针对异步电动机直接起动电流较大的问题及传统比例-积分-微分( PID)控制和模糊控制在异步电动机软起动控制中的比较,提出了1种基于模糊PID复合控制的异步电动机软起动器的设计方法.根据对电动机起动特性的分析,在异步电动机起动的不同阶段分别采用模糊控制和PID控制,以达到最佳的起动效果.仿真结果表明,这种复合控制方法解决了常规PID控制参数整定困难的问题,并克服了模糊控制存在静差及振荡现象的缺点,因此这种复合控制方案是正确的、可行的.%Considering the very large direct starting current of the asynchronous motor and the compassion of traditional proportion-integral-derivative (PID) control with fuzzy control in the soft-starting , this paper presents a design method of asynchronous motor soft starter based on the fuzzy PID compound control. According to analysis of the starting characteristic of the asynchronous motor, under the different starting stages, fuzzy control and PID control are used respectively to achieve the best starting results. The simulation results show that the compound control method can settle the parameter tuning difficult issues by using normal PID control, and overcome the steady state error and the oscillation in fuzzy controller, so the compound control method is correct and valid.
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