| 线间多功能DVR的工作机理及仿真分析 |
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| 引用本文： | 刘子维,涂春鸣,姜 飞,杨 健,魏 钊.线间多功能DVR的工作机理及仿真分析[J].电力系统保护与控制,2016,44(21):41-47. |
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| 作者姓名： | 刘子维 涂春鸣 姜 飞 杨 健 魏 钊 |
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| 作者单位： | 国家电能变换与控制工程技术研究中心湖南大学，湖南 长沙 410082,国家电能变换与控制工程技术研究中心湖南大学，湖南 长沙 410082,国家电能变换与控制工程技术研究中心湖南大学，湖南 长沙 410082,国家电能变换与控制工程技术研究中心湖南大学，湖南 长沙 410082,国家电能变换与控制工程技术研究中心湖南大学，湖南 长沙 410082 |
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| 基金项目： | 国家自然科学基金项目(51377051) |
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| 摘 要： | 动态电压恢复器(DVR)是一种电能质量的高效治理装置。提出了一种中压馈线间共直流侧的多功能DVR拓扑，包含两个串联型变流器。其中一组用于滤除馈线上非线性负载产生的电压谐波，并维持直流侧电压稳定。另一组具有动态电压补偿功能，可实现其他馈线上的电压扰动抑制，并在负载侧发生短路故障时，具有快速故障电流限制功能。结合滤波与稳压控制、电压电流双闭环比例谐振控制，分析了拓扑运行机理、切换过程。仿真结果验证了所提拓扑及控制策略的正确性。
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| 关 键 词： | 动态电压恢复器 馈线间 多功能 谐波补偿 故障电流限制 |
| 收稿时间： | 2015/10/30 0:00:00 |
| 修稿时间： | 2016/1/21 0:00:00 |
Mechanism and simulation analysis of multi-functional interline DVR |
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| LIU Ziwei,TU Chunming,JIANG Fei,YANG Jian and WEI Zhao.Mechanism and simulation analysis of multi-functional interline DVR[J].Power System Protection and Control,2016,44(21):41-47. |
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| Authors: | LIU Ziwei TU Chunming JIANG Fei YANG Jian and WEI Zhao |
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| Affiliation: | National Electric Power Conversion and Control Engineering Technology Research Center Hunan University,Changsha 410082, China,National Electric Power Conversion and Control Engineering Technology Research Center Hunan University,Changsha 410082, China,National Electric Power Conversion and Control Engineering Technology Research Center Hunan University,Changsha 410082, China,National Electric Power Conversion and Control Engineering Technology Research Center Hunan University,Changsha 410082, China and National Electric Power Conversion and Control Engineering Technology Research Center Hunan University,Changsha 410082, China |
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| Abstract: | Dynamic voltage restorer (DVR) is one of the fast and efficient compensation devices for the power quality. A multi-function DVR topology structure with common DC side is presented. It is installed between medium voltage feeders and includes two series converters. One of them is to filter the voltage harmonics generated by nonlinear loads on one feeder, and to keep DC-link voltage constant. The other can compensate dynamic voltage and suppress the voltage disturbance. It also have a fast current limiting function under the short-circuit fault conditions. Combined with filtering and voltage control, and double closed loop proportional-resonant control of voltage and current, the operational mechanism and the switching process of the new topology are introduced. Finally, simulation results show the validities of the proposed topology and control scheme. This work is supported by National Natural Science Foundation of China (No. 51377051). |
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| Keywords: | dynamic voltage restorer interline multifunction harmonic compensation fault current limiting |
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