CAJ | 학술논문

针对电网的连锁跳闸现象，对受初始故障波及的连锁受扰支路及其与电网节点的关联关系进行分析，并提出一种筛选初始故障、连锁受扰支路以及对连锁受扰支路的关联节点进行划分的算法。首先根据连锁跳闸现象中连锁受扰支路的连锁跳闸表现，以及继电保护的动作行为，给出一种评价连锁受扰支路受扰严重性的表达形式，在此基础上给出根据严重性对连锁受扰进行筛选的原则，然后分析初始故障切除后剩余系统支路的电流和节点注入功率之间关系，进而在综合连锁受扰支路的严重性及其与节点关联作用的基础上，形成筛选初始故障支路及其相应的严重连锁受扰支路以及对严重连锁受扰支路的关联节点进行划分的算法，可为电网分析连锁跳闸现象以及阻断连锁跳闸提供思路和借鉴，算例分析表明该算法的合理性。
침대전망적련쇄도갑현상，대수초시고장파급적련쇄수우지로급기여전망절점적관련관계진행분석，병제출일충사선초시고장、련쇄수우지로이급대련쇄수우지로적관련절점진행화분적산법。수선근거련쇄도갑현상중련쇄수우지로적련쇄도갑표현，이급계전보호적동작행위，급출일충평개련쇄수우지로수우엄중성적표체형식，재차기출상급출근거엄중성대련쇄수우진행사선적원칙，연후분석초시고장절제후잉여계통지로적전류화절점주입공솔지간관계，진이재종합련쇄수우지로적엄중성급기여절점관련작용적기출상，형성사선초시고장지로급기상응적엄중련쇄수우지로이급대엄중련쇄수우지로적관련절점진행화분적산법，가위전망분석련쇄도갑현상이급조단련쇄도갑제공사로화차감，산례분석표명해산법적합이성。
To deal with cascade tripping in power network,the disturbed branches affected by the initial power cascading failure and the correlation between the disturbed branches and the nodes of power network were analysed.An algorithm for selecting the initial failures and the seriously dis-turbed branches and classifying the related nodes was proposed.Firstly,an evaluation expression for evaluating the severity of the disturbed branches was presented,which was based on the performance of the cascade tripping of the disturbed branches and the operating action of the relay of disturbed branches.A principle of selecting the disturbed branches in relation to the severity of the disturb-ance was proposed.The correlation between the current of the branches in the remaining system after removing the disturbed branches and the injection power of the nodes was analysed.The algorithm was proposed by combining the severity of the cascading disturbed branches and the correlational nodes.A computation example in IEEE39 system proves the rationality of the proposed algorithm.