摘要
微电网是一类能将分布式电源很好地接入大电网的系统,它能实现能源的高效率利用。本文分别以经济效益、环境效益、综合效益为目标,研究微电网在脱离大电网系统情况下的分布式电源出力优化问题,并分析储能系统接入对微电网运行经济性产生的影响。通过引入线性递减惯性权重和异步学习因子改进传统粒子群算法,搭建水、光、柴、储微电网模型并进行解算,分析微电网在储能接入前后,不同经济目标下各分布式电源的出力变化,最后以福建某水电站典型日负荷为研究数据,验证了模型及算法的合理性和有效性。
Microgrid is a kind of system that can connect distributed generation to large power grid,which realizes the efficient utilization of energy.Aiming at economic benefit,environmental benefit and comprehensive benefit,the output optimization of distributed generation in the case of microgrid separated from large grid system is studied.Impact of energy storage system access on microgrid operation is analyzed.By introducing linear decreasing inertia weight and asynchronous learning factor,the traditional particle swarm optimization(PSO)algorithm is improved,and the water,light,diesel and storage microgrid model is built for calculation.The output changes of distributed generators under different economic objectives before and after connection of energy storage to the microgrid are analyzed.The typical daily load of a hydropower station in Fujian is taken as the research data,and the rationality and effectiveness of the model and algorithm are verified.
作者
卢恒光
范欣辰
LU Hengguang;FAN Xinchen(Fujian Huadian Wan’an Energy Co.,Ltd,Longyan,Fujian 361000;College of Electrical Engineering and Automation,Fuzhou University,Fuzhou 350000)
出处
《电气技术》
2022年第11期56-61,共6页
Electrical Engineering
关键词
微电网
电力优化
储能
粒子群算法(PSO)
microgrid
power optimization
energy storage
particle swarm optimization(PSO)
