新型PID控制在DC-DC变换器中的应用

Study on The Expet PID Control for DC-DC Converter

DC—DC变换器高性能控制研究成为变换器的一个重要研究方向。本文基于DSP控制的DC-DC移相全桥变换器,分别运用常规PID和参数自适应调整的专家PID控制方法进行控制,对两种控制方法进行比较,并给出了参数自适应调整的专家PID控制器的详细设计。实验结果证明:两种控制方法都能使系统运行平稳,参数自适应调整的专家PID控制策略比常规PID具有更好的静、动态特性。

Artificial intelligence-based control strategies of DC-DC converter have been a focus in the literature, tn this paper, based on phase-shifted full bridge DC-DC converter that DSP controls, the converter is controlled by general PID and expert PID separately, the two control strategies are compared in the same converter. The paper provides particular design of the expert PID controle. Experimental.results are illustrated to show that general PID and expert PID provided very good static performance with moment of inertia parameter Variations all. At the same time, expert PID have more dynamic performance.