移30°永磁同步电机的矢量控制系统" /> 移30°永磁同步电机的矢量控制系统" /> 多电平双 <graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="-31-22-45/img_1.png"/> 移30°永磁同步电机的矢量控制系统
电工技术学报  2016, Vol. 31 Issue (22): 45-56    DOI:
电机与电器 |
多电平双 移30°永磁同步电机的矢量控制系统
卢峥1, 2, 欧阳红林1, 孟超1, 朱思国3
1. 湖南大学电气与信息工程学院 长沙 410082;
2. 南阳理工学院电子与电气工程学院 南阳 473000;
3. 国网湖南省电力公司防灾减灾中心 长沙 410000
Vector Control System of Multilevel Inverter Double Star Winding Shifted by 30°Permanent Magnet Synchronous Motor
Lu Zheng1, 2, Ouyang Honglin1, Meng Chao1, Zhu Siguo3
1. College of Electrical Engineering Hunan University Changsha 410082 China;
2. School of Electronic and Electrical Engineering Nanyang Institute of Technology Nanyang 473000 China;
3. State Grid Hunan Electric Company Disaster Prevention and Reduction Center Changsha 410000 China
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摘要 为了进一步提高调速系统的容量,降低输出谐波和转矩脉动,将多电平逆变器与多相电机相结合,给出了五级十一电平级联型多电平逆变器驱动双移30°永磁同步电机的六相调速系统拓扑结构,分析了电压空间矢量在各正交空间的分布,研究了基于双级联型逆变器的四矢量空间矢量脉宽调制(SVPWM)算法。基于Matlab的仿真将级联型多电平逆变器驱动的双移30°永磁同步电机矢量控制系统与两电平逆变器驱动的双移30°永磁同步电机矢量控制系统进行比较,前者的转矩、稳态电流等性能均优于后者,其稳态电流总谐波畸变率仅为2.68%。基于DSP的实验表明级联型多电平逆变器输出波形接近正弦波,转矩脉动较小,稳态电流谐波含量低,达到了预期的控制效果,从而验证了本文所提方法的可行性。
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卢峥
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关键词 级联型多电平逆变器双7-2016-0170(45-56)/img_5.png11.311.3移30°永磁同步电机电压空间矢量控制    
Abstract:In order to further improve the capacity of the speed regulating system and reduce the output harmonic and torque ripple, this paper applies the multilevel inverter technology in multiphase machine. The speed regulating system with 30°-shift double-star winding of permanent magnet synchronous motor (PMSM) is provided, which is fed by eleven-level cascaded multilevel inverter. The distributions of voltage space vectors in different orthogonal spaces are analyzed in detail. Meanwhile, the four-vector space vector pulse width modulation (SVPWM) algorithm is presented based on two cascaded inverters. In Matlab simulation, the PMSM vector control system of 30°-shift double-star winding driven by the multilevel inverter is compared with the vector control system supplied with the two-level inverter. Regarding the former control system, its performance of torque and steady current is superior to the latter, and the total harmonics distortion (THD) of steady current is only 2.68%. The experimental results based on DSP show that the output waveforms of cascaded multilevel inverter are close to sinusoidal wave. Besides, the ripples of the torque are small and the harmonic content of steady current is low. It has reached the expected control effect, which verifies the feasibility of the proposed method.
Key wordsCascaded multilevel inverter    permanent magnet synchronous motor of 30°-shift double-star winding    voltage space vector control   
收稿日期: 2016-01-29      出版日期: 2016-12-02
PACS: TM464  
基金资助:国家自然科学基金资助项目(51237003、51677063)
作者简介: 卢峥女,1978年生,博士研究生,研究方向为电力电子与电力传动和多相电机的驱动控制。E-mail:lucia106@163.com(通信作者);欧阳红林男,1965年生,博士,教授,研究方向为电力电子与电力传动、多相电机系统及其控制。E-mail:oyhl1405.ouyang@vip.sina.com
引用本文:   
卢峥, 欧阳红林, 孟超, 朱思国. 多电平双 移30°永磁同步电机的矢量控制系统[J]. 电工技术学报, 2016, 31(22): 45-56. Lu Zheng, Ouyang Honglin, Meng Chao, Zhu Siguo. Vector Control System of Multilevel Inverter Double Star Winding Shifted by 30°Permanent Magnet Synchronous Motor. Transactions of China Electrotechnical Society, 2016, 31(22): 45-56.
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