DSP based feedback linearization control of vector controlled induction motor drive

In this paper a feedback linearization control (FLC) is implemented on a vector controlled induction motor (IM) drives. A complete mathematical model of the vector controlled drive and feedback linearization controller is derived and simulation study in MATLAB/Simulink is carried out and dynamic performance of the drive is presented under different operating conditions. Two new control inputs are developed using output of Proportional Integral controllers which regulate the rotor flux and rotor speed. These new control inputs are used to create decoupled flux producing components of stator current and torque components of stator current. The conventional indirect field oriented control (IFOC) and FLC based controlled induction motor drive is simulated in MATLAB/Simulink and validated experimentally on developed laboratory prototype usingdSPACE1104 controller boardand dynamic performance of the both controlled scheme is compared.

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