动态电压恢复器电压跌落检测算法与控制技术综述

摘要/Abstract

摘要：

随着新能源技术的发展,电力系统网络结构将日趋复杂,区域性供电不平衡和负荷波动较大等问题将导致系统电压跌落现象频发,针对性的治理工作急需开展。动态电压恢复器（DVR）作为一种电压跌落治理设备,可迅速补偿电压凹陷,恢复负荷侧的电压波形,从而使用户端免受影响。本文从分析动态电压恢复器的国内外研究现状为出发点,对动态电压恢复器的电压跌落检测算法、电压补偿策略、动态电压跟踪控制方法和系统控制策略进行了详细分析和比较,为后续研究工作的深入奠定了基础。

关键词: 动态电压恢复器, 响应速度, 多DQ旋转变换, 电压跌落检测算法

Abstract:

With extensive applications of renewable energy, the power quality issue is becoming complex with a lot of uncertain factors, such as the geographical unbalance of power grid and load fluctuations, then the requirement for solving voltage sag become urgent. When the grid voltage sag occurs, a dynamic voltage restorer (DVR) acts rapidly for compensation so as to maintain the load voltage. This paper mentions current research status of DVR at home and abroad, and introduces various voltage sag detection algorithms, compensation strategies, dynamic tracking methods and the system control strategies of DVR. With detail analyse and comparison, this part gives the guidance to the subsequent research work.

Key words: Dynamic voltage restorer, response time, multiple DQ transformation, voltage sag detection algorithm

中图分类号:

TM464

陈国栋. 动态电压恢复器电压跌落检测算法与控制技术综述[J]. 电气工程学报, 2015, 10(5): 20-33.

Chen Guodong. A Survey on Detection and Control of Dynamic Voltage Restorer[J]. Journal of Electrical Engineering, 2015, 10(5): 20-33.

图/表 3

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