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.
Comprehensive Control Method and System for Direct Current (DC) Power Grid of Pure Battery of Ship
10.07.2025
Patent
Elektronische Ressource
Englisch
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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