100MW/400MWh Grid-Forming Energy Storage Project Proposal

This document presents a comprehensive proposal for a 100MW/400MWh grid-forming energy storage project. It begins by outlining the background and necessity of grid-forming solutions, emphasizing challenges from increased renewable energy penetration and the need for enhanced grid stability. The proposal details the role of grid-forming energy storage in providing system inertia, short-circuit capacity, active disturbance suppression, and improved renewable energy acceptance. It references key standards such as T/CNESA 1008-2023 and T/CES 243-2023. The overall system design includes design basis, system layout, and recommended configurations. A significant portion focuses on grid-forming power conversion systems (PCS), comparing them with grid-following PCS and detailing control strategies and verification methods. The integrated energy storage step-up unit is introduced with product features, equipment configuration, technical parameters, and functions. The proposal aims to demonstrate how grid-forming energy storage can enhance grid strength, stability, and resilience, supporting the transition to a high-renewable energy grid.