限流式动态电压恢复器及其参数设计

唐君华; 涂春鸣; 姜飞; 刘子维; 郭成; 帅智康

引用本文:	唐君华,涂春鸣,姜飞,等.限流式动态电压恢复器及其参数设计[J].电力系统保护与控制,2015,43(24):115-121.
	TANG Junhua,TU Chunming,JIANG Fei,et al.Dynamic voltage restorer with current limiting function and its parameter design[J].Power System Protection and Control,2015,43(24):115-121

【打印本页】【下载PDF全文】【查看/发表评论】【EndNote】【RefMan】【BibTex】

←前一篇|后一篇→

过刊浏览高级检索

本文已被：浏览 4682次下载 2669次	码上扫一扫！
分享到：微信更多字体:加大+\|默认\|缩小-
限流式动态电压恢复器及其参数设计
唐君华¹, 涂春鸣¹, 姜飞¹, 刘子维¹, 郭成², 帅智康¹
1.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;2.云南电力试验研究院(集团)有限公司，云南昆明 650217

摘要:

为优化电网正常运行时的电能质量，针对电力系统短路故障问题，提出了一种限流式动态电压恢复器(Dynamic voltage restorer with fault current limiting, DVR-FCL)拓扑结构。以限流阻抗值为目标函数，考虑直流侧电压整定的参数设计，给出了DVR-FCL的直流侧电压、输出滤波器、串联变压器参数、串联变流器、直流侧电容的整定方法。利用PSCAD/EMTDC仿真软件验证了DVR-FCL对电压跌落及短路故障的动作特性。结果表明，所提拓扑结构和参数设计方法正确，可实现改善电压质量和短路限流的双重功能，保证了电力系统安全性和稳定性。

关键词: 短路故障动态电压恢复器限流器 LC滤波器串联变压器

DOI：10.7667/j.issn.1674-3415.2015.24.018

分类号:

基金项目:国家自然科学基金项目(51377051)

Dynamic voltage restorer with current limiting function and its parameter design

TANG Junhua¹, TU Chunming¹, JIANG Fei¹, LIU Ziwei¹, GUO Cheng², SHUAI Zhikang¹

1.Power Conversion and Control Engineering Technology Research Center (Hunan University), Changsha 410082, China;2.Yunnan Electric Power Test & Research Institute (Group) Co., Ltd., Kunming 650217, China

Abstract:

For the voltage quality optimization under normal power operation, aiming at short-circuit fault in power system, a topology of dynamic voltage restorer with current limiting function (DVR-FCL) is proposed. A parameter design of DVR-FCL based on the objective function of current limiting impedance and the adjustment of DC voltage is introduced. The design methods of the DC link voltage, the output filter, series transformer capacity, the leakage reactance, the series converter and the DC link capacitor are analyzed in detail. The operations of DVR-FCL to voltage sag and short-circuit fault are respectively verified by PSCAD/EMTDC. Simulation results show that the proposed topology and parameters design methods are correct and reasonable, and can effectively realize the double functions of voltage quality improvement and fault current limiting. Thus, it can ensure the security and stability of power system.

Key words: short-circuit fault dynamic voltage restorer fault current limiter LC filter series transformer

X关闭