高推力永磁游标直线电机的开放式绕组SVPWM控制

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摘要提出了基于高推力永磁游标直线电机的开放式绕组空间矢量脉宽调制策略。对双逆变器开放式绕组拓扑结构展开分析,建立空间电压矢量的数学模型。基于现有的两电平逆变器,对双逆变器系统的两边逆变器进行独立分析,将电压矢量组合得到各空间电压矢量对应的开关状态。空间矢量平面被划分为6个子六边形区域,在子六边形内将参考矢量分解为两部分,一部分由一边逆变器钳位于固定开关状态提供,另一部分由另一边逆变器在对应子六边形中调制得到。最后,通过仿真与实验验证了该方法的正确性。

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	陈仲华
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关键词 ：高推力, 永磁直线电机, 双逆变器, 开放式绕组, 子六边形

Abstract：An open-end winding space vector pulse-width modulation (SVPWM) control is proposed for a high thrust permanent magnet vernier linear motor in this paper.Mathematical model of space voltage vector has been established by analyzing the topology structure of dual power supplied open-end winding.Either side of the dual inverter system is analyzed independently based on traditional two level inverter so that corresponding switch states of dual inverter can be obtained from two single inverter.In the proposed strategy,the space voltage vector plane is divided into six sub-hexagon sectors.Hence,the reference voltage vector can be divided into two sub-vectors.One part sub-vector can be achieved by clamping one side inverter in special switch state,and another sub-vector is modulated by the other side inverter in the six sub-hexagons divided further in each sector.Finally,the validity of the proposed strategy is confirmed by simulation and experiment results.

Key words： High thrust permanent magnet linear motor dual inverter open-end winding sub-hexagons

收稿日期: 2016-08-18 出版日期: 2017-03-23

PACS:

TM315

基金资助:国家自然科学基金项目(51277194)、江苏省高校优势学科项目、江苏省青蓝工程和江苏省研究生实践创新计划项目(SJLX16_0426)资助。

作者简介: 陈仲华男,1992年生,硕士研究生,研究方向为永磁游标直线电机系统及其控制。E-mail:czhkobe@126.com赵文祥男,1976年生,教授,博士生导师,研究方向为电机设计与电磁分析、复杂系统及其控制。E-mail:zwx@ujs.edu.cn(通信作者)

引用本文:

陈仲华,赵文祥,张建,陈前. 高推力永磁游标直线电机的开放式绕组SVPWM控制[J]. 电工技术学报, 2016, 31(增刊2): 219-209. Chen Zhonghua,Zhao Wenxiang,Zhang Jian,Chen Qian. SVPWM Control for Dual Two-Level Inverter Fed Open-End Winding High Thrust Permanent Magnet Vernier Linear Motor. Transactions of China Electrotechnical Society, 2016, 31(增刊2): 219-209.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2016/V31/I增刊2/219

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