Simple and Robust Control Algorithm for Three Phases Hybrid Excitation Synchronous Motor Drive

this paper is present a simple control strategy of a synchronous motor with hybrid excitation based on excitation current regulation. This control technique makes it possible to impose approximately constant stator currents irrespective of the speed and the resistive torque of the vehicle. The designer has the choice of regulating these currents relative to their choice of the reference current. This control technique is possible by regulating the excitation current by a chopper with two quadrants. The regulation of the excitation current causes the regulation of the electric constant of the motor and subsequently the regulation of the electromagnetic torque necessary to drive the vehicle at the desired speed. This control technique allows a significant simplification of the simulation time of the control algorithm with respect to the classical control laws namely: classic scalar control, direct control of the torque (DTC), control by flow orientation and vector control. The control strategy developed is validate following the implementation of the global model under the Matlab-Simulink simulation environment. The results of simulations are with a good scientific level and encourage the industrialization of the global system.