DP3 ship energy storage closed-loop power system and energy storage battery pack control method thereof

Abstract

The invention relates to a DP3 ship energy storage closed-loop power system and an energy storage battery pack control method thereof, a plurality of groups of high-capacity energy storage battery packs are respectively connected to non-adjacent main distribution boards through DC / AC modules and transformers, and a high-capacity energy storage battery pack control system is integrated in a ship central control system. And power station power peak clipping and valley filling and absorption of high-power load energy feedback are carried out in the high-capacity energy storage battery pack power system. The high-capacity energy storage battery pack is subjected to high-rate discharge in the starting process of the standby generator set so as to supplement power required by the dynamic positioning system, and dynamic positioning failure is prevented; the high-capacity energy storage battery pack can supply power to main auxiliary equipment in the rapid restarting process of the system after the whole ship is powered off, so that the time required from the power loss of the system to the recovery of the dynamic positioning capability is shortened; the large-capacity energy storage battery pack is used for carrying out peak clipping and valley filling on the power of the power station, the power required by loads is dynamically supplemented, the output power fluctuation of the power station is reduced, and the number of on-grid generators is optimized under various working conditions.

Description

technical field [0001] The invention relates to a control technology, in particular to a DP3 ship energy storage closed-loop power system and a method for controlling the energy storage battery pack. Background technique [0002] The dynamic positioning system includes a power system, a propulsion system, a dynamic positioning control system and an independent joint joystick system. The dynamic positioning system maintains the ship's position and heading under the influence of wind, waves and currents by controlling the thrust and direction of the propeller. [0003] The main classification societies grant different additional symbols to ships with dynamic positioning systems according to the differences in system reliability and equipment redundancy. The general requirements for ships with DP3 symbols are that no single-point failure will occur A Loss of Position (LOP) incident involves the loss of a single compartment due to fire or flooding. [0004] For ships with DP3 ...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problem that the dynamic positioning capability is affected for a long time during the fault handling of the DP3 ship closed-loop power system, a DP3 ship energy storage closed-loop power system and its energy storage battery pack control method are proposed to solve the possible faults of the existing DP3 closed-loop power system Removed the problem of short-term insufficient dynamic positioning capability or short-term loss of dynamic positioning capability due to power failure of the whole ship

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