电力系统失步振荡中心自动定位研究  

Research on Automatic Positioning of Out-of-step Oscillation Center in Power System

作　　者：汪祝年 刘桂林[2] 武江斌 

机构地区：[1]国网镇江供电公司,江苏镇江212000 [2]国网南京供电公司,江苏南京210019

出　　处：《陕西电力》2016年第2期5-8,21,共5页Shanxi Electric Power

基　　金：国家电网公司科技项目(XT71-12-009)

摘　　要：振荡中心自动定位能够为电网中失步解列装置正确动作提供依据,对失步解列装置和失步保护之间的协调配合具有重要意义。针对大电网发生失步振荡时,振荡中心飘逸而无法准确捕捉的问题,推导出了振荡中心的表达式并给出了自动搜索振荡中心思路。基于系统设计理念及采用全局实时信息的搜索系统,提出了振荡中心自动定位体系结构。该体系结构具有分层分布的特点,能够实现对全网的集中决策和满足自动搜索失步振荡中心的需求,对提高电网安全稳定运行水平具有重要意义。The automatic positioning of oscillation center can provide the basis for the cmxect action of out-of-step separation device, and has an important significance for the coordination between the out-of-step protection and out-of-step separation. Once out-of- step oscillation occurred in large grid, the oscillation center will drift and is difficult to capture. To this end, the paper deduces the expression of the oscillation center, and gives the thoughts about the automatic search of the oscillation center. Meanwhile, the paper proposes the oscillation center architecture of automatic positioning by using global real-time information search system based the system design. The architecture is of layered distribution, and can realize the centralized decision-making of the whole grid to meet the demand of the automatic search of out-of-step oscillation center.

关 键 词：失步振荡 振荡中心 自动定位 体系结构 集中决策 

分 类 号：TM74[电气工程—电力系统及自动化]