Integrated Suspending and Rotating Controller Based on TMS320F28377D for Magnetically Suspended Rotor

Abstract

This paper proposes an integrated digital controller for Magnetically Suspended Rotor (MSR) based on the TMS320F28377D Digital Signal Processor (DSP), which can control both Magnetic Bearing (MB) and motor. The control models of the MBs and the motor are introduced, as well as their control laws. There are two floating CPUs in TMS320F28377D, so one of them is arranged to control the suspending motor of the rotor and the other is to drive the rotor. The communication between two CPUs is executed by Inner Processor Communicate (IPC) module. Both of the hardware scheme and the software scheme are introduced. Suspending experiment and rotating experiment are conducted to verify the function and performance of the proposed controller that it can suspend and drive rotor simultaneously.