计及价格引导机制的含分布式资源园区协调运行策略

Coordinated Operation Strategy of Multiple Parks Considering Distributed Energy Resources and Price-based Incentive Mechanism

市场环境下,含分布式资源的园区正参与到配电网的协调运行过程中。如何保证配电网安全运行及调动其积极性,实现多园区与配电网的利益均衡,是当前亟需解决的关键问题。针对此问题,引入配电网节点边际电价对多园区的协调运行进行价格传导。首先,配电网公司进行多园区的协调运行,基于配电网节点边际电价对各园区内部的需求响应过程进行趋优引导。然后,采用多代理模型对园区内的分布式资源进行代理,利用传导的配电网激励价格计算各代理的交互利益,园区根据各分布式资源代理的交互利益优先级进行协调优化。最后,通过算例仿真结果证明所提方法的有效性,通过对传统优化方法与基于交互利益优先级的园区协调响应策略开展对比实验,结果证明了提出的交互利益优先级理论可以更加快速地寻找到多代理的最优需求响应组合,配电网节点边际电价可以更好地引导多园区实现对配电网的有效支撑。

Consisting of distributed energy resources(DERs), parks with self-generated capacity are participating in the process of market-oriented distribution network coordinated operation. How to achieve the equilibrium between distribution network operator(DNO) and multiple parks under the assurance of safe operation and enthusiasm incentive is an important issue. To solve this problem, this paper introduces the distribution locational marginal price(DLMP) to achieve the optimal guidance of multiple parks on the basis of the price-based incentive mechanism. First, DNO is responsible for the coordinated operation of multiple parks, the DLMP is calculated and used to incentive the demand response process of multiple parks. Then, the multi-agent model of DERs in multiple parks is established, and an interactive benefits priority(IBP) principle is proposed to find the optimal coordinated operation strategy of DERs in each park according to the incentive price from DNO. Finally, the effectiveness of proposed method is illustrated by simulation results. Comparative experiments are carried out between the traditional strategy and the proposed strategy. Experiments show that the proposed strategy can find the optimal combination of DERs more quickly, and DLMP can better guide the coordinated operation of multiple parks in the distribution networks.