[논문]Efficiency Improvement for Concentrated Flux IPM Motors for Washing Machines

Yoon, Keun-Young; Kwon, Byung-Il

doi:10.5370/jeet.2014.9.4.1277

Efficiency Improvement for Concentrated Flux IPM Motors for Washing Machines 원문보기

Journal of electrical engineering & technology, v.9 no.4, 2014년, pp.1277 - 1282

Yoon, Keun-Young (Dept. of Mechatronics Engineering, Hanyang University) , Kwon, Byung-Il (Dept. of Electronic Systems Engineering, Hanyang University)

Abstract ▼ AI-Helper

Concentrated flux interior permanent magnet (CFIPM) motors have the advantage that their utilization of flux linkage is more efficient than that of general IPM motors and CFIPM motors are suitable for washing machine motors, which demand low-speed, high-torque specifications. However, low efficiency occurs in the low-speed high-torque mode considering the high-speed operation for spin mode. This paper proposes a magnet overhang structure between the rotor core that reduces leakage flux and improves efficiency for a CFIPM in wash mode. Optimization of the 3D design of magnet overhang structures is performed to improve the efficiency with the same quantity of permanent magnets. The validity of the optimal design is experimentally verified through the fabrication of prototypes.

주제어

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가설 설정

4. First, objective functions and constraints are defined. Then, sampling points is established in accordance with the design of experiment (DOE).

제안 방법

This study proposes a magnet overhang structure between the rotor core and the magnet that reduces leakage flux and improves the efficiency of the wash mode. The magnet overhang structure means that the magnet height is greater than the rotor core height.

이론/모형

Then, sampling points is established in accordance with the design of experiment (DOE). Next, the approximation modeling is performed using the Kriging technique and the GA. Finally, the optimal values of the design variables are obtained.

성능/효과

Optimization of the 3D design is performed and as shown in Table 6. The result showed improvement of the BackEMF by 2.2% over the basic model, with a 2.0 point improvement in efficiency. In addition, by fabricating and experimenting with the prototype model, we confirmed that the actual efficiency is improved.

참고문헌 (18)

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상세보기
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상세보기
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상세보기
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상세보기
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상세보기
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상세보기
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