考虑DG无功补偿成本的电网无功优化研究  

Reactive Power Optimization in Power Grid Considering the Reactive Power Compensation Cost of DG

作　　者：陈奇芳 马世英[2] 王丹[1] 陈勇[2] 宋墩文[2] 张建华[1] 

机构地区：[1]华北电力大学电气工程学院,北京102206 [2]中国电力科学研究院,北京100085

出　　处：《电器与能效管理技术》2016年第12期8-15,共8页Electrical & Energy Management Technology

基　　金：国家电网公司总部科技项目(XT71-13-039)

摘　　要：分析了不同分布式电源(DG)的无功服务成本函数,在此基础上,计及节点电压约束、DG无功出力约束等条件,兼顾经济性与安全性建立了以运行成本最小和电压偏差最小为目标函数的智能电网多目标无功优化模型,并采用经典多目标算法——非支配排序遗传算法(NSGA-II)算法进行求解。仿真算例表明,在优化模型中考虑无功辅助服务成本可以有效降低网损和电网电压偏差,提高电网电压水平。This paper analyzed the reactive power cost function of different DGs. On this basis, a muhi- objective reactive power optimization model was constructed with the objective function of cost and voltage deviation minimization and the constraints of node voltage and reactive power output range of DG. The classic multi-objective algorithm non-dominated sorting genetic algorithm （NSGA-Ⅱ） algorithm was used to solve the model. Finally, the simulation examples show that considering reactive support service costs in the optimization model can effectively reduce the power losses and voltage deviation of network, as well as improve the voltage level of the power network.

关 键 词：电力市场 无功补偿成本 无功优化 非支配排序遗传算法 

分 类 号：TM614[电气工程—电力系统及自动化]