CAJ | 학술논문

针对电网的连锁过载跳闸现象产生的脆弱性，提出一套识别电网中脆弱支路集合的算法。首先通过对初始故障在故障传播过程中的表现行为进行分析，给出评价初始故障支路脆弱性的指标，并提出用以分析初始故障支路脆弱性的基本结构和算法，然后在此基础上对基本分析结构和算法进行扩展，建立分层分析结构和综合分析结构，使得对初始故障支路的脆弱性分析更加灵活全面。所提出的分析结构和算法提供一种比较规范的分析初始故障支路脆弱性的形式，并可方便用来识别电网中的脆弱支路环节。最后通过IEEE 39节点系统上的算例对该算法的操作和合理性进行进一步的说明。
침대전망적련쇄과재도갑현상산생적취약성，제출일투식별전망중취약지로집합적산법。수선통과대초시고장재고장전파과정중적표현행위진행분석，급출평개초시고장지로취약성적지표，병제출용이분석초시고장지로취약성적기본결구화산법，연후재차기출상대기본분석결구화산법진행확전，건립분층분석결구화종합분석결구，사득대초시고장지로적취약성분석경가령활전면。소제출적분석결구화산법제공일충비교규범적분석초시고장지로취약성적형식，병가방편용래식별전망중적취약지로배절。최후통과IEEE 39절점계통상적산례대해산법적조작화합이성진행진일보적설명。
ABSTRACT:Aiming at the vulnerability caused by cascading overload tripping phenomenon in the power network, an algorithm for identifying the vulnerable branches in power network is proposed. Firstly, by analyzing the behaviors of the initial failure in the process of fault propagation, a set of indexes for evaluating the vulnerability of the initial fault branches is proposed, and a basic structure and algorithm for analyzing the vulnerability of the initial fault branches are proposed. And then on this basis, the basic structure and algorithm is extended to a stratified analysis structure and a comprehensive analysis structure, which makes the analysis on the vulnerability of the initial fault branches more flexible and comprehensive. The proposed analysis structure and algorithm can provide a more normative form for analyzing the vulnerability of the initial fault branches, and can be easily used to identify the vulnerable parts composed of some initial fault branches. Some examples in IEEE 39 node system demonstrates the operation process of the algorithm and verifies its rationality.