地区电网运行方式评估方法  

The evaluation method of regional power grid operation mode

作　　者：田洪[1] 张焰[1] 张益波[2] 

机构地区：[1]上海交通大学电气工程系,上海200240 [2]上海市电力公司,上海200122

出　　处：《电力系统保护与控制》2009年第20期93-98,共6页Power System Protection and Control

基　　金：国家高技术研究发展计划(863计划)2006AA05z214

摘　　要：针对地区电网运行方式编制工作需要,在考虑电网运行安全性、可靠性、电能质量,以及运行经济性基础上,建立了一套用于评估地区电网运行方式的多层次指标体系。提出了等值概率评估算法,通过对单一设备负载率裕度等运行属性的统计和概率分析,量化电网在该属性上的整体水平,并采用理想点逼近技术对各分项指标进行归一化处理。在指标计算过程中,为计及电网预想事故下负荷转移方案对电网运行方式评估的影响,通过变电站层和网络层的两层拓扑集搜索算法实现对负荷转移路径和操作复杂度的评估。最后,通过对上海某地区电网的算例分析,说明所提出的评估方法的有效性。A set of index framework for evaluating the operation mode of regional power grid is established to meet the demand of operation mode scheduling. The index framework consists of several levels and takes security, reliability, power quality and operation efficiency into consideration. A so called ＇probabilistic evaluation algorithm＇ is developed to quantify the overall level of the power grid on a certain aspect, such as the margin of load rate, etc, through statistic and probabilistic analysis towards each single equipment. The TOPSIS method is also brought in to normalize different indexes. During the calculation, a topology searching method is brought in to evaluate the load transfer schedule. In the end, this evaluation method is proved effective through the practical application in a regional power grid of Shanghai.

关 键 词：地区电网 运行方式 评估 指标体系 等值概率评估算法 

分 类 号：TM732[电气工程—电力系统及自动化]