Dynamic Performance Comparison for Improved Vector and Scalar Controlled Asynchronous Motor Drives
Subject Areas : journal of Artificial Intelligence in Electrical Engineering
Mohsen Ebadpour
1
(
Department of Electrical Engineering. Ahar Branch, Islamic Azad University, Ahar, Iran
)
Hadi Naghizadeh Ghishlagh
2
(
Department of Electrical Engineering, Ahar Branch, Islamic Azad University, Ahar, Iran
)
Hossein Nasiraghdam
3
(
Department of Electrical Engineering, Ahar Branch, Islamic Azad University, Ahar, Iran
)
Keywords: Induction machine, direct torque control (DTC), field-oriented control (FOC), numerical control, SVPWM technique,
Abstract :
This article presents comparative studies for dynamic performance evaluation of vector- and scalar-controlled asynchronous (induction) motor (ASM) drives based on improved control baselines. To compare the ASM drive responses, four control strategies including improved direct torque control (DTC), improved indirect field-oriented control (IFOC), feedback (FB) linearization, and scalar vectorized Volt per Hertz (VV/Hz) are considered with their enhanced versions based on the space vector pulse-width modulation (SVPWM) switching technique. The main objective of this work is to implement feasible dynamic computer functions of the ASM drive to assess its torque and speed responses over the variable low and high speeds for pure or hybrid electric vehicle traction drive applications using MATLAB/Simulink software. To validate the overall performance of the ASM drive, several case studies are developed to evaluate the transient behavior of the system from the starting stage to the steady state over the variable load conditions.