Based on the mathematic model of PMSM, a combination of an improved BP neural network and a general PID controller is used in its speed control system.
在分析永磁同步电机数学模型的基础上，采用改进型BP神经网络与传统PID控制相结合作为速度控制器，应用于永磁同步电机调速系统中。
It integrates the advantages both of general PID controller and fuzzy PID controller, but eliminates their disadvantages so as to realize smooth switching between the two controllers.
该方法集成了常用PID和模糊pid控制方式的优势并弥补了各自的不足，模糊切换方式实现了二种控制器之间的平滑切换。
Combine blur control with general PID control, on line self-adjusting PID parameters according to different error and error variety-rate, which is called PID parameters self-tuning blur controller.
将模糊控制与常规pid控制相结合，根据不同的误差、误差变化率对PID的参数进行在线自动调整，这就是PID参数自整定模糊控制器。
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