Ship electric propulsion device based on alternating current-direct current-alternating current frequency converter

• Main Authors: REN XINGPENG, CHEN WANSHU, LIU ZHAOLIANG, GENG YANTING
• Format: Patent
• Language: Chinese; English
• Published: 11.10.2019
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; MARINE PROPULSION OR STEERING; PERFORMING OPERATIONS; RELATED EQUIPMENT; SHIPS OR OTHER WATERBORNE VESSELS; TRANSPORTING

The utility model provides a ship electric propulsion device based on an AC-DC-AC frequency converter, and the device comprises a prime motor which provides first mechanical energy; the generator is connected with the prime motor and converts the first mechanical energy into first alternating-current electric energy; the motor is connected with the generator and converts the first alternating-current electric energy into second mechanical energy; the propeller is connected with the motor and drives the ship to move through second mechanical energy provided by the motor; the AC-DC-AC frequencyconverter is connected between the generator and the motor and comprises a rectification part and an inversion part; the rectifying part is connected with the generator and converts the first alternating-current electric energy into 24-pulse rectified direct-current electric energy; and the inversion part is connected between the rectification part and the motor and is used for converting the direct-current electric energ