Induction Motor Fed By Γ Z- Source Inverter
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2015, Vol 3, Issue 4
Abstract
The main focus is on the losses that occur in an Induction motor and to select a suitable Inverter that feeds the Induction motor. Various analysis are performed on the different types of Inverters and on completion of those analysis, the Gamma Source Inverter has better performance characteristics is chosen to fed the Induction motor. This project also deals with the possibility of energy savings in Induction motor. The modeling of Gamma source inverter has been presented using MATLAB/SIMULINK. The normal Impedance-source Inverters are Inverters with voltage-buck-boost capability that cannot be achieved by the traditional Inverters. Their boost capability is introduced by shorting their phase legs without causing damages. Impedance-source inverters are therefore less prone to false triggering caused by electromagnetic interference. Present Impedance-source inverters are, however, burdened by their low modulation ratio at high input-to-output gain. Such low modulation usually leads to high-voltage stresses across the components and poor spectral performance at the inverter output. To avoid these problems, Inverters with coupled transformers have been introduced, but they usually lead to high turns ratio, and hence many winding turns, at high gain. An alternative would then be the asymmetrical Γ- source Inverters proposed in this paper, whose Gain is raised by lowering their turns ratio toward unity. The input current drawn by the proposed inverters is smoother and, hence, more adaptable by the source. Theories and experimental results have been presented in this paper for validating the concepts proposed.
Authors and Affiliations
Dr. V. Jamuna, R. Sivaprasad, M. Premkumar
Keywords
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