Elektrikli Araç Uygulamaları İçin Doğrudan Tahrikli Bir BLDC Motorunun Kapsamlı Tasarımı ve Testleri

Öz

Bu çalışma, hafif bir elektrikli araç (EV) için 2 kW'lık teker içi fırçasız doğru akım (BLDC) motor tasarımını sunmaktadır. EV, elektrikli araç yarışlarında önceden tanımlanmış bir rota için tasarlanmıştır. BLDC motor doğrudan aracın tekerlek jantına monte edilmektedir. Başlangıçta, EV'nin dinamik modeli araç özelliklerine göre hesaplanmıştır. Motorun oluk/kutup oranı 36/32 olarak seçilmiştir. Stator, rotor ve mıknatıslar için tasarımlar daha sonra düşük vuruntu torku ve yüksek verimlilik hedeflenerek motorun sınır boyutlarına göre geliştirilmiştir. Bunu başarmak için stator diş uçları arasındaki mesafe optimize edilmiştir. Tasarım, 2B sonlu elemanlar analizleri ile doğrulanmış ve ardından motorun üretimi gerçekleştirilmiştir. Deneysel kurulumla gerçekleştirilen performans testleri, tasarımın deneysel sonuçlarla örtüştüğünü doğrulamıştır.

Anahtar Kelimeler

• BLDC motor
• Elektrikli araç
• Elektrik motor tasarımı
• Dıştan rotorlu
• Elektrikli araç dinamik modeli

Comprehensive Design and Testing of a BLDC Motor for Direct Drive EV Applications

Öz

This paper proposes a 2 kW in-wheel brushless direct current (BLDC) motor design for a light electric vehicle (EV). The EV is designed for a predefined route in electric vehicle races. The BLDC motor was directly mounted into the vehicle's wheel rim. Initially, dynamic model of EV was calculated according to vehicle characteristics. The motor's slot/pole ratio was selected as 36/32. The designs for the stator, rotor, and magnets were subsequently developed based on the motor's boundary dimensions, aiming for low cogging torque and high efficiency. To achieve this, the distance between stator tooth tips was optimized. The design was validated through 2D finite element analyses, followed by the motor's production. Performance tests conducted with the experimental setup confirmed that the design matches the experimental results.

Anahtar Kelimeler

• Electric vehicle
• BLDC motor
• Electric motor design
• Outer rotor
• EV dynamic model

Teşekkür

The authors would like to thank to Sakarya University of Applied Sciences, SUBU-TETRA Electromobile Team and its members for their support.

Kaynakça

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