地震区域的电力自动调度应急模型设计

Emergency Model Design for Automatic Dispatching of Electric Power in Seismic Areas

摘要:

传统电力实施平衡调度模型进行电力自动应急调度时，未考虑输电裕度和应急物资的分配问题，实施电力应急调度成本高、效率低，造成地震区域的经济财产损失增加，因此，设计地震区域的电力自动调度应急双层模型，采用上层模型—增强电网输送能力的自动应急调度模型，依据多断面静态安全协调模式的输电裕度和灵敏度与电力实时调度决策获取不同发电机调节量，对不同发电机调节量通过多断面综合协调模式实施多目标优化，获取发电机使用的最优解，增强电网输送能力；通过下层模型—电力应急资源调度模型，采用电力应急资源调度最小成本目标函数，依据各电力资源存储中心配送到故障现场的资源量小于存储量的原则，塑造电力应急资源数量约束条件，实现电力应急资源的调度成本最小化。实验结果表明，所设计模型使电力系统获得较高的输电裕度，提高了电力自动调度应急的综合能力。

Abstract:

The traditional model for real-time power balance scheduling does not consider the distribution of transmission margin and emergency supplies during the automatic dispatching of power. Emergency power dispatch incurs high cost and has low efficiency. This results in an increase in the economic loss in the earthquake-stricken area. In this study, a two-layer emergency model for automatic electric power dispatching in seismic areas is designed. The upper level model (the automatic emergency dispatching model) can realize different regulation quantities of the generator according to the transmission margin sensitivity of the multisection static security coordination mode and the real-time power scheduling decision. Thus, the model enhances the transmission capacity of the power grid. Through the lower level model (the power emergency resource dispatching model), by using the minimum cost objective function for emergency electric power dispatching, the quantity constraint conditions of emergency electric power are created, and the scheduling cost of emergency power is minimized. The experimental results verify that the designed model helps the power system realize a higher transmission margin, reduces prevention and correction operations, and enhances the benefits of the automatic emergency dispatch of electric power.