改进的动态电压恢复器控制策略研究  

Research about Improved Control Strategy of Dynamic Voltage Restorer

作　　者：李艳鹏[1] 连建华[1] 

机构地区：[1]山西电力科学研究院,山西太原030001

出　　处：《低压电器》2009年第6期1-4,50,共5页Low Voltage Apparatus

摘　　要：简要分析了动态电压恢复器(DVR)的开环控制策略,指出了该控制策略对系统的不利影响。提出了一种基于干扰电压前馈的新的控制策略,增加了系统的稳定裕度,提高了系统的动态响应速度。并通过仿真验证了改进控制策略下DVR补偿的有效性。The open-loop control strategy of dynamic restorer was briefly analyzed, and its bad effect on the system was pointed out. A new control strategy based on interference voltage feed-forward adjustment was proposed. The new control strategy not only improved steady margin, but also sped up system dynamic response. The better performance of improved control strategy was then validated by simulation.

关 键 词：电压跌落 动态电压恢复器 控制策略 开环控制 前馈控制 干扰电压 仿真 

分 类 号：TM761[电气工程—电力系统及自动化]