Grid-Connection Commissioning for 110kV+ Renewable Stations
This document provides a comprehensive breakdown of the grid-connection commissioning process for renewable energy stations with voltages of 110kV and above. It covers general provisions, organizational structure, hard prerequisites, and a phased approach including preliminary preparation, subsystem commissioning, grid-related special tests, whole station joint commissioning, synchronization and trial operation, and completion acceptance. Special attention is given to wind-solar-storage integrated systems, with detailed procedures for energy storage commissioning and coordinated tests. The document also outlines standardized dispatching business timelines, risk prevention, safety red lines, and quality acceptance standards. Each phase includes specific verification mechanisms, such as the 'Five Confirmations' before full station energization and four-level closed-loop acceptance. The goal is to ensure safe, reliable, and efficient grid integration, meeting grid mandatory assessment standards and facilitating smooth transition to commercial operation.