永磁磁通切换电机的单位功率因数整流研究
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摘要
永磁磁通切换电机是一种新型定子励磁型电机,在无刷直流发电领域具有潜在应用前景。为解决脉宽调制整流装置因加装位置传感器而带来的成本增加、系统运行可靠性下降等问题,采用单周期控制技术作为无位置传感器直流发电系统的基本控制策略。针对传统单周期控制策略存在的反电动势与电枢电流基波相移问题,采用了一种基于双积分器注入虚拟滞后电流的改进控制策略,并详细推导了核心控制方程。结合简化小信号模型给出的电压开环传递函数,直接采用相位裕度分析法得到了电压控制器参数,较常用的根轨迹设计法更为直观、便捷。750 W样机的仿真与试验结果验证了分析方法的正确性和有效性。
Flux switching permanent magnet machine( FSPM) is an interesting machine with magnets in the stator,which has huge potential application in brushless DC generator. To overcome the deficiencies of adding location sensors,such as system cost rising and operational reliability decreasing,OCC was employed for the positionsensorless PWM rectifier. Aiming at the phase difference of back electromotive force and armature current with conventional OCC,a modified control strategy based on the double integrator to generate a lagging virtual current was proposed,and the control system diagram was also shown. According to the open-loop transfer function based on a small-signal alternate model,the voltage controller parameters were found in terms of the phase margin,which exhibited more intuitive and convenient than the classical root-locus method. The analysis results and the experimental waveforms of a 750 watts prototype demonstrated the correctness of the proposed analyze method.
Flux switching permanent magnet machine( FSPM) is an interesting machine with magnets in the stator,which has huge potential application in brushless DC generator. To overcome the deficiencies of adding location sensors,such as system cost rising and operational reliability decreasing,OCC was employed for the positionsensorless PWM rectifier. Aiming at the phase difference of back electromotive force and armature current with conventional OCC,a modified control strategy based on the double integrator to generate a lagging virtual current was proposed,and the control system diagram was also shown. According to the open-loop transfer function based on a small-signal alternate model,the voltage controller parameters were found in terms of the phase margin,which exhibited more intuitive and convenient than the classical root-locus method. The analysis results and the experimental waveforms of a 750 watts prototype demonstrated the correctness of the proposed analyze method.
引文
[1]HOANG E,AHMED A H B,LUCIDARME J.Switching flux permanent magnet polyphased synchronous machines[C]∥7th European Conference on Power Electronic and Applications,1997:903-908.
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[3]HUA W,CHENG M,JIA H Y,et al.Comparative study of flux-switching and comparative study of fluxswitching and particularly on torque capability[C]∥Industry Applications Society Annual Meeting,2008:1-8.
[4]ZHANG J,CHEN Z,CHENG M.Design and comparison of a novel stator interior permanent magnet generator for direct-drive windturbines[J].Renewable Power Generation,IET,2007,1(4):203-210.
[5]裴召刚,林明耀,赵纪龙.轴向磁场磁通切换型永磁电机矢量控制[J].电机与控制应用,2013,40(7):37-42.
[6]王宇,邓智泉.并列式混合励磁磁通切换电机直流发电系统功率角线性控制策略[J].中国电机工程学报,2012,32(12):136-145
[7]许培林,邓智泉,王宇,等.12/10极永磁磁通切换电机转子初始位置检测[J].中国电机工程学报,2013,33(9):104-114.
[8]WANG Y,DENG Z Q.A Position sensorless method for direct torque control with space vector modulation of hybrid excitation flux-switching generator[J].IEEE Transactions on Energy Conversion,2012,27(4):912-921.
[9]赵仁德,刘星,马帅,等.直驱永磁同步风力发电机无位置传感器控制[J].电机与控制学报,2010,14(7):13-17,22.
[10]吴芳.无传感器永磁同步电机的位置辨识与控制研究[D].武汉:华中科技大学,2011.
[11]张纯江,顾和荣,赵清林,等.单周期控制无乘法器三相电压型PWM整流器[J].电工技术学报,2003,18(6):28-32.
[12]RODRIGUEZ P,LUNA A,TEODORESCU R,et al.A stationary reference frame grid synchronization system for three-phase grid-connected power converters under adverse grid conditions[J].IEEE Transactions on Power Electronics,2012,27(1):99-112.
[13]SHI J J,WANG B C,LU X.400 Hz three-phase PWM rectifier based on vector control with zero static error compensation[J].Transactions of China Electrotechnical Society,2009,25(2):76-80.
[14]李冬.基于Boost变换器的宽输入电压范围功率因数校正技术的研究[D].南京:南京航空航天大学,2006.
[15]杨喜军,姚苏毅,张哲民,等.单周期控制的三相SPWM整流器[J].电力系统自动化学报,2011,23(1):108-113.
[2]花为,程明,ZHU Z Q,et el.新型磁通切换型双凸极永磁电机的静态特性研究[J].中国电机工程学报,2006,26(13):129-134.
[3]HUA W,CHENG M,JIA H Y,et al.Comparative study of flux-switching and comparative study of fluxswitching and particularly on torque capability[C]∥Industry Applications Society Annual Meeting,2008:1-8.
[4]ZHANG J,CHEN Z,CHENG M.Design and comparison of a novel stator interior permanent magnet generator for direct-drive windturbines[J].Renewable Power Generation,IET,2007,1(4):203-210.
[5]裴召刚,林明耀,赵纪龙.轴向磁场磁通切换型永磁电机矢量控制[J].电机与控制应用,2013,40(7):37-42.
[6]王宇,邓智泉.并列式混合励磁磁通切换电机直流发电系统功率角线性控制策略[J].中国电机工程学报,2012,32(12):136-145
[7]许培林,邓智泉,王宇,等.12/10极永磁磁通切换电机转子初始位置检测[J].中国电机工程学报,2013,33(9):104-114.
[8]WANG Y,DENG Z Q.A Position sensorless method for direct torque control with space vector modulation of hybrid excitation flux-switching generator[J].IEEE Transactions on Energy Conversion,2012,27(4):912-921.
[9]赵仁德,刘星,马帅,等.直驱永磁同步风力发电机无位置传感器控制[J].电机与控制学报,2010,14(7):13-17,22.
[10]吴芳.无传感器永磁同步电机的位置辨识与控制研究[D].武汉:华中科技大学,2011.
[11]张纯江,顾和荣,赵清林,等.单周期控制无乘法器三相电压型PWM整流器[J].电工技术学报,2003,18(6):28-32.
[12]RODRIGUEZ P,LUNA A,TEODORESCU R,et al.A stationary reference frame grid synchronization system for three-phase grid-connected power converters under adverse grid conditions[J].IEEE Transactions on Power Electronics,2012,27(1):99-112.
[13]SHI J J,WANG B C,LU X.400 Hz three-phase PWM rectifier based on vector control with zero static error compensation[J].Transactions of China Electrotechnical Society,2009,25(2):76-80.
[14]李冬.基于Boost变换器的宽输入电压范围功率因数校正技术的研究[D].南京:南京航空航天大学,2006.
[15]杨喜军,姚苏毅,张哲民,等.单周期控制的三相SPWM整流器[J].电力系统自动化学报,2011,23(1):108-113.