基于数学形态学的电网PMU信号的扰动检测方法  

Disturbance Detection Approach from Power System PMU data Based on Mathematical Morphology

作　　者：何潜[1] 陈刚 王予疆[3] 雷雨[1] 梁伟[1] 李军[1] 古志明[1] 

机构地区：[1]重庆市电力公司,重庆400014 [2]南方电网科学研究院,广州510080 [3]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400044

出　　处：《华东电力》2012年第2期211-215,共5页East China Electric Power

基　　金：国家973计划资助项目(2009CB724505-1);重庆市电力公司科技项目(20100658)~~

摘　　要：为保证电网的安全可靠运行,运行人员需要及时掌握电力系统的扰动情况,并采取相应的控制措施。提出了一种基于数学形态学原理进行电力系统在线扰动检测的方法。介绍了数学形态学的基本原理,分析了扰动检测中结构元素的选取,给出了扰动检测的整个流程,通过仿真算例和实测的各种扰动信号进行验证,结果表明本文方法能够准确有效地对电力系统PMU信号进行扰动检测,具有较高的实际应用价值。To ensure the safe operation of power system,operators must obtain timely knowledge of the power system disturbance and take appropriate countermeasures.This paper proposes an approach for detecting the disturbance based on mathematical morphology.The principle of mathematical morphology is produced;the selection of structural elements in disturbance detection is analyzed;the whole working flow of disturbance detection is formulated.Finally,simulation calculation and various detected disturbance data are used to verify that the approach can exactly and effectively detect the disturbance from the power system PMU signals,showing high practical value.

关 键 词：数学形态学 一阶求导法 软阈值处理法 扰动检测 PMU信号 

分 类 号：TM72[电气工程—电力系统及自动化]