Study on LVRT Control Strategy of Eliminating Harmonic Current

ZHANG Jian-hua; WANG Jian; CHEN Xing-ying; MO Yue-ping; XIN Fu-long

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Study on LVRT Control Strategy of Eliminating Harmonic Current

更新时间：2026-07-10

- Study on LVRT Control Strategy of Eliminating Harmonic Current
- Vol. 17, Issue 1, Pages: 20-25(2012)
- 作者机构：
  
  1. 扬州大学能源与动力工程学院
  2. 水资源高效利用与工程安全国家工程研究中心
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM761.1;TM614
- Published：2012
- 稿件说明：
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ZHANG Jian-hua, WANG Jian, CHEN Xing-ying, et al. Study on LVRT Control Strategy of Eliminating Harmonic Current[J]. 2012, 17(1): 20-25.
DOI：

ZHANG Jian-hua, WANG Jian, CHEN Xing-ying, et al. Study on LVRT Control Strategy of Eliminating Harmonic Current[J]. 2012, 17(1): 20-25. DOI：

摘要

为了提高双馈电机及其控制系统对电网电压跌落的适应能力

实现双馈电机的低电压穿越

文章从双馈电机的数学模型着手分析

着重研究了电网电压跌落时刻

不同电压相角所激起的双馈电机电磁过渡过程.并在此基础上提出了电压跌落产生的机理、特性.通过对不同电压相角度的定性分析提出一种消除过渡过程中谐波分量的方法.仿真结果表明

不同的电压相角度对电压跌落的过渡过程影响很大

同时通过对转子励磁电压的控制

能够完全消除电压跌落时定转子侧的谐波电流

实现对转子侧变换器保护的目的.

Abstract

In order to improve the voltage sag ability of doubly fed induction generator(DFIG) and its control system and to realize the low voltage ride-through(LVRT) function of DFIG

this paper analyzes the math model and focuses on the time when voltage sag happens

and the electromagnetic transition process with different voltage phase angle.On this basis we give the mechanism and characteristics of voltage sag and according to the qualitative analysis of different voltage phase angles give a method of ...

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