Mobile Energy Storage System Technical Project Overview

This document details a technical project for a mobile energy storage system designed to rescue broken-down pure electric vehicles. The system is housed in a 20'GP container and can be dispatched via trailer, offering strong mobility. It supports unattended operation with automatic mode switching based on AC limit, AC priority, or DC priority. The configuration includes a 720KW/1.49MWh battery system using high-capacity lithium iron phosphate cells with over 6000 cycles and 10-year calendar life. Key components include battery clusters, high voltage boxes, thermal management (3KW air conditioners), fire-fighting (perfluorohexanone), BMS with three-level design, energy storage converters (PCS), and 360KW dual-gun charging piles. The system emphasizes safety with fuses, contactors, and multi-level protection, as well as efficient thermal control for optimal battery performance. It is compatible with AC/DC input sources and can function as a fixed charging pile. The modular design reduces energy consumption, costs, and land area while ensuring high energy density, maintainability, and flexibility.