考虑微网发电成本的经济性，以微型燃气轮机发电成本、 储能运行维护成本和微网与主网之间买、卖电的交互成本为系统总成本，以电力平衡及机组运行的相关约束为模型的约束条件，建立使系统的总成本最低为目标函数的日前经济优化调度模型。 日前经济优化调度一般以 24 小时为调度周期，电网的调度中心根据次日调度周期内的负荷以及可再生能源出力预测数据，提前安排次日每个小时内发电机机组或储能设备等的出力情况以及要从上层电网购买或售出的电量，以达到发电成本最小或收益最大的目的。(Considering the economy of micro-grid generation cost, a day-ahead economic optimal dispatching model with minimal total cost as objective function is established, taking the cost of micro-turbine generation, the cost of energy storage operation and maintenance and the cost of interaction between micro-grid and main network as the total cost of the system, and the constraints of power balance and unit operation as the constraints of the model. Today's optimal dispatching usually takes 24 hours as the dispatching cycle. According to the load and renewable energy output forecast data in the next day's dispatching cycle, the dispatching center of the power grid arranges in advance the output situation of generator units or energy storage equipment in the next day and the amount of electricity to be purchased or sold from the upper power grid in order to achieve the purpose of minimizing the cost of generating electricity or maximizing the revenue.)