Design and Implementation of Charging and Discharging Device for Electric Inland River Cruise ship

Abstract

This paper designs a charging and discharging device for electric ships. The electric ships’ battery is very large, when performing charge and discharge control of the battery system, it is necessary to manage the charge and discharge current of the battery system reasonably. The battery charging and discharging device can convert the voltage of the energy storage system with a large variation range into a stable DC output voltage, which can control the charge and discharge current of each cluster, and complete the charge and discharge management of each battery cluster. The battery charging and discharging device can be quickly and dynamically adjusted to adapt to changes in the load, and has high operating efficiency and power density. This charging and discharging device has been successfully applied to a certain type of inland river pure electric cruise ship, which will significantly improve the reliability of large-capacity lithium battery ships, and significantly improve the environment of the Yangtze River and other inland river economic zones, and has good applicability in the field of new energy ships.