| 基于动态预测和形态学滤波的电压暂降检测研究 |
| |
| 引用本文： | 康军胜,刘桂英,刘思贤,范丰,李琳,粟咏梅.基于动态预测和形态学滤波的电压暂降检测研究[J].电力科学与技术学报,2019,34(1):96-101. |
| |
| 作者姓名： | 康军胜 刘桂英 刘思贤 范丰 李琳 粟咏梅 |
| |
| 作者单位： | 国网山东省电力公司济宁供电公司,山东济宁,272000;长沙理工大学电气与信息工程学院,湖南长沙,410114;国网湖南省电力公司益阳供电公司,湖南益阳,413000;国网湖南省电力公司衡阳供电公司,湖南衡阳,421000;国网湖南省电力公司长沙供电公司,湖南长沙,410004 |
| |
| 基金项目： | 湖南省重点实验室开放基金 |
| |
| 摘 要： | 为满足动态电压恢复器(DVR)对电压暂降特征量实时性和准确性的检测需求,基于采用求导法的αβ-dq变换,研究电压暂降特征量检测原理,采用不同离散序列对该求导方法进行优劣探讨。在此基础上,通过分析改进差分求导法,提出一种针对单相电压暂降特征量的新型求导检测方法,结合待检测信号的动态预测与差分求导法,可有效避免原求导法中产生的"毛刺"现象。该方法选用短延时的形态学滤波器对直流分量进行提取,从而消除可能伴随的谐波以及脉冲噪声在发生电压暂降过程中对检测结果的影响,同时避免常规滤波器的较长时延。仿真结果表明,改进后的检测方法可在短时间内获得电压暂降特征量的准确改变情况,满足DVR对电压暂降特征量检测的要求。
|
| 关 键 词： | 电压暂降 动态预测 求导法 αβ-dq变换 仿真 |
Research on voltage sags detection based on dynamic prediction and morphological filtering |
| |
| KANG Jun-sheng,LIU Gui-ying,LIU Si-xian,FAN Feng,LI Lin,SU Yong-mei.Research on voltage sags detection based on dynamic prediction and morphological filtering[J].JOurnal of Electric Power Science And Technology,2019,34(1):96-101. |
| |
| Authors: | KANG Jun-sheng LIU Gui-ying LIU Si-xian FAN Feng LI Lin SU Yong-mei |
| |
| Affiliation: | (Sate Grid Company of Shandong Jining Electric Power Company, Jining 272000, China;School of Electricaland Information Engineering, Changsha University of Science and Technology, Changsha 410114, China;Sate Grid Company of Hunan Yiyang Electric Power Company, Yiying 413000, China;Sate GridCompany of Hunan Hengyang Electric Power Company, Hengyang 421000, China;Sate GridCompany of Hunan Changsha Electric Power Company, Changsha 410004, China) |
| |
| Abstract: | KANG Jun-sheng;LIU Gui-ying;LIU Si-xian;FAN Feng;LI Lin;SU Yong-mei(Sate Grid Company of Shandong Jining Electric Power Company, Jining 272000, China;School of Electricaland Information Engineering, Changsha University of Science and Technology, Changsha 410114, China;Sate Grid Company of Hunan Yiyang Electric Power Company, Yiying 413000, China;Sate GridCompany of Hunan Hengyang Electric Power Company, Hengyang 421000, China;Sate GridCompany of Hunan Changsha Electric Power Company, Changsha 410004, China) |
| |
| Keywords: | voltage sag dynamic prediction derivation αβ- dq transformation simulation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
