计及分布式电源与电容器协调的配电网日前无功计划

发布时间：2018-01-17 22:29

本文关键词：计及分布式电源与电容器协调的配电网日前无功计划　出处：《电网技术》2014年09期 　论文类型：期刊论文

【摘要】：针对目前含分布式电源(distributed generation,DG)的配电网中未考虑电容器补偿容量和DG无功出力协调调度的问题,研究了考虑DG与电容器组协调的无功优化方法。以网损和电压偏移满意度最高为目标,构建含DG的配电网日前动态无功优化调度模型。根据DG无功出力和电容器补偿的特点,提出DG和电容器协调的日前无功计划方法。分析了各类DG的无功出力极限并作为约束条件,对电容器和DG进行整体静态优化得到电容器的投切容量曲线;其次采用模糊聚类对电容器投切曲线进行时序分段并融合,制定电容器的日前计划;最后,在电容器补偿容量确定后,以DG作为优化变量,制定DG出力的日前计划。仿真结果验证了所提方法的有效性。
[Abstract]:In order to solve the problem that capacitor compensation capacity and DG reactive power dispatch are not considered in the distribution network with distributed generation (DG) at present. The reactive power optimization method considering the coordination of DG and capacitor banks is studied. The highest satisfaction degree of network loss and voltage offset is taken as the goal. Based on the characteristics of DG reactive power output and capacitor compensation, the pre-day dynamic reactive power optimal dispatching model of distribution network with DG is constructed. A pre-day reactive power planning method coordinated by DG and capacitor is proposed. The reactive power limit of all kinds of DG is analyzed and used as a constraint condition. The switching capacity curve of capacitor is obtained by static optimization of capacitor and DG. Secondly, the capacitor switching curve is segmented and fused by fuzzy clustering, and the pre-day plan of capacitor is worked out. Finally, after the capacitors compensation capacity is determined and DG is taken as the optimization variable, the pre-day plan of DG output is worked out. The simulation results verify the effectiveness of the proposed method.
【作者单位】：中国农业大学信息与电气工程学院;国家电网济南供电公司;
【基金】：国家自然科学基金(51377162) 国家电网公司科技项目(PD71-13-031)~~
【分类号】：TM714.3
【正文快照】： 0引言分布式电源(distributed generation,DG)具有投资省、发电方式灵活、与环境兼容等特点,可作为集中供电的有效补充[1-3]。光伏发电、燃料电池等通过逆变器并入电网的DG,以及微型燃气轮机、生物质能发电系统等以励磁电压可调型同步发电机形式直接并入电网的DG,均具有一定的

【相似文献】