Abstract: The application of medium voltage drive in shale gas production LUO Pengfei1, WU Junlin2, GOU Bo1 (1. Sichuan Honghua Electric Co., Ltd., Chengdu 610000, China; 2. Luzhou Laojiao Co., Ltd., Luzhou 646000, China) The large-scale development of unconventional oil and gas resources has driven the rapid development of fracturing equipment. In response to the problem of heat dissipation difficulties, unstable performance, low operating efficiency, and high oil consumption per cubic meter of liquid in diesel-driven fracturing skids, combined with the mechanical characteristics of the load and the on-site construction application, based on the performance and frequency conversion control technology of ACS5000, the application advantages of medium-voltage inverters in high-power electric-driven fracturing pumps are proposed, the performance and maintenance of on-site fracturing are analyzed, and common faults and causes are summarized. Field application results show that the NPC/H-bridge topology of ACS5000 achieves high voltage and low current output, reducing system heat generation; efficient process control performs well in low-load (high pressure, low displacement) fracturing, with a control accuracy of 0.05~0.1 m³/min, achieving stepless adjustment of displacement; power utilization is always maintained at the best state, achieving effective energy saving; power consumption per cubic meter of liquid is proportional to the construction pressure, when the average pressure is 60~100 MPa, the power consumption per cubic meter of liquid is about 19.42~29.02 kW·h/m³, which greatly reduces the cost of shale gas production.