SHORE-BASED VARIABLE FREQUENCY POWER SUPPLY SYSTEM IN PORT

• Main Authors: HE, YINPING, LIU, FANGPING, BIAN, CHEN, WANG, FABIN, XU, YING, WANG, FENG
• Format: Patent
• Language: Chinese; English; French
• Published: 20.09.2012
• 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; AUXILIARIES ON VESSELS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATION; PERFORMING OPERATIONS; RELATED EQUIPMENT; SHIPS OR OTHER WATERBORNE VESSELS; SYSTEMS FOR STORING ELECTRIC ENERGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING

A shore-based variable frequency power supply system in port comprises a variable frequency power supply (C), a port high-voltage substation (A) and a ship power system (H). An input terminal of the variable frequency power supply is connected with the port high-voltage substation; the output terminal of the variable frequency power supply is connected with the ship power system. The power supply system can continuously output a three-phase AC voltage that its voltage can be regulated in a range of 0~6.6kV or 0~10kV and its frequency can be regulated in a range of 0~60Hz. The output side of the variable frequency power supply is connected with a distribution circuit (G) via cable reels (F), the high-voltage output supplies power to the ship power system via the distribution circuit directly, and the low-voltage output distributes power to the ship power system via a step-down transformer (T1). The power consumed by the power supply system is drawn from the port high-voltage substation, thus, the environment p