摘要
针对滑模电流控制算法的抖振问题,将滞环空间矢量(SVPWM)算法与滑模电流控制算法相结合,论证了将两种控制算法结合的可能性和必要性。提出以误差电流矢量的模为切换标准、按不同控制阶段的不同控制要求交替使用滞环SVPWM算法和滑模电流控制的双滞环SVPWM算法。新算法提高了滞环SVP-WM算法的快速性,同时避免了滑模电流控制带来的抖振问题。通过仿真证明了该算法的可行性。
For avoiding chatter in sliding mode control, a control algorithm of double hysteresis SVPWM base on sliding mode was advanced, and the possibility and the indispensable of combining the two control strategy was argumented. A optimized SVPWM control algorithm was advanced which applies SVPWM control algorithm and sliding mode control by turns according to error current vector and different require in different stage. The optimized algorithm enhances the tracking capability of SVPWM, and avoids chattering in sliding mode control. Simulation results prove the validity of the theoretical analysis in the end.
出处
《电气传动》
北大核心
2008年第7期34-37,共4页
Electric Drive
基金
天津市自然科学基金(06YFJMJC01800)
