摘  要：针对电机故障诊断的特点，提出一种基于遗传神经网络（BP）进行异步电机故障检测的新方法。针对神经网络易陷入局部最小点的固有缺点，采用遗传算法(Genetic Algorithm,简称GA)对神经网络初始权值进行全局优化。实践证明该方法可以有效地实现对异步电机的故障诊断，且易于实现，有一定实用价值。
关键词：神经网络；遗传算法；故障诊断；感应电机；实验

Abstract: High-speed PM brushless DC motors have been extensively developed and employed in industry applications,due to high efficiency and high power density.Based on a developed 2.3 kW, 150 000  r/min high-speed PM brushless DC motor,studied influence of parallel and radial magnetizations on the performance of a high-speed PM brushless DC motor comparatively.It shows that parallel magnetization is better than radial magnetization.
Key Words: High-speed motor;Brushless DC motor;Rotor;Magnetization;Experiment