A NOVEL NONLINEAR TORQUE AND CURRENT CONTROL OF THE INDUCTION MOTOR COUPLE DC MOTOR

Abstract

The stability of control torque tracking problem of the induction motor for Hybrid Electric Vehicle (HEV) applications is addressed. Because the induction motor couple dc motor to increase torque of machines where a high starting torque induction motor with simultaneously reduced starting current. This paper mainly deals with the design of an advanced control law with an observer for a special class of nonlinear systems. These two control strategies are different on the operation principle but their objectives are the same. Torque control of an induction machine based on DTC strategy has been developed and a comprehensive study is present in this research. To perform controller design a torque-flux dynamic model with stator voltage as an input is obtained and separation of the torque and flux regulation is achieved. The performance of proposad method has been demonstrated by simulations performed using a versatile simulation package, Matlab/Simulink. Several numerical simulations have been carried out in a steady state and transient operation on a speed control mode.