一种改进的无零矢量共模电压抑制PWM策略
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摘要
为了抑制共模电压、完全消除死区尖峰,提出一种通过参数w直接分配各非零电压矢量作用时间的改进PWM策略—AZPWM_w。确定w值的原则为:首先保证各非零矢量的作用时间大于死区时间,其次以输出波形的性能指标HDF为依据,对参数w寻优。仿真和实验结果表明:AZPWM_w策略可以在全调制比范围内消除共模电压死区尖峰,谐波性能较其他改进策略也有所改善。
In this paper, an improved common-mode voltages(CMV) reduction PWM strategy, called AZPWM-w strategy, which directly allocates the action time of nonzero voltage vector by parameter w, is proposed. The principle of determining the value of w is as follows: firstly, that the action time of each nonzero vector is longer than the dead time is ensured; secondly, based on the output waveform performance index HDF, the parameter w is optimized.The simulation and experimental results show that the proposed strategy can solve the dead-time peak problem in the range of full modulation ratio, and the harmonic performance is better compared with other improved strategies.
In this paper, an improved common-mode voltages(CMV) reduction PWM strategy, called AZPWM-w strategy, which directly allocates the action time of nonzero voltage vector by parameter w, is proposed. The principle of determining the value of w is as follows: firstly, that the action time of each nonzero vector is longer than the dead time is ensured; secondly, based on the output waveform performance index HDF, the parameter w is optimized.The simulation and experimental results show that the proposed strategy can solve the dead-time peak problem in the range of full modulation ratio, and the harmonic performance is better compared with other improved strategies.
引文
[1] 陈坚(Chen Jian).电力电子学:电力电子变换和控制技术(Power electronics:power electronic transformation and control technology)[M].北京:高等教育出版社(Beijing:Higher Education Press),2002.
[2] Grahame Holmes D,Lipo Thomas A.电力电子变换器PWM技术原理与实践(Pulse width modulation for power converters:principles and prictice)[M].北京:人民邮电出版社(Beijing:People’s Post and Telecommunications Press),2010.
[3] 孟进,马伟明,张磊,等(Meng Jin,Ma Weiming,Zhang Lei,et al.).考虑PWM策略的逆变器共模和差模干扰源模型(DM and CM EMI sources modeling for inverters considering the PWM strategies)[J].电工技术学报(Transactions of China Electrotechnical Society),2007,22(12):92-97.
[4] Adabi J,Zare F,Ledwich G,et al.Bearing damage analysis by calculation of capacitive coupling between inner and outer races of a ball bearing[A].2008 13th International Power Electronics and Motion Control Conference [C].Poznan,Poland,2008.903-907.
[5] 黄立培,浦志勇(Huang Lipei,Pu Zhiyong).大容量PWM逆变器对交流电机的轴电压,轴承电流的影响(Effects of large capacity PWM inverter on AC motor bearing currents and shaft voltages)[J].电工电能新技术(Advanced Technology of Electrical Engineering and Energy),2000,19(4):39-43.
[6] 姜艳姝,徐殿国,陈希有,等(Jiang Yanshu,Xu Dianguo,Chen Xiyou,et al.).一种新颖的用于消除PWM逆变器输出共模电压的有源滤波器(A novel PWM inverter output active filter for common-mode voltage cancellation)[J].中国电机工程学报(Proceedings of the CSEE),2002,22(10):125-129.
[7] 姜艳姝,刘宇,徐殿国,等(Jiang Yanshu,Liu Yu,Xu Dianguo,et al.).PWM变频器输出共模电压及其抑制技术的研究(Research on common-mode voltage generated by a PWM inverter and its cancellation technology)[J].中国电机工程学报(Proceedings of the CSEE),2005,25(9):47-53.
[8] Julian A L,Oriti G,Lipo T A.Elimination of common-mode voltage in three-phase sinusoidal power converters[J].IEEE Transactions on Power Electronics,1999,14(5):982-989.
[9] Wu X,Tan G,Ye Z,et al.Optimized common-mode voltage reduction PWM for three-phase voltage-source inverters[J].IEEE Transactions on Power Electronics,2016,31(4):2959-2969.
[10] Hava A M,ün E.A high-performance PWM algorithm for common-mode voltage reduction in three-phase voltage source inverters[J].IEEE Transactions on Power Electronics,2011,26(7):1998-2008.
[11] 陆海峰,瞿文龙,张星,等(Lu Haifeng,Qu Wenlong,Zhang Xing,et al.).抑制共模电压的不对称NZPWM技术(Asymmetrical NZPWM technique for reducing the common-mode voltage)[J].清华大学学报(自然科学版)(Journal of Tsinghua University (Natural Science Edition)),2007,47(7):1122-1125,1129.
[12] Liu F,Zhao Z,Lu T,et al.A combined PWM algorithm to eliminate spikes of common mode voltages[A].2014 IEEE Conference and Expo Transportation Electrification Asia-Pacific (ITEC Asia-Pacific)[C].2014.1-6.
