Liquid-Cooled Battery Compartment Design for 100MW/400MWh ESS

This document presents a comprehensive design plan for a containerized energy storage system (ESS) with a capacity of 100MW/400MWh, utilizing liquid-cooled battery compartments. The system is designed for inland areas below 3000m altitude, featuring individual container storage with integrated temperature control, liquid cooling units, and fire protection systems. It employs lithium iron phosphate (LFP) batteries of 280Ah for maximized energy density, with redundant design for electrical components and key equipment. The battery prefabricated cabins have double-side door openings for safety and maintenance ease. The DC side consists of liquid-cooled containers, each comprising clusters of batteries in parallel, achieving a total DC capacity of 3.35MWh per container. The design adheres to grid connection requirements and references numerous standards including DL/T, GB/T, and IEC for safety, performance, and environmental resilience. Key subsystems include DC combiner cabinets, internal power supply, fire protection, temperature control, and video security monitoring. The document also covers transportation, maintenance, and after-sales service, ensuring reliable operation and compliance with distribution network integration specifications.