摘要
对矢量控制绕组开路式永磁同步电机驱动系统中一相绕组开路故障工况进行研究。采用电流矢量轨迹曲线诊断故障发生位置,通过桥臂冗余开关组合在线模拟开路相故障。引入60°坐标系统下固有开关冗余的电压空间矢量调制重构,提出矢量分解准则,在一个调制周期内逆变器-Ⅱ钳位于对应三角区域顶点的相同冗余开关状态,逆变器-Ⅰ进行电压矢量合成的控制策略,在不增加额外器件下实现驱动系统的缺相容错运行。基于Maxwell&Simplorer&Matlab三者的联合仿真实验验证了该容错方案能够实现驱动系统从开路故障状态到缺相容错运行的平滑、可靠切换,有效提高了系统的可靠性。
Investigation of open circuited motor phase fauh mode behavior for vector control open- winding permanent magnet synchronous motor （PMSM） drive system was done. An approach to fault location based on trajectories of current vector is presented to imitate open circuited winding online by switching combinations. The 60° coordinate system is employed to re- configurate the inherent redundancy of voltage vectors based on inverter- ]I clamped method. In a modulation period, it is ensured that inverter-II is clamped to a common redundancy switch state in the corresponding triangle region, and inverter-I can track the voltage vector. Hence, fault-tolerant lacking-phase drive system can be achieved without additional devices. A co-simulation model based on maxwell＆simplorer＆matlab is performed to predict fault response of the open-winding PMSM. The results show fault tolerant system quickly recovers the control performance.
出处
《电气传动》
北大核心
2014年第3期76-80,共5页
Electric Drive
基金
国家自然科学基金(51177001)
安徽省高校省级优秀青年人才基金(2011SQRL017)
关键词
绕组开路式
60°坐标
重构
缺相
容错
open-winding
60° coordinate system
re-configurate
lacking-phase
fault tolerant
