A comprehensive control method and system for a direct current (DC) power grid of a pure battery of a ship are provided. Four modular battery packs are configured to connect to corresponding busbars, and four propulsion inverters, an axle-hung propulsion motor, two domestic inverters, one equilibrium converter, and a comprehensive control system with a multi-strategy algorithm are configured. This scheme can flexibly schedule usage of a propulsion load and a domestic load, effectively balance states of charge (SOCs) of the battery packs, flexibly schedule charging, swapping, and usage of a containerized power supply, achieve high redundancy of a propulsion system, and effectively solve a problem of an electricity quantity balance between the battery packs. A function of an emergency rudder is implemented, which solves a problem that a steering gear cannot be used in the event of an alternating current (AC) power loss of a pure battery-powered ship.


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    Title :

    Comprehensive Control Method and System for Direct Current (DC) Power Grid of Pure Battery of Ship


    Contributors:
    HU BIN (author) / ZENG ZHILIN (author) / WANG SHAOYUAN (author) / LIU ZHONGLING (author) / LI JIAN (author)

    Publication date :

    2025-07-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen




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