Comprehensive Drive of PM Synchronous Machines Under Unpredictable Dynamics

This research is dedicated to the design of Comprehensive control for permanent magnet synchronous machines (PMSMs) that have unpredictable system transient. In field-oriented control, the traditional method employs conventional proportional-integral (PI) controllers to regulate the PMSM's rotor speed and dq-axis currents. The paper introduces two control methods: conventional field-oriented control (FOC) and simplified technique. The initial step involves determining the control coefficients for multiple PMSMs with different power ratings through an empirical study, while power ratings are easily available on all the motors' nameplates which makes it simple to directly calculate the control coefficients. Each of these coefficients is then represented using generalized mathematical formulas. In FOC, the control coefficients are determined solely based on the machine power ratings. In contrast, the simplified technique obtains generalized expressions for control coefficients using the number of pole pairs and the flux linkage. Compared to FOC, the simplified technique offers significantly simpler generalized mathematical expressions. To validate the effectiveness of the proposed approach, validation is conducted in the MATLAB/Simulink environment utilizing various PMSMs ranging from 0.2HP to 10HP. The results demonstrate precise tracking of the reference speed and dq-axis reference currents. Hence, the suggested scheduling coefficients strategy proves to be practical and suitable for self-commissioning machine control systems.