计及源荷储综合灵活性的电力系统日前优化调度

充分利用灵活性资源的调节作用能够有效平抑风电的随机波动，提高风电接纳能力。提出一种计及源荷储综合灵活性的电力系统日前优化调度方法。分析了电力系统灵活性需求及源荷储灵活性供给特性，综合考虑系统运行灵活性概率平衡特性；基于条件风险价值(CVaR)度量灵活性不足给电力系统带来的风险损失，将CVaR融入目标函数以优化分配有限的灵活性资源；构建了计及灵活性的随机优化调度模型。以IEEE 39节点系统和实际区域电网为算例验证了所提方法和模型的可行性、有效性。

Day-ahead optimal scheduling of power system considering comprehensive flexibility of source-load-storage

Making full use of the regulating effect of flexibility resources can effectively smooth the random fluctuation of wind power and improve the wind power acceptance capacity. A day-ahead optimal schedu-ling of power system considering comprehensive flexibility of source-load-storage is proposed. The flexibility demand characteristic of power system and the flexibility supply characteristic of source-load-storage are ana-lyzed, and the probabilistic balance characteristic of system operation flexibility is considered comprehensively. CVaR(Conditional Value-at-Risk) is used to measure the risk loss of power system caused by insufficient flexibility, and is integrated into objective function to optimize the allocation of limited flexibility resources. A stochastic optimal scheduling model considering flexibility is constructed. The feasibility and validity of the proposed method and model are verified by the examples of IEEE 39-bus system and actual regional power grid.