一种电压型逆变器自适应PID控制方法  

An Adaptive PID Control Method for Voltage Source Inverter

作　　者：侯波[1,2] 穆安乐[1] 刘俊伟[2] 董锋斌[2] 

机构地区：[1]西安理工大学,机械与精密仪器工程学院,陕西西安710048 [2]陕西理工大学,电气工程学院,陕西汉中723003

出　　处：《电力电子技术》2017年第2期65-67,共3页Power Electronics

基　　金：陕西省教育厅专项科研项目(15JK1120);陕西理工学院科研基金项目(SLGKY15-46)~~

摘　　要：针对传统逆变器比例积分微分(PID)控制性能不佳的问题,提出一种电压型逆变器自适应PID控制方法。在传统PID控制基础上,增加3个控制项:基于反馈线性化的非线性项、非线性切换增益项、自适应PID控制项。采用Lyapunov理论证明了所提控制方法是全局稳定的。实验结果表明,相对于传统PID控制,所提控制方法响应速度快、稳态误差小、输出电压谐波含量很少,对线性和非线性负载具有强鲁棒性。Aiming at the conventional proportional integration derivative （PID） control method for voltage sources inverters exits unsatisfactory control performances, an adaptive PID control method for voltage source inverters is proposed.In addition to the conventional PID control term, the proposed control method also contains three other terms： nonlinear terms based on feedback linoarization;the nonlinear switching gain term; the adaptive PID control terms.The Lyapunov theory proves that the proposed control method is global stability.Experimental results show that comparing to the conventional PID control method the proposed control method has high response speed, small steady stateerror, low harmonic content in output voltage, and a strong robustness against the linear or nonlinear loads.

关 键 词：逆变器 比例积分微分控制 自适应控制 

分 类 号：TM464[电气工程—电器]