摘要
基于统一电能质量调节器(UPQC)对电能质量进行补偿时的同步性问题和控制的复杂性两个方面的考虑,在对UPQC拓扑结构与工作原理的分析基础上,提出了基于单周期控制的统一电能质量调节器控制策略,完成对UPQC中的DVR和APF两部分的同步控制,并且结构简单、易于实现。在理论分析的基础上,应用Simulink对单周期控制的统一电能质量系统进行了建模和仿真,仿真结果表明,该方法能在一个开关周期内消除稳态误差,提高UPQC的稳定性和对电能质量补偿的快速性,很好地证明了该拓扑的实用性和控制方法的有效性。
Based on analysis of the configuration and principle of power quality by unified power quality conditioner （UPQC）, a one-cycle control method for UPQC is designed to realize the synchronism compensating and reduce the control method. In this paper, one-cycle control method is used to control the active power filter （APF） and dynamic voltage restorer （DVR） in the UPQC at the same time. The theoretically analysis and simulation result show this method can remove the steady-state error in on-off cycle controller and improve the stability and rapidity of the UPQC to get preferable control effect in improving power quality.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2009年第22期28-33,共6页
Power System Protection and Control
