直流输电对交直流互联系统自组织临界性的影响分析  

DC Transmission Impact Analysis on AC/DC Interconnected System Self-organized Criticality

作　　者：屠竞哲[1] 甘德强[1] 于洋[2] 辛焕海[1] 汪震[1] 史济全 

机构地区：[1]浙江大学电气工程学院,浙江省杭州市310027 [2]国网北京经济技术研究院,北京市100052 [3]国家电网华东电力调控分中心,上海市200002

出　　处：《电力系统自动化》2012年第11期7-13,43,共8页Automation of Electric Power Systems

基　　金：国家重点基础研究发展计划(973计划)资助项目(2004CB217902);国家自然科学基金资助项目(50595411);中央高校基本科研业务费专项资金资助项目(2010QNA4008;2011QNA4012)~~

摘　　要：提出了一种考虑紧急控制保护装置及直流系统概率动作特性的连锁故障动态仿真模型,应用该模型对2010年华东电网实际系统进行了动态仿真。在不同的直流运行方式、直流控制参数、交直流互联方式、交直流传输容量分配条件下,计算了系统的停电功率—停电概率幂律曲线,分析了直流输电对系统自组织临界性的影响。结果表明,在某些系统中选取合适的直流输电模式可以减小连锁故障及大停电的发生概率。A dynamic cascading failure model considering the probability characteristics of emergency control and protection device and DC system is proposed, with which dynamic simulation of the 2010 East China power grid is performed. Under conditions of different DC operation modes, DC control parameters, AC/DC interconnection modes, and AC/DC capacity distribution, the outage power-outage probability power law curves of the system are calculated, and the impact of the DC transmission On system self-organized criticality is analyzed. It can be seen from the results that in certain systems, the probability of cascading failure and blackout can be reduced by selecting a suitable DC transmission mode. This work is supported by National Basic Research Program of China （973 Program）

关 键 词：连锁故障 大停电 直流输电 交直流互联方式 交直流容量分配 自组织临界性 

分 类 号：TM721.1[电气工程—电力系统及自动化]