Analysis of the transient conditions of a three–phase induction motor
Abstract
The aim of this study is to build an experimental work bench and simulate a 4.1 kW (5.5HP) three phase induction motor in order to investigate the machine's transient behavior under various fault conditions. The method used in this study entails performing a series of experiments to determine the per phase parameters of the induction motor, such as no load tests, blocked rotor tests, and DC tests, and then implementing a model for the machine using MATLAB/Simulink in a graphical user interface environment. The machine's corresponding parameters were used to represent the model, and simulation was performed. The collected data were examined to identify the machine's operating characteristics under normal and transient circumstances. Results from this study reveals that the open circuit fault decays more slowly than the short circuit fault, and the peak current is almost twice that of the starting current. Although the transient is brief in duration and therefore unlikely to produce significant heating, it may cause high mechanical strains on the windings. The results demonstrates that the transient characteristics of an induction motor under various fault conditions may be determined entirely via computer simulation
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References
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