Design Optimization of Large Independent Energy Storage Power Stations

This document discusses the design optimization of large independent energy storage power stations within the context of the new power system. It highlights the critical shift of energy storage from a supporting role to a key strategic asset for grid operation, driven by policy and increasing installed capacity. The document analyzes key performance metrics based on the latest grid connection technical regulations, focusing on active power control, frequency modulation, reactive power support, and inertia support. It identifies common problems such as battery inconsistency, SOC estimation errors, PCS control dead zones, and communication delays that hinder performance. The document also addresses the underutilization of reactive power and inertia capabilities, emphasizing the need for grid-forming technology to enhance stability. Optimization strategies are proposed to improve response speed, accuracy, and stability, ensuring energy storage can effectively participate in system balance and security support. The summary concludes with recommendations for advancing energy storage integration and maximizing its value in modern power grids.