transform. The exact relation of stability with control time delay and the inductor parameter variation was acquired according to the Bode diagram and Routh criterion, and the concrete method which could deal with stability problem in deadbeat current control was given. A prototype 5kVA single-phase shunt active power filter was set up for the proof of concept. The prototype system was operated at 20 kHz switching frequency and was controlled by TMS320F28335 DSP. Experimental results proved the validity of the proposed scheme.","PeriodicalId":375971,"journal":{"name":"2009 IEEE 6th International Power Electronics and Motion Control Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125952029","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 : 2009-05-17DOI: 10.1109/IPEMC.2009.5157572
L. Liang, Yuehui Yu, Renwei Feng
The turn-off time of the RSD(reversely switched dynistor) switch is investigated by experiments in this paper. According to its special operating mode, the turn-off criterion of the RSD and a measuring method of the turn-off time are proposed. The measuring platform of the turn-off time is designed and established. The measuring precision is 1.1µs. The experimental results show that the turn-off time of the RSD is in the order from several tens to a hundred microseconds. The increase of the minority lifetime in n-base region makes the turn-off time increase significantly. The turn-off time also increases with enhancing the discharge voltage.
{"title":"Experimental measurement for turn-off time of RSD switch","authors":"L. Liang, Yuehui Yu, Renwei Feng","doi":"10.1109/IPEMC.2009.5157572","DOIUrl":"https://doi.org/10.1109/IPEMC.2009.5157572","url":null,"abstract":"The turn-off time of the RSD(reversely switched dynistor) switch is investigated by experiments in this paper. According to its special operating mode, the turn-off criterion of the RSD and a measuring method of the turn-off time are proposed. The measuring platform of the turn-off time is designed and established. The measuring precision is 1.1µs. The experimental results show that the turn-off time of the RSD is in the order from several tens to a hundred microseconds. The increase of the minority lifetime in n-base region makes the turn-off time increase significantly. The turn-off time also increases with enhancing the discharge voltage.","PeriodicalId":375971,"journal":{"name":"2009 IEEE 6th International Power Electronics and Motion Control Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115813836","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 : 2009-05-17DOI: 10.1109/IPEMC.2009.5157729
S. Liwei, Z. Xueyi
Several couples of permanent magnet material are alternately fixed on the inside surface of the centrifugal rotor with nonmagnetic bolts. Adjoined permanent magnet material's polarity is opposite. And N poles and S poles are side by side. When the rotor turns, the magnet field turns and the set generates electricity. With the permanent magnet material of high remnant magnetic induction and the optimized design of the generating set, the output voltage is improved on the low rotate speed. A parallel regulator with the function of zero current blockades is designed. So the output voltage is stabilized when the rotate speed is high. It solves farm vehicle's problem of keeping the voltage steady on varied speed and load.
{"title":"Voltage-regulating of centrifugal permanent magnet generating set on farm vehicle","authors":"S. Liwei, Z. Xueyi","doi":"10.1109/IPEMC.2009.5157729","DOIUrl":"https://doi.org/10.1109/IPEMC.2009.5157729","url":null,"abstract":"Several couples of permanent magnet material are alternately fixed on the inside surface of the centrifugal rotor with nonmagnetic bolts. Adjoined permanent magnet material's polarity is opposite. And N poles and S poles are side by side. When the rotor turns, the magnet field turns and the set generates electricity. With the permanent magnet material of high remnant magnetic induction and the optimized design of the generating set, the output voltage is improved on the low rotate speed. A parallel regulator with the function of zero current blockades is designed. So the output voltage is stabilized when the rotate speed is high. It solves farm vehicle's problem of keeping the voltage steady on varied speed and load.","PeriodicalId":375971,"journal":{"name":"2009 IEEE 6th International Power Electronics and Motion Control Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121806779","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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