Design of Five Phase Induction Motor

Design of Five Phase Induction Motor

Sanket M. Bhimgade#1  Swapnil C. Chaudhari#2 Roshan B. Durge#3 Vabeihrohnei Chozah#4 Parag P. Salunke#5

Department of Electrical Engineering

Dr. Babasaheb Ambedkar Technological University, Lonere, Raigad (MS - 402 103)

1sanketbhimgade@gmail.com , 2swapnil.28492@gmail.com , 3roshan.durge16@gmail.com , 4pawhrohnei@gmail.com ,

        Abstract: The conversion of electrical energy into mechanical energy has been and continuous to be a dominant form of power transmission for industrial purposes. The alternating current (AC) electric induction motor has been an industry workhouse for electromechanical conversion for over 100 years. This paper introduces the fundamental electric and mechanical principles of 5 phase AC induction motor. In this paper, a generalized formula is proposed for the selection of number of slots required for 5-phase alternative current (AC) machine design and the criterion for selecting the starting points of each phases.

Keywords: Induction motor. Five phase, Stator winding.

I. INTRODUCTION

        In general, the induction machines having three-phase windings are normally used, since the standard power supply is three phase. However, when fed by an inverter, there is no need for a fixed number of phases, some other phases being possible and advantageous. A multiphase machine can operate normally after loss of one or more phases. An important aspect of machines with a higher number of phases is their improved reliability, since they can operate even when one phase is missing. An increase in number of phase can result in an increase in torque/ampere relation for the same volume of the machine, such that five-phase machines can develop torque using not only the fundamental, but also using higher harmonics of the air gap field.

        Multi-phase machines have attracted increased interest in recent years. This is due several advantages that they offer as compared to the conventional three-phase ones. In the presence of a power electronic converter which is needed for variables speed ac drive, the number of phases is essentially not restricted and multiphase machines are nowadays considered as potentially viable solutions for high power and high current applications. Apart from their applications in traction and electric ship propulsion, some investigation is going on for a more-electric aircraft concept, because of their fault tolerance which enables disturbance-free mode of operation in case of loss of one or more phases.