Analysis Of Three To Five-Phase Transformer

Sulaiman, Mohammad Nur Hakimi (2015) Analysis Of Three To Five-Phase Transformer. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Beginning in the late 1970s, the first five-phase induction motor drive system was proposed. Since then, there is large number of research has been in placed to develop the multiphase drive systems. Due to that, there is a need to develop a static phase transformation system in order to provide a multiphase output from the available three-phase supply. Three-phase supply are readily available in most area such as industrial premises, power generation and distribution station or from the grid. The study of five-phase transformer is not yet matured and the development of five-phase transformer is still in progress. In this study, the focus is to design and develop a transformer that able to convert a fixed voltage three-phase supply to a five-phase while maintaining its frequency. There are three single laminated cores are used to develop the five-phase transformer by manipulating the winding arrangement to produce five-phase output from three-phase source. Enameled wires are used in this research due to its thin layer of insulation for efficiency and ability to operate at high temperature. Besides, in this study, the performance of the transformer has been analyzed in term of efficiency and voltage regulation. There are two other parameters that has been analyze are the phase shifts of the output waveform and the voltage ratio from primary to secondary windings. To achieve the objectives, the output voltage should close to sinusoidal in shape and the phase shift for five-phase system is approximately 72°. In addition, total harmonic distortion of five-phase transformer also has been analysed and presented in this report. Thus, this proposed five phase transformer connections, is able to run the five-phase induction motor in the laboratory.

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