论文标题
市场机制,可以在径向分配网络中启用电网派遣聚合器
Market mechanism to enable grid-aware dispatch of Aggregators in radial distribution networks
论文作者
论文摘要
本文提出了一个基于市场的优化框架,其中聚合器可以在分配馈线上争夺淋巴结能力,并确保分配的柔性容量不会导致过载或交通拥堵。因此,这种机制允许具有分配能力的聚合器在整个销售市场层面追求多种服务,以最大程度地利用灵活资源的收入。基于能力(MW)和网络访问价格($/MW)的集合竞标,分配系统运营商(DSO)制定了优化问题,将其优先于整个网络的不同聚合器的容量确定,同时隐含地考虑AC网络约束。通过将凸内部近似结合到优化框架中,将凸内部近似值纳入优先级的托管能力来获得与不同聚合器的优化框架,从而获得了这种网格感知分配。我们通过将节点电压和变压器约束结合到优化框架中,从传输级别的容量市场清算,公用事业需求费用和类似互联网的带宽分配规则调整为分配系统操作。基于IEEE分销网络的基于仿真的结果展示了该方法的有效性。
This paper presents a market-based optimization framework wherein Aggregators can compete for nodal capacity across a distribution feeder and guarantee that allocated flexible capacity cannot cause overloads or congestion. This mechanism, thus, allows Aggregators with allocated capacity to pursue a number of services at the whole-sale market level to maximize revenue of flexible resources. Based on Aggregator bids of capacity (MW) and network access price ($/MW), the distribution system operator (DSO) formulates an optimization problem that prioritizes capacity to the different Aggregators across the network while implicitly considering AC network constraints. This grid-aware allocation is obtained by incorporating a convex inner approximation into the optimization framework that prioritizes hosting capacity to different Aggregators. We adapt concepts from transmission-level capacity market clearing, utility demand charges, and Internet-like bandwidth allocation rules to distribution system operations by incorporating nodal voltage and transformer constraints into the optimization framework. Simulation based results on IEEE distribution networks showcase the effectiveness of the approach.