Oil well motor driving system with PFC combined with intermediate voltage stabilization unit

• Main Authors: DAI XINGMIN, SUN HONGJIAN, YAO YONGZHI, WU YONG, YUAN ZHONGWEI, ZHAI XIANXU, YUAN YE, WANG HUI
• Format: Patent
• Language: Chinese; English
• Published: 06.02.2024
• 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 OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROL OR REGULATION THEREOF; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

The invention, which relates to the technical field of the oil well motor driving system, discloses an oil well motor driving system with PFC combined with an intermediate voltage stabilization unit, comprising a transformer module for buck-boost output, a rectification filtering module, a PFC module and an inverter module. The rectifying and filtering module is connected between the transformer module and the PFC module and is used for rectifying the three-phase power output by the transformer module; the PFC module is used for correcting a power factor, the inverter module is used for converting input direct current into alternating current, and when a power grid fluctuates, the oil well motor driving system with the middle voltage stabilizing unit can input wide voltage and stably output inverter bus voltage. Moreover, the adjustable output voltage can be compatible with insulated gate bipolar transistors (IGBT) with different withstand voltages, and is suitable for oil wells with different depths, thereby