Research On Vector Control For Synchronous Reluctance Machine

Numerical control machine tool is high efficiency, high precision, high flexible machine. As an ideal machine tool, it requires a high performance drive system. To be one of the most important part, Spindle drive not only requires high precision but also requires invariableness torque output and wide range invariableness power output.Some kinds of AC motor spindle drive systems available are summarize ed first in this paper. Indicated that Synchronous reluctance machine can be used as Spindle drive. Compared the advantage and disadvantage of them.Indicated the virtue of the synchronous reluctance machine as spindle driver.Analyzed several control strategies for synchronous reluctance machines. The three main control strategies considered have as their objectives to allow maximum rated torque, maximum rate of change of torque and maximum power factor, Constant current in d-axis control.Digital PI regulators which are simple applied control method, and Pulse Width Modulation (PWM) technique are introduced in Chapter 3. By using the three phase inverter to generate the space vector PWM, to drive the Synchronous reluctance machine.Chapter 4 introduces the hardware and software of the controller. Especially, the hardware is the fully digital circuit based on TMS320LF2808B and IPM. Finally, the experiment equipments are introduced, and the experiment result are presented. The result proves that compared with PMSM, Synchronous reluctance machine is ideal for spindle drive.