基于联络通道运行方式的城市220kV电网分区策略  

The Strategy of 220kV City Power Grid Based on the Operation Mode of Partition Contact Channel

作　　者：范宏 罗维阳 杨建林 于燕 FAN Hong1 , LUO Wei-yang1 , YANG Jian-lin2 , YU Yan3(1. School of Electric Power Engineering, Shanghai University of Electric Power, Shanghai 200090, China; 2. State Grid Shanghai Electric Power Economic and Technology Research Institute, Shanghai 200120, China; 3. State Grid Liuan Power Supply Company, Liuan 237005, Chin)

机构地区：[1]上海电力学院电气工程学院,上海200090 [2]国网上海市电力公司经济技术研究院,上海200120 [3]国网六安供电公司,安徽六安237005

出　　处：《水电能源科学》2018年第9期184-187,共4页Water Resources and Power

基　　金：国家自然科学基金项目(51307104)

摘　　要：为分析城市220kV电网在故障状态下的分区方式,以故障情况下城市220kV电网的切负荷最小为目标建立数学模型。首先总结出分区间联络通道运行方式的基本要求,并将联络通道运行方式的要求用数学模型表示;然后改进传统冗余法分析各联络通道的运行方式。为提高计算效率,以每条联络通道为单位,利用改进遗传算法对求得的各联络通道所有运行方式进行自由组合,计算故障情况下220kV电网分区的最小切负荷量。最后,利用实际电网数据验证了所提方法的有效性。研究成果可为城市互联电网在故障状态下的分区提供参考。In order to analyze the zoning method of the 220 kV power grid in the fault state, the mathematical model was established with the objective of minimizing the load shedding of the 220 kV power grid under fault conditions. First, the basic requirements for the operation mode of the inter-zonal communication channel were summed up, and the requirements for the operation mode of the communication channel were expressed in a mathematical model. Then, the traditional redundancy method was improved, and the operation mode of each communication channel was analyzed. In order to improve the computational efficiency, each contact channel was used as a unit, and all the operating modes of the obtained contact channels were freely combined using the improved genetic algorithm to calculate the minimum load shedding of the 220 kV grid subzone under fault conditions. Finally, the actual grid data was adopted to verify the validity of the proposed method. The research results can provide reference for the partition of the city＇s interconnected power grid under fault conditions.

关 键 词：电网分区 分区供电容量 分区模式 改进冗余法 改进遗传算法 

分 类 号：TM744[电气工程—电力系统及自动化]