Natural Variable Modeling and Performance of Interior Permanent Magnet Motor with Concentrated and Distributed Windings

Description

Download Natural Variable Modeling and Performance of Interior Permanent Magnet Motor with Concentrated and Distributed Windings. Electrical Engineering students who are writing their projects can get this material to aid their research work.

Abstract

Interior Permanent Magnet (IPM) motor is widely used for many industrial applications and has relatively high torque ripple generated by reluctance torque.

Since the configuration of the stator has great influence on reluctance torque, different stator configuration is necessary to improve the torque performance of IPM motor.

Natural variable modeling and performance comparison of Interior Permanent Magnet Motor with Concentrated winding (CW), Short pitched and Full pitched distributed winding (DW) is presented in this project report.

Three phase Interior Permanent Magnet Motor with identical rotor dimensions, air gap length, series turn number, stator outer radius, and axial length was studied with different stator winding configuration.

Basic parameters and machine performance, such as inductances, copper losses, power density, efficiency at high and low speed, torque ripple, rotor speed with load torque, phase currents, electromagnetic torque, controllability and demagnetization tolerance are compared.

Introduction

Over the years, the application of electric motors has replaced vast numbers of mechanical rotating devices. From tiny motors used in wristwatches, to very large motors used for ship propulsion and wind turbines.

There are numerous types of electric motors available for present-day applications, of which the AC types are most commonly used in high performance applications due to its increased efficiency and excellent dynamic performance.

The Induction, Surface Permanent Magnet (SPM), Inset Permanent Magnet Machine, and Interior Permanent Magnet (IPM) machine types have already been applied to present day drive systems.

Induction, SPM and inset PM machines usually have a lower power rating compared to the IPM machine and are most commonly applied as an Integrated

Motor Assist (IMA) system, where the main driver of the vehicle is the internal combustion engine while the electric motor assists. On the other hand, the IPM machine itself produces up to 73kW or more of power and can be driven in full electric mode, producing zero emissions.

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