Development of a Permanent Magnet Direct Drive System for Mining Flotation Machine

This paper designs a permanent magnet direct drive system for mining flotation machine. Firstly, the system is based on the field-oriented vector control method combining Maximum Torque Per Ampere control and Field-Weakening. Secondly, the hardware and software platform is designed and built, and the operation test is carried out. Finally, the test results show that the permanent magnet direct drive system has better dynamic and static response performance than the traditional flotation machine driven by asynchronous motor. And in practical application, the energy consumption is smaller and the economic benefit is higher.