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Mathematical Problems in Engineering
Volume 2016 (2016), Article ID 6740261, 14 pages
Research Article

Model of Transient Process Where Three-Phase Transducer Feeds Induction Motor Equivalent as a Variable Active-Inductive Load

1Advanced Polytechnic School of Vocational Studies Uroševac, 24 Novembre, 38218 Leposavić, Serbia
2Faculty of Technical Sciences, University of Priština, Kneza Miloša 7, 38220 Kosovska Mitrovica, Serbia
3Faculty of Technical Sciences Čačak, University of Kragujevac, Svetog Save 65, 32000 Čačak, Serbia
4Business College of Vocational Studies, Kralja Petra I 70, 18420 Blace, Serbia
5Faculty of Economics, University of Priština, Kolašinska 156, 38220 Kosovska Mitrovica, Serbia

Received 12 March 2016; Accepted 18 July 2016

Academic Editor: Yan-Wu Wang

Copyright © 2016 Nenad Marković et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The paper presents a new approach in the analysis of a transient state in a system where the feeding source is a transducer-IGBT inverter and load is introduced through the induction motor with its parameters. Induction motors with different parameters of powers and power factors are tested. MATLAB simulation of the three-phase inverter that feeds the induction machine has replaced the missing lab equipment with which mathematical model of this system was verified. According to the selected parameters of the inverter and induction machine and through the simulation in the MATLAB program, the results are obtained in the form of diagrams that verify the model of a transient state of the induction machine operation when it operates as a motor which is presented as a variable load. The transient process of the system three-phase bridge inverter whose active-inductive load is the induction machine in the conditions of the change of the load parameters is analyzed. The model of the transient process in the system formed by the inverter in PWM (Pulse Width Modulation) converter and induction machine is developed in the time domain and phase coordinates.