Comparative Analysis of Three PI Tuning Methods for Speed and D-Q Axis Current Controllers in PMSM Speed Control Using FOC

The paper presents a comparative study of three methods used for the Field Oriented Control (FOC) of Permanent Magnet Synchronous Motors (PMSM). The presented work explores three tuning methods (i) manual tuning (ii) mathematical equation-based tuning based on literature and (iii) Autotuner from MathWorks for the speed, d-axis, q-axis control of PMSM motors. The steps for each tuning method are explained in detail along with their performance comparison. The conclusion highlights the trade-offs in performance and effort for each method, offering insights to help users select the most suitable approach.