考虑光伏接入的低压配电网损耗优化  

Loss Optimization Considering Photovoltaic Access to Low-voltage Distribution Network

作　　者：于飞[1] 张迪 YU Fei;ZHANG Di(College of Automation and Electronic Engineering,Qingdao University of Science and Technology,Qingdao 266061,China)

机构地区：[1]青岛科技大学自动化与电子工程学院,青岛266061

出　　处：《电力系统及其自动化学报》2020年第11期132-136,共5页Proceedings of the CSU-EPSA

基　　金：国家自然科学基金资助项目(51974151,71771111);辽宁省重点实验室基金资助项目(LJZ003)。

摘　　要：日益增加的户用光伏发电系统改变了配电网的潮流分布,同时对配电网的网络损耗产生了影响。利用光伏发电系统固有无功出力的可控性,实现对接入配电网的损耗优化。首先给出配电网网损的计算模型,然后在OpenDSS仿真软件中搭建光伏发电系统接入的配电网仿真模型,通过使用Matlab调用OpenDSS并利用粒子群算法实现了配电网的损耗优化。仿真结果表明,分布式光伏发电系统能有效减少配电网的损耗,同时也能有效抑制电压越限现象。The increasing household photovoltaic(PV)power generation systems have changed the power flow distribu⁃tion of distribution network,which also have impacts on the distribution network loss.In this paper,the inherent con⁃trollability of reactive power output from the PV power generation system is utilized to realize the loss optimization of connected distribution network.First,a calculation model of distribution network loss is presented.Then,a simulation model of distribution network connected to the PV power generation system is built in the simulation software OpenDSS.Afterwards,the loss optimization of distribution network is realized by calling OpenDSS with Matlab and using the parti⁃cle swarm optimization(PSO)algorithm.Simulation results show that the distributed PV power generation system can effectively reduce the distribution network loss while suppressing the phenomenon of voltage over-limit.

关 键 词：光伏 OpenDSS 配电网损耗 粒子群优化算法 电压越限 

分 类 号：TM761[电气工程—电力系统及自动化]