微网孤网经济运行研究

Research on Economical Operation of Island Microgrid

建立了含冷热电联产系统的微网经济性数学模型,并将环保因素考虑在内,采用改进的遗传算法对微网孤网的经济调度进行了仿真计算。结合含多种微源的微网案例,给出了微网孤网运行时的具体调度方案,研究结果表明,该模型可有效应用于微网孤网的经济运行特性研究,同时结果显示蓄电池组的优化调度可减少系统的综合运行成本。

In this paper, an optimization model of the economical operation of the microgrid system containing CCHP is established. With the requirements for environment protection considered, the advanced GE Algorithm is used for simulation and calculation of the model of the island mierogrid. Based on an analysis of a specific mierogrid case containing many types of microsources, a concrete economical operation plan is given for the microgrid operated as an island. The results prove that the model and GE Algorithm are correct and effective for analyzing the economical operation characteristics of the island microgrid, and the resuhs also suggest that the optimized scheduling of the storage batteries can reduce the overall operation cost of the mierogrid system.