基于五相电流源型逆变器的一种新型PMSM就近空间矢量容错组合策略  

A Novel PMSM Near Space Vector Fault Tolerant Combination Strategy Based on Five-Phase Current Source Inverter

作　　者：陈超[1,2] 陈振 赵静[1,2] 高聪哲 刘向东[1,4] 廖晓钟 Chen Chao;Chen Zhen;Zhao Jing;Gao Congzhe;Liu Xiangdong;Liao Xiaozhong(School of Automation Beijing Institute of Technology,Beijing 100081 China;Key Laboratory of Drive and Control of Servo Motion System Ministry of Industry and Information Technology,Beijing 100081 China;Zhongshan Research Institute Beijing Institute of Technology,Zhongshan 528437 China;State Key Laboratory of Intelligent Control and Decision for Complex Systems,Beijing 100081 China)

机构地区：[1]北京理工大学自动化学院,北京100081 [2]伺服运动系统驱动与控制工信部重点实验室,北京100081 [3]北京理工大学中山研究院,中山528437 [4]复杂系统智能控制与决策国家重点实验室,北京100081

出　　处：《电工技术学报》2020年第S02期404-412,共9页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金项目(11972078);新型研发机构重大研发平台建设项目(2016F2FC0007)资助。

摘　　要：随着社会的发展,舰船、卫星、电动汽车等领域对电机驱动系统可靠性的要求越来越高,与电机本体相比,驱动器更容易发生开路故障,这使驱动器开路故障容错策略研究受到越来越广泛的关注。该文基于五相电流源型PMSM驱动系统,针对驱动器开路故障,提出一种就近空间矢量容错组合策略。该策略根据空间电流矢量幅值与相位的特点,结合矢量控制原理,在开路故障条件下就近选择空间电流矢量进行目标电流矢量合成,实现电磁转矩的平稳控制并维持电机的平稳运行。该策略简单方便,解决了传统电压源型驱动系统中容错控制策略开关频率不固定的问题,提高了系统稳定性。仿真实验表明,在故障条件下,该容错策略可以有效地实现电机继续平稳运行的目标。With the development of society,the reliability requirements of motor drive systems in ships,satellites,electric vehicles and other fields are increasing.Compared with the motor body,the driver is more prone to open circuit failure,which makes the research on open-circuit fault-tolerant strategies has attracted more and more attention.Based on the five-phase current source PMSM drive system,this paper proposes a near space vector fault-tolerant combination strategy for the open circuit failure of the drive.According to the characteristics of space current vector amplitude and phase,combined with the principle of vector control,the algorithm selects the nearest space current vector for target current vector synthesis under the condition of open-circuit fault to realize the stable control of electromagnetic torque and maintain the smooth operation of the motor.The algorithm is simple and convenient,which solves the problem of the non-fixed switching frequency in the fault-tolerant control strategy for the traditional voltage source drive system and improves the system stability.Simulation experiments show that under fault conditions,this fault-tolerant strategy can effectively achieve the goal of the motor continuing to run smoothly.

关 键 词：电流源型逆变器 五相永磁同步电机 逆变器开路故障 容错控制 

分 类 号：TM351[电气工程—电机]