简述了2012年7月30日和7月31日在印度发生大停电事故的过程.通过分析2次事故之间造成系统崩溃规模差异的原因,指出:缺乏主动控制措施导致大量潮流跨网转移超出电网转供能力是印度大停电的关键原因,而由输电断面开断事件自动触发集中切机和切负荷控制是防止类似事故发生的最有效的紧急控制措施,并可以从风险的观点来审视其经济上的合理性.从紧急控制技术的视角,总结了为保障控制有效性而需要进一步深化的工作,包括装置判据的研究、动作逻辑与系统响应交互影响的分析、控制效果对电网运行工况的适应性校核、紧急控制措施运行管理的加强等.%This paper presents a simplified description of the event evolution of the India power blackouts on the 30th and 31st of July in 2012.With the analysis of the technical causes leading to the difference in scale of system collapse between the 2 blackouts, it is pointed out that the key cause of both events is the indirect transfer capability exceeded by cross-grid rerouting of large power flow due to lack of active control measures.While the centralized generator tripping and load shedding automatically triggered by the sudden loss event of transmission interface are the most effective emergency control measures for the prevention of similar blackouts, the economic rationality of which can be assessed from the viewpoint of risk reduction.From the perspective of emergency control technology, it is concluded that several fundamental measures need to be strengthened to ensure the effectiveness of the control, including research on fault identification criterion, analysis of mutual influence between control logic and system response, verification of adaptability of control effect to system operating conditions, and tightening up the operational management of emergency control measures.
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