Nonlinear adaptive-backstepping controller design for a matrix-converter based PMSM control system

This paper proposes a novel controller design for a matrix-converter based PMSM control system. A nonlinear adaptive backstepping controller is proposed to improve the speed and position responses of the PMSM control system. By using the proposed controller, the system can track both speed and position time-varying commands well. A satisfactory servo performance can be achieved. In addition, the realization of the controller is very simple. All of the control loops, including current-loop, speed-loop, and position-loop, are implemented by a 32-bit TMS320C40 digital signal processor. The hardware, therefore, is very simple. Several experimental results are shown to validate the theoretical analysis.

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