An automatic robust electric system against a failure of the hybrid electric ship for zero emission zone and the method thereof

摘要

The present invention relates to a power system for responding to failure of a power conversion component in a ship of a ship operating a zero emission zone, and more particularly, to an electric system of a hybrid electric ship for improving system stability and efficiency of a hybrid electric ship, The control method includes: a battery pack configured by at least one battery for supplying electric power; A motor drive inverter for generating an output for driving a propulsion motor of the ship with electric power supplied from a battery of an electric ship; A DC / DC converter for converting DC power of the battery into DC power suitable for the motor drive inverter; And an AC / DC converter for converting an AC power source of the diesel generator of the ship into a DC power source, wherein the connection structure of the inverter and the converter is determined by a failure condition of a part generated when the ship is operated, The switching circuit of the inverter is determined by the circuit of the inverter and the boosting topology of the converter is configured according to the structure of the inverter and the AC / DC converter, DC / DC converter, Mode connection switch unit.By performing the functional sharing of the respective power conversion parts in the failure mode of the ship by the electrical system and the control method as described above, an optimized system connection of an appropriate ship can be established according to each condition, Stability can be ensured, and efficient optimization of system management can be performed.;