含冷热电联供系统微电网优化运行研究

Research on the economical operation of the micro-grid with CCHP

为使冷热电联供(CCHP)型微电网系统能够可靠、安全、经济的运行,首先要考虑对新能源充分的利用,其次要结合储能系统的使用约束以及影响因素。本文建立了冷热电联供型微电网数学模型,综合考虑了各微电源的运行维护费用、燃料费用以及购售电费用等,采用改进粒子群优化算法,针对运行成本最小为目标进行计算仿真。最后以某小区为例,对得出结果进行分析讨论,验证了本文方法的理论性和实用性。

In order to make the CCHP micro-grid system operate reliably,safely and economically,full use of new energy resources is the first consideration,and then the use restraint of the storage system and influencing factors should also be considered. In this paper,a mathematical model of the micro-grid system with CCHP was established,taking into account the operation and maintenance costs of every micro power,fuel consumption cost and the power purchase or sale fees. The improved particle swarm optimization（ PSO） algorithm was adopted,and simulation calculation was made,with the minimum operation cost as the objective. Finally,an example analysis was made based on the data of some neighborhood,and the validity and practicability of the proposed method was fully demonstrated.