Transient analysis of induction motor using different simulation models

Sarac, Vasilija and Cvetkovski, Goga (2012) Transient analysis of induction motor using different simulation models. In: Digest book of 4th Symposium on Applied Electromagnetics. Universitas-Gyor Nonprofit Kft, pp. 117-119. ISBN 978-963-9819-85-6

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Squirrel cage induction motors have wide range of applications in many industrial drive systems due to their simple construction, robust design and low operational costs. Their application becomes even wider as a result of implementation of voltage inverters providing very good speed-torque control characteristics. In this paper a dynamic behaviour of a squirrel cage induction motor type 2AZ 155-4, produced by Rade Koncar, is analysed. The motor has the following rated data: voltage (Δ/Y) 220/380 V, number of poles 2p=4, rated current 8,7/5 A, power factor cosϕ=0,81, rated speed nn=1410 rpm, frequency 50 Hz. The first simulation motor model, supplied from a symmetrical power supply, is developed in MATLAB/Simulink [1]. The following dynamic motor characteristics, such as: speed characteristic, electromagnetic torque characteristic and current were obtained from this model. Than the analysis is extended with a simulation model of the motor fed by a voltage inverter. In this case the motor transient speed, current and electromagnetic torque characteristics are obtained, for rated frequency as well as for frequencies lower and higher than the rated one. The results obtained from the simulation in MATLAB/Simulink are compared and verified with the results from the second simulation model developed in the software program PSIM. Distribution of magnetic flux density inside the motor cross section is gained by application of the Finite Elements Method (FEM) for all motor operation regimes. Simulation

Item Type: Book Section
Subjects: Engineering and Technology > Electrical engineering, electronic engineering, information engineering
Divisions: Faculty of Electrical Engineering
Depositing User: Vasilija Sarac
Date Deposited: 31 Mar 2014 07:59
Last Modified: 28 Apr 2014 09:22

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