电力系统自动化2017，Vol.41Issue(19)：37-45,9.DOI:10.7500/AEPS20170329005
电力系统主动解列断面搜索方法与孤岛调整策略
Controlled Splitting Sections Searching Method and Islanding Adjustment Strategy for Power System
摘要
Abstract
Controlled splitting is a kind of emergency control measures with real-time dynamic information in a given power system appropriately employed.Implementation of timely and appropriate controlled splitting for a given power system under large disturbance can block the propagation of faults,and system collapse possibly caused by malfunctioning of protection devices can be avoided to some extent,and hence rapid restoration of the whole power system can be attained.Given this background,a controlled splitting method is proposed by quickly searching splitting sections and optimally adjusting the operation strategies of isolated islands.Firstly,an improved version is presented for the spectral clustering algorithm developed in the field of machine learning,and a constrained spectral clustering algorithm proposed to account for the coherent constraints of generators.The problem of searching splitting sections is then transformed into the one of finding generalized eigenvalues.Furthermore,in order to avoid the drawbacks of the traditional k-medoids algorithm that the clustering result is sensitive to the specified initial cluster centers and the search procedure is inefficient,an improved k-medoids algorithm is proposed and employed with the constrained spectral clustering algorithm to search the optimal splitting sections.In each attained island,if any security constraint is violated,adjustments of generation outputs as well as load demands can be carried out to ensure the security.Finally,the IEEE 118-bus test system and the actual power system are employed to demonstrate the feasibility and effectiveness of the proposed method.关键词
主动解列/孤岛调整/约束谱聚类算法/改进k-medoids算法Key words
controlled splitting/islanding adjustment/constrained spectral clustering algorithm/improved k-medoids algorithm引用本文复制引用
程敏,杨文涛,文福拴,谭嫣,李力,杨银国..电力系统主动解列断面搜索方法与孤岛调整策略[J].电力系统自动化,2017,41(19):37-45,9.基金项目
国家高技术研究发展计划(863计划)资助项目(2015AA050202).本文在完成过程中,受到广东电网有限责任公司科技项目(GDKJQQ20153001)资助,谨此致谢.This work is supported by National High Technology Research and Development Program of China (863 Program)(No.2015AA050202). （863计划）
