Robust speed control of a PMSM through sliding mode controller design

Abstract

This paper presents a design and application of sliding mode control (SMC) scheme for the robust speed control of a permanent magnet synchronous motor (PMSM) subjected to system parameter and load variations. A linearized model of a PMSM is derived and conventional proportional-integral-derivative (PID) and SMC speed controller are designed respectively. An effective algorithm is implemented on DSP TMS320F28335 and some experimental results and comparisons are given to show the control performance, especially the robustness.