Optimization Control Strategy for Green Power With CESS in Distributed PV Distribution Network Considering Demand Response

To address the source‐load mismatch and photovoltaic (PV) curtailment caused by the large‐scale integration of distributed PV into distribution networks, this paper proposes an optimal control strategy for PV accommodation considering the coordination of a centralized energy storage system (CESS) and demand response. To achieve coordinated regulation on both the supply and demand sides, a multiobjective optimization model is established. It minimizes the comprehensive operating cost, including electricity purchasing, PV curtailment, CESS operation and maintenance, and the peak‐to‐valley load difference. On this basis, a time‐of‐use pricing mechanism is introduced to establish a piecewise linear load transfer rate model, which quantifies users’ dynamic electricity consumption behavior and optimizes the allocation of peak and valley loads. The proposed model is solved using particle swarm optimization (PSO). Case study results show that, compared with the scenario considering only CESS, the coordinated strategy reduces PV curtailment by 12.34%, electricity purchasing by 10.0%, and the total operating cost by 8.37%, demonstrating good performance in improving PV accommodation and the economic efficiency of the distribution network.