柔性网架结构下考虑双边交易的多微网与配网协同规划

高比例风光接入下，多微网与配网间的双边交易对配电网的调控能力提出了更高要求。考虑柔性配电装置快速灵活调节网络潮流的优点，提出一种柔性网架结构下考虑多微网与配网双边交易的协同规划方法。首先，在考虑智能软开关规划的基础上构建协同规划的广义纳什议价模型。其次，采用交替优化策略将议价模型转化为易于求解的双层迭代过程，上层各主体各自优化规划方案，下层完成双边交易的结算问题。然后，将下层问题等效转化为电量结算和费用结算两个子问题，并分别采用交替方向乘子法求解。最后，在IEEE33节点配电系统中的算例表明所提规划方法可有效缩减社会总成本和各主体年综合费用。

Collaborative planning of multiple microgrids and a distribution network consideringbilateral transactions in a flexible network structure

With the high penetration of wind power and photovoltaic power generation, bilateral transactions between multiple microgrid operators (MGO) and the distribution system operator (DSO) lead to higher challenges to the distribution network. Considering the advantages of flexible distribution devices for fast and flexible regulation of power flow, this paper proposes a collaborative planning method that considers bilateral transactions between multiple MGOs and the DSO in a flexible network structure. First, a generalized Nash bargaining model for collaborative planning is constructed on the basis of the soft open point (SOP) planning. Then, the alternating optimization procedure (AOP) is used to transform the nonconvex and discontinuous problem into a bi-level iterative negotiation process. Each investor individually optimizes the planning scheme in the upper level, and achieves bilateral transaction in the lower level. Next, the lower-level problem is further equivalently transformed into two subproblems of power clearing and cost settlement, and then they are solved by alternating direction multiplier method respectively. Finally, the IEEE33-bus calculation analysis shows that the proposed planning scheme can effectively reduce the total social cost and the overall annual cost of each investor.