摘要
为提高五相永磁同步电机故障状态下的转矩性能,提出了一种基于铜耗最小的解耦容错控制方法。在磁动势不变原理与铜耗最小原则的基础上,求解出故障后电机的容错电流,然后根据所求得的补偿电流,推导出电机缺相后的降维变换矩阵,从而建立故障后五相永磁同步电机的数学模型,实现故障后电机的解耦控制。采用联合仿真的方法来验证所提出的容错控制算法。仿真结果表明,缺相后电机的转矩脉动得到了有效的降低,实现了电机的无扰容错运行。
To improve the torque performance of five phase permanent magnet synchronous motor under fault condition, a deeoupling fault tolerant control method based on minimum copper loss was proposed. The method which based on the principle of the constant stator magnetic motive force and minimum copper loss could be used to calculating the fault-tolerant current. Then, according to the compensation current, the reduced-order transformation matrix had been deduced. In the rotating coordinates, the mathematical model of the five-phase permanent-magnet synchronous motor was established. And the decoupling vector control method is achieved. The effectiveness of the proposed fault-tolerant control algorithm is verified by the method of co-simulation. The results of the simulation showed that the proposed fault-tolerant control could reduce the torque ripple under the faulty condition.
作者
赵美玲
全力
张超
朱孝勇
ZHAO Meiling;QUAN Li;ZHANG Chao;ZHU Xiaoyong(School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China)
出处
《电机与控制应用》
北大核心
2017年第12期126-133,共8页
Electric machines & control application
基金
国家自然科学基金项目(51377073)
关键词
五相永磁同步电机
开路故障
铜耗
解耦
容错控制
five-phase permanent magnet synchronous motor （FPMSM）
open-circuit fault
copper loss
decoupling
fault-tolerant control
