| 动态电压恢复器的变结构控制研究 |
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| 引用本文： | 张慧洁,王奔,田甜.动态电压恢复器的变结构控制研究[J].电测与仪表,2011,48(10):42-46,54. |
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| 作者姓名： | 张慧洁 王奔 田甜 |
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| 作者单位： | 西南交通大学电气工程学院,成都,610031 |
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| 摘 要： | 动态电压恢复器(DVR)是解决电网电压跌落的一种经济有效的方案,其控制器性能的好坏直接影响到其补偿效果.为此,本文基于变结构控制采用一种新的控制方法.考虑到DVR的数学模型在dq坐标系下是一个非线性耦合系统,首先采用逆系统方法将原系统线性化解耦,构造出伪线性系统.然后,运用变结构控制理论,设计出这个伪线性系统的变结构控...
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| 关 键 词： | 动态电压恢复器 电压跌落 变结构控制 逆系统方法 |
Research on Dynamic Voltage Restorer Based on Variable Structure Control Theory |
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| ZHANG Hui-jie,WANG Ben,TIAN Tian.Research on Dynamic Voltage Restorer Based on Variable Structure Control Theory[J].Electrical Measurement & Instrumentation,2011,48(10):42-46,54. |
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| Authors: | ZHANG Hui-jie WANG Ben TIAN Tian |
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| Affiliation: | (Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | The dynamic voltage restorer(DVR) is effectively used in mitigating voltage sags.The controller’s performances play a key role in DVR with excellent functions.This paper proposes a novel control method according to the theory of variable structure control theory.Considering that DVR is a coupling nonlinear system in synchronous rotating dq coordinate system,firstly,the original system model of DVR is linearized and decoupled to be two pseudo-linear systems.Then adopt variable structure control theory,by which the variable structure control laws of the pseudo-linear systems are designed.At last,simulations are proceeded to verify the controller performance basing on above theory analysis.The simulation results verify the viability and effectiveness of the control algorithm. |
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| Keywords: | DVR voltage sag variable structure control inverse-system method |
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