Energy management and control method of electric propulsion ship

• Main Authors: YU WANNENG, WANG WENBIN, FU QINGYU, JI HOUZHI, LI SUWEN
• Format: Patent
• Language: Chinese; English
• Published: 06.03.2018
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The invention relates to an energy management and control method of an electric propulsion ship. The method mainly comprises a charging control policy and a discharging control policy, wherein the charging control policy includes: realizing connection of a charger and a lithium battery pack through relays S3, S8, S11 and S14 of a switch cabinet, realizing charging of the lithium battery pack, andadjusting work states of the relays S3, S8, S11 and S14 in real time according to the fault state and the state of charge (SOC) of the lithium battery pack in a charging process; and the discharging control policy includes: realizing the connection of a propulsion system, an inversion system and the lithium battery pack through relays S1, S2, S4, S5, S6, S7, S9, S10, S12 and S13 of the switch cabinet, realizing discharging of the lithium battery pack, and adjusting the work states of the relays S1, S2, S4, S5, S6, S7, S9, S10, S12 and S13 in real time according to the fault state and the stateof charge (SOC) of the li