计及蓄电池使用寿命的微电网经济调度模型

Economic dispatch model considering battery lifetime for microgrid

由于新能源发电和负荷有不确定性,为保证微电网的安全可靠运行,蓄电池作为储能装置发挥了重要作用。为充分利用蓄电池,提高微电网的经济性,建立考虑蓄电池使用寿命的微电网经济调度模型,并应用混合整数线性规划算法进行求解。以一个包含风、光、储、微型燃气轮机、柴油发电机和燃料电池的微电网为算例,对微电网并网运行方式进行经济调度优化,计算结果验证了所提模型的有效性。

Because of the uncertainty of renewable energy generation and load,the battery is applied as the energy storage device to ensure the safe and reliable operation of microgrid. An economic dispatch model considering the lifetime of battery is built to take its full advantage for improving the economy of microgrid and the mixed integer linear programming algorithm is adopted to solve the model. As an example,the economic dispatch optimization is carried out for a grid-connected microgrid with wind turbine,photovoltaic cell,battery,micro gas turbine,diesel engine and fuel cell to verify the effectiveness of the proposed model.