基于模糊控制的开关电源的仿真研究

Simulation Research of Switching Power Supply Based on Fuzzy Control

针对开关电源这一非线性对象传统 PID控制的不足 ,提出了一种基于模糊控制的新的智能型控制方法 ,并在 MATLAB环境下实现了仿真。实验证明 :与 PID控制相比 ,模糊控制动态响应快、超调量小、负载变化引起输出电压的变化小。

To deal with the weakness of the PID control in the switching power supply ,a non-linear object, a new intelligent control method based on the fuzzy control is presented and simulated under the MATLAB.The experiment results indicate that comparae to the PID control ,the fuzzy control has a lot of merits,such as,fast transient response, small turn-on overshoot, small output voltage fluctuations with output current changes.