电力系统及其自动化学报2017，Vol.29Issue(8)：131-137,7.DOI:10.3969/j.issn.1003-8930.2017.08.020
电压正序分量故障检测法的动态电压补偿器设计
Design of Dynamic Voltage Restorer Based on Fault Detection Method of Positive Sequence Voltage Component
陈厚合 1王凯 1程悦1
作者信息
- 1. 东北电力大学电气工程学院,吉林 132012
- 折叠
摘要
Abstract
To improve the rapidity and accuracy of detection signal of voltage sag,a fault detection method of positive-sequence voltage component is proposed in this paper. First,in the three-phase system constructed by using single-phase voltage,positive-sequence voltage calculator is introduced into the simulation system to suppress the influence of harmonics on the accuracy of detection signals. In addition,to enhance the compensation effect on the specified orders of harmonics,harmonic compensation control is added into the original control strategy for the dynamic voltage compen-sator. Then,voltage sag signal can be detected using the proposed controller. Finally,a real system simulation model is established using Matlab/Simulink,and the results show that the proposed method can effectively improve the rapidity and accuracy of signal detection;and it not only eliminates the specified orders of harmonics in the system,but also im-proves the power quality.关键词
电压暂降/谐波补偿/电压正序分量/动态电压补偿器/电能质量Key words
voltage sag/harmonic compensation/positive-sequence voltage component/dynamic voltage restorer/power quality分类
信息技术与安全科学引用本文复制引用
陈厚合,王凯,程悦..电压正序分量故障检测法的动态电压补偿器设计[J].电力系统及其自动化学报,2017,29(8):131-137,7.
