摘要
容错型永磁磁通切换电机（fault tolerant flux switching permanent magnet motor,FTFSPM）转矩密度高、可靠性强,适用于全电/多电飞机系统。近年来,FTFSPM的动态性能优化及故障下容错控制成为研究热点。研究了一种转矩冲量平衡控制策略,比较了不同开路故障下动态响应的异同。该控制方式下负载突加过程唯一确定,一次电磁转矩的增减不受PI参数的影响,提高了转速的动态性能;但电磁转矩变化率决定了动态响应的快慢。电机发生开路故障时,相电压合成的空间电压矢量缺失,对电磁转矩的改变能力减弱。负载变化前后电机转速不变,结合电机运动方程,估算出不同开路故障下动态调节时间。通过实验对转矩冲量平衡控制进行验证,并比较了不同开路故障下动态响应,验证了所提出算法以及推论的有效性和正确性。
The fault tolerant flux switching permanent magnet motor （FTFSPM） has the advantages of high torque density and high reliability, it is suitable for the all electric/more electric aircraft power system. Dynamic performance optimization and fault tolerant control are the research focus,a torque impulse balance control was studied in this paper, and the difference of dynamic response in different open circuit faults was compared with the fault tolerant algorithm. Using this control strategy, the dynamic response process was determined with once electromagnetic torque increasing and once decreasing in sudden load torque, which will not be impacted by the PI parameters, thus the dynamic response was determined by the changing rate of the electromagnetic torque. Nevertheless, the dynamic process is effected by electromagnetic torque rate. When the machine is under single-phase open-circuit condition and multi-phase open circuit condition, the space voltage vector synthesized changes due to the loss of the failure phase voltage, and the capacity of effecting the electromagnetic torque weaken. With the equation of motion, the dynamic response time under different open-circuit conditions can be counted. The torque impulse balance control is realized by experiment, and the dynamic response is compared under different open circuit conditions. The results illustrate the validity and effectiveness of the torque impulse balance control under the condition of different open-circuit fault.
作者
肖文妍
王宇
耿亮
王子禹
张源
XIAO Wenyan;WANG Yu;GENG Liang;WANG Ziyu;ZHANG Yuan(College of Automation Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,Jiangsu Province,China)
出处
《中国电机工程学报》
EI
CSCD
北大核心
2018年第16期4873-4885,共13页
Proceedings of the CSEE
基金
国家自然科学基金项目(51407090)
江苏省自然基金(BK20140815)
南京航空航天大学青年科技创新基金(NJ20160043)~~
关键词
容错型永磁磁通切换电机
直接转矩控制策略
转矩冲量平衡控制策略
开路故障
fault tolerant flux switching permanent magnetmotor （FTFSPM）
direct torque control （DTC）
torque impulsebalance control
open-circuit condition
