摘要
结合灰色系统理论和变结构控制理论,设计一种新型三相有源电力滤波器的灰色变结构控制器。此控制器是在传统VSC的滑模面附近增设边界层,同时将饱和函数代替传统变结构中符号函数,再通过灰色预测下一状态值来调整滑模控制增益大小,有效地减弱了传统变结构控制的“抖动”现象。仿真结果表明:在GVSC控制下的APF具有更好的补偿效果,且直流电容电压更稳定。
In this paper,the grey prediction is integrated into the VSC to develop a grey variable structure controller（GVSC） for a three-phase active power filter（APF）. The principle of this controller is adding a boundary layer around the sliding surface of conventional variable structure control, the function saturation replacing the function sign, and next state is predicted by grey theory to regulate the gain of sliding mode control ahead of time. Chatting of conventional variable structure is reduced efiectively. Simulation results verify that APF with GVSC has better compensation performace and capacitor voltage has better stability.
出处
《继电器》
CSCD
北大核心
2006年第6期49-52,63,共5页
Relay
