吉林大学学报（信息科学版）2017，Vol.35Issue(6)：629-635,7.
基于改进型滑模控制的光伏并网系统
Photovoltaic Grid Connected System Based on Improved Sliding Mode Control
摘要
Abstract
In order to solve the chattering problem of sliding mode control,a three-phase voltage inverter based on improved sliding mode variable structure is designed for photovoltaic grid-connected control system.The existence of the switching function is deduced by using the sliding mode switching function, the obtained sliding mode switching function is"expanded",and the incremental distance is obtained through adaptive control to stabilize the output voltage,the total harmonic distortion is reduced,and the sliding mode control of the chattering problem is solved.The theory analyzes the transient performance of sliding mode variable structure control strategy contrastively in the Matlab platform.The result indicates that the output voltage improved is more stable,the total harmonic distortion is reduced to below 0.62%and the problem of chattering in sliding mode control is solved.关键词
光伏并网/滑模控制/总谐波失真/抖振问题Key words
photovoltaic grid-connected/sliding mode control/total harmonic distortion/chattering problem分类
信息技术与安全科学引用本文复制引用
刘伟,宋伟,刘志杰..基于改进型滑模控制的光伏并网系统[J].吉林大学学报（信息科学版）,2017,35(6):629-635,7.基金项目
国家自然科学基金资助项目(N11372071) （N11372071）
