电网中基于整流电压算法的电压凹陷检测

李文江; 范祖台; 李曌成; 丁冠西

引用本文:	李文江,范祖台,李曌成,等.电网中基于整流电压算法的电压凹陷检测[J].电力系统保护与控制,2014,42(24):99-102.
	LI Wen-jiang,FAN Zu-tai,LI Zhao-cheng,et al.Detection of voltage sag based on rectified voltage algorithm in grid[J].Power System Protection and Control,2014,42(24):99-102

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电网中基于整流电压算法的电压凹陷检测
李文江¹, 范祖台¹, 李曌成², 丁冠西³
1.辽宁工程技术大学电气与控制工程学院，辽宁葫芦岛 125105;2.渤海装备辽河重工有限公司，辽宁盘锦 124000;3.国网辽宁省电力有限公司辽阳供电公司，辽宁辽阳 111000

摘要:

针对电气系统中经常出现电压凹陷的现象，为了能够及时诊断出电压凹陷的情况，应用了新的检测算法—整流电压(RV)算法。利用TMS320C40板、滤波器和一些自动化软件等，对正常电压和由不同原因引起的凹陷电压信号进行采集，并根据电压波形以及相应的参数利用整流电压(RV)算法对各种电压信号进行计算、仿真等处理。大量实验结果表明，该算法不仅可以在极短的时间内有效地检测出电压凹陷情况，而且可以节省很大的存储空间和计算量。

关键词: 电压凹陷整流电压仿真快速准确检测

DOI：10.7667/j.issn.1674-3415.2014.24.016

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基金项目:

Detection of voltage sag based on rectified voltage algorithm in grid

LI Wen-jiang¹, FAN Zu-tai¹, LI Zhao-cheng², DING Guan-xi³

1.Faculty of Electrical and Control Engineering, Liaoning Technical University, Huludao 125105, China;2.Liaohe Petroleum Equipment Company, CNPC, Panjin 124000, China;3.Liaoyang Electric Power Company, State Grid Liaoning Electric Power Co., Ltd., Liaoyang 111000, China

Abstract:

For the voltage sag phenomenon of electrical system, and to be able to diagnose the situation promptly voltage sag, we propose a new detection algorithm: RV algorithm. In this study, TMS320C40 board, filter and some other softwares are used to collect some voltage signals which include normal voltage and voltage sag caused by different reasons, and the rectified voltage (RV) algorithm is applied to calculate, simulate and do some other treatment for a variety of voltage signals according to the voltage waveform and the corresponding parameters. Experimental results show that this algorithm can not only effectively detect the voltage sag conditions within a very short period of time, but also can save a lot of storage space and calculation.

Key words: voltage sag RV simulation fast and accurate detection

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