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Design of outer rotor field excitation flux switching motor for direct-drive application

Syed Othman, Syed Muhammad Naufal (2016) Design of outer rotor field excitation flux switching motor for direct-drive application. Masters thesis, Universiti Tun Hussein Onn Malaysia.

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This thesis contributes to a better understanding of the design and analysis of a 12S- 14P three phase Outer Rotor Field Excitation Flux Switching Motor (OR-FEFSM) for direct-drive applications in Electric Vehicles (EV). Research work on the 12S-14P inner-rotor FEFSM carried out by others have reported a maximum torque figure of 226.12Nm and a power output of 127.61kW. The research work carried out in this thesis focuses on the design and analysis a class of 12S-nP three-phase Outer Rotor Field Excitation Flux Switching Motor (OR-FEFSM) configurations, where n is the number of poles of the motor. In particular, a total of five rotor pole configuration namely the 12S-10P, 12S-14P, 12S-16P, 12S-20P and 12S-22P configuration were investigated. Performance analysis of the torque and power versus speed characteristics were carried out using the Finite Element Analysis (FEA) software developed by JMAG Designer, version 13.0 which is able to calculate torque and power figures to six decimal places of accuracy. The optimum structure for ORFEFSM was identified by conducting an extensive search in 2-D parameter space with constant diameter and stack length using the Deterministic Optimisation Method (DOM), which gives optimum output torque and power figures upon convergence. The simulation results obtained showed that 12S-14P was the optimal rotor pole configuration where a torque figure of 221.38 Nm and 186kW power output was obtained, which is 5.41% greater than the targeted performance specifications. The simulation results also showed that the 12S-14P rotor configuration can reach an efficiency figure as high as 73.33% in normal driving conditions.

Item Type: Thesis (Masters)
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2000-2891 Dynamoelectric machinery and auxiliaries
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 06 Feb 2017 07:01
Last Modified: 06 Feb 2017 07:01
URI: http://eprints.uthm.edu.my/id/eprint/8840
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