Adaptive speed control of permanent magnet synchronous motor

This paper deals with the design and application of an adaptive control based on Weighted Minimum Prediction Error (WMPE) control strategy of Permanent Magnet synchronous Motors (PMSM). The traditional Proportional-Integral (PI) controller is largely used in industry because of the robustness that procures this regulator. When the dynamics of the system vary over time or with operating conditions, the PI controller became not available. The (WMPE) control strategy combined with a recursive least square estimation algorithm gives an Adaptive controller for a drive speed seem to be a promising solutions to achieve the required performance. In this study we apply adaptive regulator in place of PI controller of the field-oriented control scheme of the PMSM. The simulation results obtained show the efficiency of the proposed controller ensure o robustness against load and parameters variations and to achieve the required performances.