Method and device for evaluating adequacy of power system

The invention discloses a power system adequacy assessment method and device, and the method comprises the steps: building an objective function and a corresponding constraint condition according to the total operation cost and load loss risk of a power system in a dispatching period; and according to the objective function and the corresponding constraint condition, calculating to obtain an adequacy evaluation value of the power system. According to the embodiment of the invention, the evaluation precision of the adequacy of the power system is effectively improved. 本发明公开了一种电力系统充裕度评估方法及装置，所述方法包括：根据电力系统在调度周期内的运行总成本以及负荷损失风险，建立目标函数及其相应的约束条件；根据目标函数及其相应的约束条件，计算得到电力系统的充裕度评估值。采用本发明实施例有效提高了对于电力系统充裕度的评估精度。