Decoupling control of five-phase tflpm actuator with high-performance current regulator

The five-phase tubular fault-tolerant linear permanent magnet (TFLPM) actuator is a newly investigated machine. Due to its high force/power density, low thrust force ripple and high reliability operation, the actuator is suitable for the active electromagnetic suspension. In order to improve the dynamic performance and minimize the stator losses, a new current controller is designed by incorporating the merits of internal model control (IMC) and dead-time compensator. The IMC is used to achieve the current decoupling control and the dead-time compensator is used to eliminate the third-harmonic current. Simulation results are presented to demonstrate the feasibility of the proposed current control method.