山东电力高等专科学校学报

为了保障微电网运行的经济性并减少对环境的影响，提出了一种基于狮群优化算法（lion swarm optimization,LSO）的微电网优化调度方法。将燃料支出成本、设备维护成本、电网交互成本和环境惩罚成本组成微电网总运营成本，以总运营成本最小作为目标函数，考虑微电网实际运行约束，构建了微电网优化调度模型。采用LSO算法对所建模型进行求解，算例分析结果表明，该算法收敛精度高，稳定性好。通过优化调度，系统负荷得到了满足，风光等可再生能源得到了充分利用，既实现了微电网的经济运行，也减少了污染气体的排放。

To ensure the economic operation of microgrids and reduce environmental impact,a microgrid optimal dispatching method based on the lion swarm optimization(LSO)algorithm is proposed.The total operational cost of the microgrid—comprising fuel expenditure,equipment maintenance,grid interaction and environmental penalty cost—is taken as the objective function to be minimized.An optimal dispatching model for the microgrid is constructed by considering its actual operational constraints.The LSO algorithm is utilized to solve the proposed model.It is demonstrated that high convergence accuracy and good stability are exhibited by this algorithm.Through optimal dispatching,the system load demand is satisfied,renewable energy sources such as wind and photovoltaic power are fully utilized,and both economical operation of the microgrid and reduction in pollutant gas emissions are achieved.