[13] Tian K,Wang J,Wu B,et al.A virtual space vector modulation technique for the reduction of common-mode voltages in both magnitude and third-order component[J].IEEE Transactions on Power Electronics,2016,31(1):839-848.
[14] Lu Haifeng,Qu Wenlong,Cheng Xiaomeng,et al.A novel PWM technique with two-phase modulation[J].IEEE Transactions on Power Electronics,2007,22(6):2403-2409.
[15] 胡仙(Hu Xian).随机SVPWM的算法研究(Study on the algorithm of random SVPWM)[D].武汉:华中科技大学(Wuhan:Huazhong University of Science & Technology),2011.
[16] Hava A M,Kerkman R J,Lipo T A.Simple analytical and graphical methods for carrier-based PWM-VSI drives[J].IEEE Transactions on Power Electronics,1999,14(1):49-61.
[2] Grahame Holmes D,Lipo Thomas A.电力电子变换器PWM技术原理与实践(Pulse width modulation for power converters:principles and prictice)[M].北京:人民邮电出版社(Beijing:People’s Post and Telecommunications Press),2010.
[3] 孟进,马伟明,张磊,等(Meng Jin,Ma Weiming,Zhang Lei,et al.).考虑PWM策略的逆变器共模和差模干扰源模型(DM and CM EMI sources modeling for inverters considering the PWM strategies)[J].电工技术学报(Transactions of China Electrotechnical Society),2007,22(12):92-97.
[4] Adabi J,Zare F,Ledwich G,et al.Bearing damage analysis by calculation of capacitive coupling between inner and outer races of a ball bearing[A].2008 13th International Power Electronics and Motion Control Conference [C].Poznan,Poland,2008.903-907.
[5] 黄立培,浦志勇(Huang Lipei,Pu Zhiyong).大容量PWM逆变器对交流电机的轴电压,轴承电流的影响(Effects of large capacity PWM inverter on AC motor bearing currents and shaft voltages)[J].电工电能新技术(Advanced Technology of Electrical Engineering and Energy),2000,19(4):39-43.
[6] 姜艳姝,徐殿国,陈希有,等(Jiang Yanshu,Xu Dianguo,Chen Xiyou,et al.).一种新颖的用于消除PWM逆变器输出共模电压的有源滤波器(A novel PWM inverter output active filter for common-mode voltage cancellation)[J].中国电机工程学报(Proceedings of the CSEE),2002,22(10):125-129.
[7] 姜艳姝,刘宇,徐殿国,等(Jiang Yanshu,Liu Yu,Xu Dianguo,et al.).PWM变频器输出共模电压及其抑制技术的研究(Research on common-mode voltage generated by a PWM inverter and its cancellation technology)[J].中国电机工程学报(Proceedings of the CSEE),2005,25(9):47-53.
[8] Julian A L,Oriti G,Lipo T A.Elimination of common-mode voltage in three-phase sinusoidal power converters[J].IEEE Transactions on Power Electronics,1999,14(5):982-989.
[9] Wu X,Tan G,Ye Z,et al.Optimized common-mode voltage reduction PWM for three-phase voltage-source inverters[J].IEEE Transactions on Power Electronics,2016,31(4):2959-2969.
[10] Hava A M,ün E.A high-performance PWM algorithm for common-mode voltage reduction in three-phase voltage source inverters[J].IEEE Transactions on Power Electronics,2011,26(7):1998-2008.
[11] 陆海峰,瞿文龙,张星,等(Lu Haifeng,Qu Wenlong,Zhang Xing,et al.).抑制共模电压的不对称NZPWM技术(Asymmetrical NZPWM technique for reducing the common-mode voltage)[J].清华大学学报(自然科学版)(Journal of Tsinghua University (Natural Science Edition)),2007,47(7):1122-1125,1129.
[12] Liu F,Zhao Z,Lu T,et al.A combined PWM algorithm to eliminate spikes of common mode voltages[A].2014 IEEE Conference and Expo Transportation Electrification Asia-Pacific (ITEC Asia-Pacific)[C].2014.1-6.
[13] Tian K,Wang J,Wu B,et al.A virtual space vector modulation technique for the reduction of common-mode voltages in both magnitude and third-order component[J].IEEE Transactions on Power Electronics,2016,31(1):839-848.
[14] Lu Haifeng,Qu Wenlong,Cheng Xiaomeng,et al.A novel PWM technique with two-phase modulation[J].IEEE Transactions on Power Electronics,2007,22(6):2403-2409.
[15] 胡仙(Hu Xian).随机SVPWM的算法研究(Study on the algorithm of random SVPWM)[D].武汉:华中科技大学(Wuhan:Huazhong University of Science & Technology),2011.
[16] Hava A M,Kerkman R J,Lipo T A.Simple analytical and graphical methods for carrier-based PWM-VSI drives[J].IEEE Transactions on Power Electronics,1999,14(1):49-61.