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文章摘要
一种改进的三相不平衡电压暂降检测算法
An improved three-phase unbalanced voltage sag detection algorithm
Received:June 16, 2020
Revised:June 16, 2020
DOI:
10.19753/j.issn1001-1390.2023.08.011
中文关键词
:
三相不平衡
电压暂降
对称分量原理
直流分量快速提取
英文关键词
:
three-phase unbalance, voltage sag, symmetrical component method, rapid extraction of DC component
基金项目
:
Author Name
Affiliation
E-mail
pengcheng
University of Electronic Science and Technology of China
201821040311@std.uestc.edu.cn
caoyu
University of Electronic Science and Technology of China
201921040206@std.uestc.edu.cn
caoyu
University of Electronic Science and Technology of China
442910862@qq.com
haoxiaohong
*
University of Electronic Science and Technology of China
haoxiaohong@uestc.edu.cn
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中文摘要
:
目前电压暂降成为了影响电能质量的主要因素,对电网电压进行快速且准确地检测是进行电压暂降治理的前提。文中针对三相不平衡电压暂降,依据对称分量原理提出了一种改进的三相不平衡电压暂降的检测算法。该算法在双dq变换的基础上,首先将所检测的电压信号进行正序负序坐标变换,而后通过三个连续的采样点对坐标变换后dq坐标系下的正序、负序分量中的直流成分进行快速提取,继而通过幅值与相位的计算可分别求得电压正序、负序电压的幅值与相位。最后,MATLAB/Simulink仿真结果验证了该方法的先进性与有效性。
英文摘要
:
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