含多种分布式电源的微电网经济调度

Micro-grid economic dispatching of containing multiple distributed generations

针对含多种分布式电源的微电网经济调度问题,以微电网各机组的出力和蓄电池、电动汽车的电量为约束条件,考虑微电网中设备的投资费用、运行维护费用、燃料消耗费用和能量交易费用,以微电网在一个完整的调度周期的总运行费用最小为目标函数,建立微电网经济调度模型,采用粒子群优化算法对燃气轮机的每小时输出功率进行优化。仿真结果表明:该模型能有效降低微电网的运行成本,其粒子群优化算法与其他算法相比具有简单、易实现、精度高等优点。

Aiming at the problem of micro-grid economic dispatching containing multiple distributed generations,considers the investment costs,maintenance and operation costs,fuel costs and energy trade costs of equipments in micro-grid,takes the total operation cost minimum as the objective function in a complete dispatching circle of the micro-grid,builds micro-grid economic dispatching model,adopts particle swarm optimization algorithm to optimize the output per hour of the gas turbine.The simulation result shows that the model can effectively reduce the operation cost of the micro-grid.the particle swarm optimization algorithm comparing with other algorithms has the advantages of simple,easy to realize and high precision.