Electromagnetic Energy Conversion Efficiency Enhancement of Switched Reluctance Motors With Zero-Voltage Loop Current Commutation

被引：35

作者：

Fernando, W. U. Nuwantha ^{[1
]}

Barnes, Mike ^{[2
]}

机构：

[1] RMIT Univ, Sch Elect & Comp Engn, Melbourne, Vic 3000, Australia

[2] Univ Manchester, Sch Elect & Elect Engn, Manchester M60 1QD, Lancs, England

来源：

IEEE TRANSACTIONS ON ENERGY CONVERSION | 2013年 / 28卷 / 03期

关键词：

Copper loss; core loss; current chopping; excitation control; single pulse; switched reluctance (SR) motor; zero-volt loop (ZVL); CORE LOSSES; MACHINES; CANCELLATION; PERFORMANCE; STATOR; NOISE;

D O I：

10.1109/TEC.2013.2272638

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Zero-voltage loop (ZVL) commutation in switched reluctance (SR) motor operation can result in a significant improvement of their performance by lowering the flux-linkage peaks and harmonic magnitudes of the magnetic flux densities within the core of the SR motor. The efficiency enhancement provided by ZVL commutation, especially in high-speed SR motoring has not been thoroughly investigated to-date. This paper investigates the energy conversion efficiency of SR motors with ZVL current commutation. The lowering of core losses is investigated with finite element modeling of a 250 kW 12/8 SR motor. An enhancement of efficiency in the ranges of 0-3% and 0-5% is computed considering operation below base-speed and above base-speed respectively. The effect of core material on the ZVL commutation performance is also investigated for the 250 kW 12/8 SR motor. The increase of efficiency with ZVL is further validated with experimental results on a 300 W 6/4 SR motor which achieves an enhancement in the range of 2-6%.

引用

页码：482 / 492

页数：11

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