Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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微电网联网的购售电优化策略

来源:电工电气发布时间:2016-09-20 13:20 浏览次数:8
微电网联网的购售电优化策略
 
徐小明1,吴振鹏2
(1 贵州大学 电气工程学院,贵州 贵阳 550025;2 国网衢州供电公司,浙江 衢州 324000)
 
    摘 要:介绍了微电网并网的运营策略,提出了微电网并网运行模式下的经济运行优化模型。模型中考虑了微电网的运行成本、环境成本、停电补偿成本以及与大电网之间的功率交换。通过粒子群算法,以典型日负荷曲线为例,得到了微电网并网运行时的各机组出力、微电网的售电收益、微电网的运行成本、峰值时的停电补偿费用以及和大电网之间的交换功率。仿真结果表明,微电网代理商可以根据自身的情况,灵活调节各机组出力以及通过与大电网之间的功率交换来获取最大的利益。
    关键词:微电网;并网;购售电;优化策略
    中图分类号:TM727   文献标识码:A   文章编号:1007-3175(2016)09-0023-03
 
Optimal Strategy of Purchase and Sale of Micro
Grid Connected Operation
 
XU Xiao-ming1, WU Zhen-peng2
(1 Department of Electrical Engineering, Guizhou University, Guiyang 550025, China;
2 State Grid Quzhou Power Supply Company, Quzhou 324000, China)
 
    Abstract: Introduction was made to the operation strategy of micro grid connected. This paper proposed the optimization model of economic operation in micro grid connected operation mode. The design of the model considered the micro grid operation cost, environmental cost, outage cost compensation and the power exchange with the large power grid. Using the particle swarm algorithm and taking the typical daily load curve for example, this paper obtained the output of each unit, the earnings of micro grid electricity sale, the operation cost of micro grid, the cost of the peak power outage compensation and the power exchange with the large power grid.The simulation results show that the micro grid agents,
according to their own situation, can flexibly adjust each unit output and obtain the maximum benefit through the power exchange with the large power grid.
    Key words: micro grid; grid connected operation; purchase and sale of electricity; optimization strategy
 
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