计及多利益主体的配电侧动态定价与市场出清策略

随着电力市场建设的不断完善,由多个虚拟电厂介入的配电侧市场运营机制日趋复杂。研究了计及多利益主体的配电侧市场交易策略,进而构建了一种用于动态定价和市场出清的双层优化模型。上层以最小化配电系统运营商成本为目标,计及潮流和运行安全约束;下层以最大化虚拟电厂收益为目标,求解经济调度模型。在此基础上,利用线性化技术和互补原理将下层问题转化为均衡约束,进而基于强对偶理论将原始非线性双层优化模型转化为单层的混合整数线性规划模型进行求解。算例仿真验证了本文所建立模型的有效性。

Dynamic Pricing and Market Clearing Strategy for Power Distribution Considering Multiple Stakeholders

With the continuous improvement of the power market,the operation mechanism of power distribution market including multiple virtual power plants becomes increasingly complex.This paper constructs a bi-level optimization model for market clearing strategy and dynamic pricing design for distribution power market with multiple stakeholders.The upper level minimizes the cost of distribution system operators considering the power flow and operational security constraints.The lower level maximizes the revenue of the virtual power plant for economic scheduling.On this basis,the linearization techniques and the complementarity principles are adopted to transform the lower level problem into equilibrium constraints.Then,the original nonlinear bilevel optimization model is transformed into a single-level mixed integer linear programming model using strong dual theory.Case study verifies the effectiveness of the proposed model.