Generation Capacity Adequacy Assessment Considering Multi-resource Coupling

With the continuous evolution of power systems, the uncertainties associated with the source, network, and load sides are increasingly pronounced, amplifying the significance of ensuring power grid adequacy. In response to the imperative to construct capacity adequacy guarantee mechanism, a capacity evaluation methodology integrating multiple resources spanning generation, load, and storage is proposed. By leveraging the distinct characteristics of generation-storage-load resources in supporting the system’s peak load capacity, a multi-resource active output and scheduling model is established. The optimization objective of the scheduling model is to minimize power system load loss, while accounting for the scheduling constraints of flexible resources, including thermal power, hydropower, and renewable energy sources. Case studies on real datasets of a power system demonstrate that the proposed method effectively establishes a scene model. The results of the case studies demonstrate that the proposed model effectively captures the influence of multiple resources on the adequacy of the power system. Furthermore, the evaluation outcomes achieve fairness and equity, providing scientifically grounded generation investment signals to ensure the long-term adequacy of the power system.