输配协同下的输配能量市场双层出清模式

Two Layer Market Clearing Model of Electric Energy Transaction ConsideringDistribution And Transmission System Coordination

在传统输配网分离决策的电能市场出清模式中,会出现节点电价过高和风电资源消纳能力不足等问题,为协调输配电网资源与信息不均衡问题,分析输配协同决策下的电力市场特点,构建了输配协同下输电运营商(Transmission System Operator, TSO)与配电运营商(Distribution System Operator, DSO)电能市场双层出清模式,下层DSO决策利用KKT条件将其转化为均衡约束,经二阶锥的对偶规划与下层KKT的线性化处理,其转化为带均衡约束的数学规划(Mathematical Program with Equilibrium Constraints, MPEC)单层决策模型。实验结果表明,该模型成功调动输配侧资源,降低了市场出清价格,提高了系统经济性,为电力系统运行和市场协调带来积极影响。

In the power market clearing mode of traditional transmission and distribution network separation decision,there are some problems,such as high node electricity price and insufficient consumption capacity of wind power resources.in order to coordinate the imbalance between transmission and distribution network resources and information,the characteristics of power market under transmission and distribution cooperative decision-making are analyzed,and the double-layer clearing mode of Transmission system operator(TSO)and Distribution system operator(DSO)power market is constructed.The lower-level DSO decision is transformed into an equilibrium constraint by using the KKT(Karush-Kuhn-Tucker)condition,and through the dual programming of the second-order cone and the linearization of the lower-level KKT,it is transformed into a single-layer decision model with Mathematical program with equilibrium constraints(MPEC).The experimental results show that the model successfully mobilizes the resources of the transmission and distribution side,reduces the market clearing price,improves the economy of the system,and has a positive impact on the operation of the power system and market coordination.