Abstract
The deep lunar soil loading process is complicated and volatile; it is difficult to achieve stable and reliable drilling sampling. In order to realize the rotary drive control of low-speed high torque start-up and high-speed cutting dumping of the spiral drilling tool, the redundant double backup winding BLDC motor is used as the driving source of the spiral drilling tool, the mathematical model of torque and speed of the double winding BLDC motor is established, and a dual winding BLDC motor is designed. The drive circuit topology scheme of synchronous operation of winding is simulated and analyzed, and the control performance experiment is carried out combined with the prototype. The test results show that the topological structure of the driving circuit can meet the driving control requirements of lunar soil and lunar rock drilling sampling process, and improve the safety and reliability of the drilling sampling process.
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