In view of the cumbersome operation procedure of the pressure device, the logic control of the well control equipment and the clamping device is formed by the combination of hydraulic pressure and automatic control, and the operation flow is automated. However, the protection function of the power supply design is simple, easy to break, and low in reliability. This paper first introduces the design principle of well control and lift control system combining hydraulic and automatic control, and then analyzes the problems of cold backup and hot backup connection modes of dual AC/DC converters in existing power modules. A design scheme of the dual AC/DC converter power supply system is proposed. The research results show that the dual AC/DC converter can enhance the reliability of the power supply module and better solve the problem of continuous power supply of the DC power supply.