含冷热电联供系统微电网优化运行研究

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。

Research on Economical Operation of Micro-grid with CCHP

The CCHP micro-grid has advantages of high efficiency pollution,low power consumption,it has broad application prospects.In order to make the CCHP micro-grid system can be a reliable,safe,economical operaion,The first consideration to make full use of new energy sources,secondly to combine the use of restraint and storage factors.In this paper,a mathematical model on the economical operation of the micro-grid system with CCHPs in grid-connected operation are established.The given cost function takes into account the operation and maintenance costs,fuel consumption cost of the distributed generators and the power purchase or sale fees.Finally,an example analysis with improved particle swarm optimization is made based on the data of a neighborhood,and the validity and practicability of the method is fully demonstrated.