| 动态电压恢复器控制策略研究 |
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| 引用本文： | 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. |
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| 作者姓名： | 袁书波 高庆仙 耿亮 李双 谷晓鹏 |
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| 作者单位： | 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 |
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| 摘 要： | 动态电压恢复器是抑制电压跌落对敏感负荷影响的有效装置。当动态电压恢复器工作在不对称电压下时,逆变器将会持续地从电源侧吸收有功功率,引发直流侧电压泵升,严重时会损坏储能及功率开关器件。针对该问题,文章提出一种复合控制策略,即采用相移控制技术来减少逆变器对有功能量的吸收,从而抑制动态电压恢复器直流电压的泵升;采用双闭环控制技术对电网电压跌落进行抑制,提高了负载的稳定性。仿真结果表明,该复合控制策略可使动态电压恢复器具有更好的负载适应性,且使直流侧电压得到很好的抑制。
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| 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 |
Research of Control Strategy of Dynamic Voltage Restorer |
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| YUAN Shu-bo
,
GAO Qing-xian
,
GENG Liang
,
LI Shuang
,
GU Xiao-peng.Research of Control Strategy of Dynamic Voltage Restorer[J].Industry and Automation,2011,37(11):53-56. |
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| Authors: | YUAN Shu-bo GAO Qing-xian GENG Liang LI Shuang GU Xiao-peng |
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| Affiliation: | YUAN Shu-bo1,GAO Qing-xian1,GENG Liang1,LI Shuang1,GU Xiao-peng2(1.The Fourth Agency of North China Petroleum Engineering Construction Co.,Ltd.,Renqiu 062552,China.2.Technical Monitoring Center of Petro China Changqing Oilfield Company,Xi'an 710021,China) |
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| 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... |
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| Keywords: | dynamic voltage restorer control strategy phase-shift control double closed loop control voltage sag |
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