摘要
220kV电网分区运行已成为限制220kV电网短路电流的重要措施。针对目前凭经验或采用启发式方法进行220kV电网分区存在的局限性,建立了220kV电网分区优化模型。模型以各220kV电网分区的主变压器负载率均匀为目标函数,以500kV变电站200kV母线短路电流限值、供电可靠性、网损和其他网络约束为约束条件,应用Tabu搜索算法进行分区优化求解。某省电网2008年夏季高峰负荷数据的220kV电网分区优化结果表明了所提出的优化模型的有效性。
The voltage-grading and district-dividing operation in current. A 220 kV power grid optimization model is firstly power systems has become an important measure to limit fault established to overcome shortcomings of district-dividing by experience or heuristic methods in the paper. The obiect function for optimal model is maximizing uniform load-rate of the main transformer in each 220 kV zone. The constraint condition includes network loss, supply reliability, fault current limit on 220 kV bus bar and other network constraints . Tabu search algorithm is applied to solve the optimization problem. Finally the method is simulated with a practical example of Jiangsu power grid in 2008 summer peak load data. The simulation result shows the above method is validated.
出处
《电力系统自动化》
EI
CSCD
北大核心
2009年第22期98-101,共4页
Automation of Electric Power Systems
