一种用于异步电机效率优化的混合搜索方法

针对异步电机效率优化问题,提出了一种混合搜索方法。该方法起始于模糊自适应搜索,然后切换至黄金分割法以获取确定收敛速度。这样的搜索步骤能够降低转矩波动,避免在最优点附近发生振荡。利用一个包含铁损和机械损耗的异步电机模型,对该方法进行了矢量控制下的性能验证。仿真结果验证了该方法的有效性。

A hybrid search method is proposed for the efficiency optimization of vector controlled induction motors.This method gives fuzzy logic based adaptive search steps and then switches to the golden section technique to obtain a fixed convergence rate.Such a procedure reduces torque pulsation and avoids search oscillation around the optimal flux.Simulation results with a lossy model of a vector controlled induction motor show the feasibility of the method.

中国科学院知识创新工程项目(CX07-03-003)