Cogging torque reduction of permanent magnet synchronous motor using multi-objective optimization

Ilka, Reza; Alinejad‐Beromi, Yousef; Yaghobi, Hamid

doi:10.1016/j.matcom.2018.05.018

Cited by 36 publications

(15 citation statements)

References 34 publications

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“…Değer aralıkları Artış (Δ) Hava aralığı (g) mm 1 < g < 2 = 0.02 Mıknatıs kalınlığı (lm) mm 4 < lm < 8 = 0.1 Mıknatıs doluluk oranı (emb) -0.7 < emb < 0.96 = 0.01 Oluk açıklığı (Bs0) mm 3 < Bs0 < 8 Asansör uygulamaları için tasarlanan elektrik motorları performans açısından değerlendirilirken öncelikli olarak önem verilen ölçütler; yüksek verim, düşük vuruntu momenti, stator akı yoğunluğunun 1.8 Tesla'yı aşmaması ve lineer çıkış momenti (düşük moment dalgalılığı) olarak sıralanır [10], [20][21]. Bu bağlamda parametrik analiz sonuçları incelendiğinde; hava aralığı, mıknatıs geometrisi ve stator oluk yapısı parametrelerin değişiminin performans açısından önemli ölçütler olan verim, vuruntu momenti, akı yoğunluğu ve çıkış moment değerleri üzerinde farklı etkileri olduğu görülmektedir.…”

Section: Birimunclassified

Dişlisiz Asansör Uygulamaları için Yüzey Montajlı Senkron Motorun Optimal Tasarımı

Okşar

Yetis

Göktaş

et al. 2020

Fırat Üniversitesi Mühendislik Bilimleri Dergisi

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Öz: Mıknatıslı Senkron Makineler tarafından sürülen dişlisiz asansör sistemleri, geleneksel asenkron motor uygulamalarına kıyasla yüksek verim, yüksek moment yoğunluğu, dişli kutusunun ortadan kalkması ile kayıpların azalması ve sistemin hacminin küçülmesi gibi birçok avantaja sahiptir. Bu çalışmada 800 kg / 10 kişilik taşıma kapasitesine sahip bir dişlisiz asansör sistemini sürmek için tasarlanan 27-oluklu 30-kutuplu Yüzey Montajlı Senkron Motorun (YMSM) tasarımı yapılmıştır. Tasarım süreci içerisinde kritik önem teşkil eden; hava aralığı, oluk açıklığı ve mıknatıs kalınlığı gibi geometrik boyutlar parametrik analiz ve çok amaçlı optimizasyon yöntemi kullanılarak belirlenmiştir. Optimizasyon süreci sonucunda elde edilen motor; verim, akı dağılımı, çıkış ve vuruntu momenti açısından analiz edilmiştir. Enerji verimliliği ve performans açısından optimal bir tasarım hedeflenmiştir. Yapılan tasarım ve analizler ANSYS@Maxwell simülasyon programı kullanılarak gerçekleştirilmiştir.

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Section: Birimunclassified

Dişlisiz Asansör Uygulamaları için Yüzey Montajlı Senkron Motorun Optimal Tasarımı

Okşar

Yetis

Göktaş

et al. 2020

Fırat Üniversitesi Mühendislik Bilimleri Dergisi

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“…Then, the optimization problem is solved using Nondominated Sorted Genetic Algorithm-II (NSGA-II). Figure 3 shows the flowchart of NSGA-II which is summarized as follows (Ilka et al, 2018;Wang et al, 2018aWang et al, , 2018b.…”

Section: Response Surface Optimization Modelmentioning

confidence: 99%

Optimal design of parallel sliders with square-shaped textures considering fluid-structure interaction

Wang

Zhang

et al. 2019

ILT

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Purpose Surface texturing has been proven as an effective means of contact performance enhancement. However, limited work has been done to investigate the regular relationship to solve the multi-parameters problem of textures, and inertia effect and elastic deformation were seldom considered together in previous optimization work. This paper aims to quantitatively obtain the relationship between the textured depth and liquid film thickness and find the effect of deformation on the optimal textured height ratio in elastic parallel sliders. Design/methodology/approach Numerical models of hydrodynamic lubrication are established based on the computational fluid dynamic method. Elastic deformation is considered through fluid–structure interaction (FSI) method. Using response surface optimization method, textured parallel sliders are optimized with maximum loading capacity as the objective. Findings The results show that the optimal height ratios are all within the range of 0.60-0.65 when textured parallel sliders are considered as rigid. After considering the effect of elastic deformation, loading capacity drops and is reduced more obviously with a decrease in the elastic moduli. The optimal height ratios are within the range of 0.60-0.63, which shows that FSI has a considerable influence on loading capacity but has no significant influence on the optimal height ratio. Originality/value The present research provides a theoretical reference for engineering application of elastic textured parallel sliders.

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“…From stator side, the slot opening was optimized [32], stator shoe depth variation [18], magnet-shaping [6], [11], [12], [14], [15], [17], [25]- [27], [41], magnet pole-arc [31], [34], [36]- [39], dummy-slotting, [8], [9], [28], [42]- [45], stepped slot opening [32]. In fact, every CT reduction technique implemented in PMGs structure has its own characteristics and advantages.…”

Section: Introductionmentioning

confidence: 99%

Novel of Cogging Torque Reduction Technique for Permanent Magnet Generator by Compounding of Magnet Edge Shaping and Dummy Slotting in Stator Core

Nur

Joe

Siregar

2020

Int. J. Adv. Sci. Eng. Inf. Technol.

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This paper dealt with the investigation and implementation of the cogging torque reduction technique in permanent magnet generators with a fractional slot stator/rotor combination of 24 slot/18 pole structure. A novel of cogging torque technique in a permanent magnet generator was developed and proposed in the paper. In the study, the cogging torque reduction technique was based on the compounding of two cogging torque reduction techniques, i.e., the magnet edge shaping with dummy slotting in the stator core of the fractional slot number. By employing the CT reduction technique proposed, effects on the decreasing of tangential flux density in the air gap of the permanent magnet generator, while the normal flux density almost remained constant. The tangential flux density is one important parameter regarding the peak of cogging torque in permanent magnet generator or other electrical machine structure. The normal and tangential flux have been analyzed. The cogging torque of the permanent magnet generator was analyzed and presented in the paper. By compounding both cogging torque reduction techniques, i.e., magnet edge shaping and dummy slotting in stator teeth have been expected to achieve the cogging torque reduction. The electromagnetic performance of the permanent magnet generator was performed using a finite element analysis of FEMM 4.2. It has been proved that by combining of magnet edge shaping and dummy slotting in stator teeth can reduce the cogging torque of permanent magnet generator significantly. It has been found that the cogging torque reduction for the proposed structure around 98.08 % compared with the initial structure.

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Cogging torque reduction of permanent magnet synchronous motor using multi-objective optimization

Cited by 36 publications

References 34 publications

Dişlisiz Asansör Uygulamaları için Yüzey Montajlı Senkron Motorun Optimal Tasarımı

Dişlisiz Asansör Uygulamaları için Yüzey Montajlı Senkron Motorun Optimal Tasarımı

Optimal design of parallel sliders with square-shaped textures considering fluid-structure interaction

Novel of Cogging Torque Reduction Technique for Permanent Magnet Generator by Compounding of Magnet Edge Shaping and Dummy Slotting in Stator Core

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