Dynamic Model Extraction for Speed Control of Induction Motor Driven by a Voltage Source Inverter with Using System Identification Application

Abstract

In this study, the dynamic model extraction of the three-phase squirrel cage asynchronous motor driven with a voltage source inverter and the system identification for the speed control has been applied. The transfer function of the system corresponding to the dynamic behavior of the asynchronous motor in real time was found by using the System Identification Toolbox in the MATLAB/Simulink program. By using the transfer function found for system, a simulation block diagram was executed. To keep the change in asynchronous motor speed within the desired tolerance limit values, the gain coefficients of PI controller was adjusted automatically by making a simulation study. The gain coefficients of the controller found as a result of the simulation study were applied without any change to the same asynchronous motor that was operated in real time. It has been determined that there was no deviation that might negatively effect the steady-state operation at motor speed against to mechanical load changes. 

An Automatic PI Tuning Method for Photovoltaic Irrigation Systems Based on Voltage Perturbation Using Feedforward Input

“…The difficulty of their use lies in the fact that it is necessary to start with a dynamic model of the system to be controlled. Mathematical models have been developed for some of the subsystems that make up the PVIS [32,33], but there is no complete model of the entire system, mainly due to their great diversity and because they have non-linear characteristics.…”

Design and analysis of a speed controller for fractional‐order‐modeled voltage‐source‐inverter‐fed induction motor drive

“…In this paper, all the above proved ideas in other fields of engineering domains are adopted and analyzed for better speed control of ACIM by using the Tepljakov 3 and Yumurtaci 27 system identification procedures. Our contribution to this study is given below.…”