改进的半桥逆变器极点优化配置无差拍控制(英文)

A Modified Deadbeat Control Strategy with Poles Optimal Assignment for Single Phase Half-bridge Inverter

提出了一种改进型的无差拍控制 ,通过极点的优化配置来提高逆变系统的鲁棒性。简要介绍了无差拍控制的基本原理及其极点、零点的分布 ,得出系统的稳定性容易受到滤波器参数漂移影响的结论。为了提高系统鲁棒性 ,通过改进算法 ,使极点尽量接近 z平面的坐标原点。计算机仿真和基于状态观测器的实验结果证明 ,这种方法可以精确跟踪给定正弦 ,具有快速抑制扰动 。

This paper proposed a modified deadbeat control to improve the robustness of the inverter system by optimal assigning the poles. The principle of deadbeat control is briefly described and the assignment of the traditional system poles and zeros are discussed which show the stability of the system is influenced by the drift of the load and the parameter of LC filter. In order to improve the robustness of the inversion system, the basic equation of deadbeat control for inversion system is modified to assign the poles approaching the coordinate origin as much as possible. Computer simulation and experimental results with modified deadbeat control verified it.