工矿自动化2011，Vol.37Issue(11)：53-56,4.DOI:32-1627/TP.20111102.1608.016
动态电压恢复器控制策略研究
Research of Control Strategy of Dynamic Voltage Restorer
袁书波 1高庆仙 1耿亮 1李双 1谷晓鹏2
作者信息
- 1. 华北石油工程建设有限公司第四工程处,河北任丘062552
- 2. 中国石油长庆油田公司技术监测中心,陕西西安710021
- 折叠
摘要
Abstract
Dynamic voltage restorer is a device with effective suppression of impact of voltage sag on sensitive load. When dynamic voltage restorer is working in asymmetric voltage, the inverter will continue to absorb active power from the supply side, trigger DC voltage rise, even damage energy storage and power switching devices in severe situation. For the problem, the paper proposed a composite control strategy, which uses phase shift control technology to reduce active power absorbing of the inverter, so as to suppress the rise of DC voltage of dynamic voltage restorer, and uses double closed loop control to suppress voltage sag of power grid to improve load stability. Simulation results showed that the composite control strategy allows the dynamic voltage restorer with better load adaptability, and makes the DC voltage well suppressed.关键词
动态电压恢复器/控制策略/相移控制/双闭环控制/电压跌落Key words
dynamic voltage restorer/control strategy/phase-shift control/double closed loop control/voltage sag分类
矿业与冶金引用本文复制引用
袁书波,高庆仙,耿亮,李双,谷晓鹏..动态电压恢复器控制策略研究[J].工矿自动化,2011,37(11):53-56,4.
