Torque Performance of Optimally Designed Six-PhaseReluctance DC Machine

Author

Rakgati, Edward T. ; Kamper, Maarteen J. ; Le Roux, Abraham D.

Author_Institution

Dept. of Electr. & Electron. Eng., Stellenbosch Univ.

Volume

3

fYear

2006

fDate

8-12 Oct. 2006

Firstpage

1186

Lastpage

1192

Abstract

In this paper the principle, basic torque theory and design optimisation of a six-phase reluctance dc machine are considered. A trapezoidal phase current waveform for the machine drive is proposed and evaluated to minimise ripple torque. Low cost normal laminated salient-pole rotors with and without slits and chamfered poles are investigated. The six-phase machine is optimised in multi-dimensions by linking the finite-element analysis method directly with an optimisation algorithm; the objective function is to maximise the torque per copper losses of the machine. The armature reaction effect is investigated in detail and found to be severe. The measured and calculated torque performances of a 35 kW optimum designed six-phase reluctance dc machine drive are presented

Keywords

DC machines; finite element analysis; optimisation; reluctance machines; torque; 35 kW; armature reaction effect; finite-element analysis method; laminated salient-pole rotors; optimisation algorithm; six-phase reluctance DC machine; torque performance; trapezoidal phase current waveform; Algorithm design and analysis; Armature; Copper; Costs; DC machines; Design optimization; Finite element methods; Joining processes; Optimization methods; Torque; Reluctance dc machine; armature reaction effect; current waveform; design optimisation; finite element analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2006. 41st IAS Annual Meeting. Conference Record of the 2006 IEEE

Conference_Location

Tampa, FL

ISSN

0197-2618

Print_ISBN

1-4244-0364-2

Electronic_ISBN

0197-2618

Type

conf

DOI

10.1109/IAS.2006.256682

Filename

4025369