Comparative Analysis Between the PI Speed Controller and Two-Degrees-of-Freedom Speed Controller for Induction Motor Drive

摘要

We present in this paper a comparative study between a PI speed controller and the two-degree-of-freedom (2DOF) speed controller, used in a sensorless vector control system with direct orientation after the rotor flux. The simultaneous estimation of the speed and rotor flux is done by using an extended Gopinath Observer (EGO). Comparative analysis is performed by using simulation in the Matlab-Simulink programming environment.