基于成本最优柔性分解的可行运营区域货币化
Monetarization of the Feasible Operation Region based on a Cost-Optimal Flexibility Disaggregation
摘要：
分层多（电压）级电网控制策略是一个适当的设计概念，为未来的TSO/DSO和DSO/DSO的相互作用的协调。分层方法是基于分散的辅助服务潜力的聚合，由转换器耦合的，可通信的有功和无功功率灵活性提供单元（FPU）（例如风力涡轮机）在垂直系统接口。由此产生的PQ多边形提供的DSO的辅助服务的灵活性的TSO的潜在请求被称为可行的操作区域（FOR）。为了在更高级别的电网控制中实现操作自由度，有必要将FOR货币化。本文提出了一种方法，货币化的FOR在一个层次的多层次的灵活性市场的背景下，通过使用元数据的人口为基础的优化方法的成本结构。多个FPU灵活性多边形在一个单一的总线聚合的搜索空间维度的减少。所提出的方法的主要贡献是成本最优分解的灵活性需求的单一FPU内聚合FPU的混合整数线性规划（MILP）。因此，一个本地的灵活性市场考虑FPU利益相关者的有功和无功功率灵活性的投标假设。该方法是应用在一个案例研究的Mréré中压系统。
英文摘要：
Hierarchical multi-(voltage-)level grid control strategies are an appropriate design concept for the coordination of future TSO/DSO- and DSO/DSO-interactions. Hierarchical approaches are based on the aggregation of decentralized ancillary service potentials, represented by converter-coupled, communicable active and reactive power flexibility providing units (FPU) (e.g. wind turbines) at vertical system interfaces. The resulting PQ-polygon made available by the DSO for a potential request of ancillary service flexibilities by the TSO is called feasible operation region (FOR). A monetarization of the FOR is necessary for the implementation as operational degree of freedom within higher-level grid control. This paper presents an approach for the monetarization of the FOR in the context of a hierarchical multi-level flexibility market by a cost structure using metadata from population based optimization methods. Multiple FPU flexibility polygons at a single bus are aggregated for a reduction of the search space dimensions. The main contribution of the proposed method is the cost-optimal disaggregation of a flexibility demand to the single FPUs within the aggregated FPU by a mixed integer linear program (MILP). Therefore, a local flexibility market considering bids for the active and reactive power flexibilities by the FPUs stakeholders is assumed. The approach is applied within a case-study of the Cigré medium voltage system.
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