| 空间矢量PWM多相变频调速系统非正弦供电技术 |
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| 引用本文： | 刘东,黄进,于文娟,康敏,杨家强. 空间矢量PWM多相变频调速系统非正弦供电技术[J]. 电机与控制学报, 2010, 14(9) |
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| 作者姓名： | 刘东 黄进 于文娟 康敏 杨家强 |
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| 作者单位： | 浙江大学电气工程学院,浙江杭州,310027;浙江科技学院,自动化与电气学院,浙江,杭州,310023 |
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| 基金项目： | 国家自然科学基金资助项目,浙江省教育厅项目,浙江省科技计划项目 |
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| 摘 要： | 针对多相感应电机正弦供电时直流母线电压利用率低、输出转矩小的问题,建立了多相感应电机非正弦空间电压矢量PWM(NSVPWM)的数学模型,分析了NSVPWM与谐波注入PWM的内在联系,探讨了NSVPWM各个d-q平面参考电压矢量给定问题.以一台九相集中整距绕组感应电机为例,在保持齿、轭部磁密幅值分别相等、定子铜耗相同的前提下,将其分别在SPWM、正弦空间电压矢量PWM和NSVPWM调制策略下的输出转矩进行比较.试验结果证明,采用NSVPWM控制策略时,九相集中整距绕组感应电机输出转矩比采用SPWM时提高了大约6.42%,最后分析了其原因.
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| 关 键 词： | 多相 集中整距绕组 非正弦 空间矢量脉冲宽度调制 输出转矩 |
Non-sinusoidal output voltage for multiphase variable speed drives with space vector PWM |
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| LIU Dong,HUANG Jin,YU Wen-juan,KANG Min,YANG Jia-qiang. Non-sinusoidal output voltage for multiphase variable speed drives with space vector PWM[J]. Electric Machines and Control, 2010, 14(9) |
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| Authors: | LIU Dong HUANG Jin YU Wen-juan KANG Min YANG Jia-qiang |
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| Affiliation: | LIU Dong1,HUANG Jin1,YU Wen-juan1,KANG Min2,YANG Jia-qiang1 (1.College of Electrical Engineering,Zhejiang University,Hangzhou 310027,China,2.School of Automation and Electrical Engineering,Zhejiang University of Science and Technology,Hangzhou 310023,China) |
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| Abstract: | Due to the low DC voltage utilization and small output torque of the multiphase induction motors with sinusoidal output voltage,the non-sinusoidal space vector pulse width modulation (PWM),NSVPWM,is modeled and the inter connection between NSVPWM and harmonic injection PWM is analyzed.The way how to decide the reference voltage vectors on d-q planes is introduced.A nine-phase concentrated winding induction machine is used as a practical example.By maintaining the amplitudes of the tooth flux density and yok... |
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| Keywords: | multiphase concentrated windings non-sine space vector pulse width modulation output torque |
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