DESIGN OF SAFETY CRITICAL HIGH POWER DENSITY AND HIGH SPEED PERMANENT MAGNET SYNCHRONOUS GENERATOR FOR AIRCRAFT APPLICATIONS

Rüştü Önder Kalaycioğlu; Engin Ayçiçek

Article Details

DESIGN OF SAFETY CRITICAL HIGH POWER DENSITY AND HIGH SPEED PERMANENT MAGNET SYNCHRONOUS GENERATOR FOR AIRCRAFT APPLICATIONS

Authors:

Rüştü Önder Kalaycioğlu | Engin Ayçiçek

Publisher:

Süleyman Demirel University

Main Topics:

Elektrik Makineleri ve Sürücüler

Journal:

Mühendislik Bilimleri ve Tasarım Dergisi Vol.13 Issue 3, pp.829-842

Document Type:

Article

Publication Date:

9/2025

Document Language:

English

Document ID (Org No.):

2001359332

pISSN:

1308-6693

Keywords:

Abstract:

 In this study, it was aimed to carry out design of safety critical high speed and high power density permanent magnet synchronous generator for aircraft applications. The aim is to design a generator with a power density of 4kWkg and a speed of 50000rpm that is resistant to short circuit current. The first design of the machine was made according to the dimensions calculated by analytical methods, then the design was analyzed with an electromagnetic analysis program and the design modification was carried out. While determining the requirements of the machine, some Turbojet engines used in the sector were examined and requirements were determined at speeds and powers close to these. The generator output is assumed to be passively rectified by passing through a full bridge diode structure and a DC voltage is obtained within the DC-DC converter voltage range specified in the requirements. In order to comply with aviation standards, it has been ensured that the machine is in a safety-critical structure in the design and material selection. After the initial design results were examined, design changes and weight reduction studies were carried out to increase the power density of the machine and reduce the short circuit current. The results of the new design and the initial design were comparatively examined and it was shown that the design criteria were met.

 In this study, it was aimed to carry out design of safety critical high speed and high power density permanent magnet synchronous generator for aircraft applications. The aim is to design a generator with a power density of 4kWkg and a speed of 50000rpm that is resistant to short circuit current. The first design of the machine was made according to the dimensions calculated by analytical methods, then the design was analyzed with an electromagnetic analysis program and the design modification was carried out. While determining the requirements of the machine, some Turbojet engines used in the sector were examined and requirements were determined at speeds and powers close to these. The generator output is assumed to be passively rectified by passing through a full bridge diode structure and a DC voltage is obtained within the DC-DC converter voltage range specified in the requirements. In order to comply with aviation standards, it has been ensured that the machine is in a safety-critical structure in the design and material selection. After the initial design results were examined, design changes and weight reduction studies were carried out to increase the power density of the machine and reduce the short circuit current. The results of the new design and the initial design were comparatively examined and it was shown that the design criteria were met.

 In this study, it was aimed to carry out design of safety critical high speed and high power density permanent magnet synchronous generator for aircraft applications. The aim is to design a generator with a power density of 4kWkg and a speed of 50000rpm that is resistant to short circuit current. The first design of the machine was made according to the dimensions calculated by analytical methods, then the design was analyzed with an electromagnetic analysis program and the design modification was carried out. While determining the requirements of the machine, some Turbojet engines used in the sector were examined and requirements were determined at speeds and powers close to these. The generator output is assumed to be passively rectified by passing through a full bridge diode structure and a DC voltage is obtained within the DC-DC converter voltage range specified in the requirements. In order to comply with aviation standards, it has been ensured that the machine is in a safety-critical structure in the design and material selection. After the initial design results were examined, design changes and weight reduction studies were carried out to increase the power density of the machine and reduce the short circuit current. The results of the new design and the initial design were comparatively examined and it was shown that the design criteria were met.

 Bu çalışmada havacılık uygulamaları için emniyet kritik yüksek hızlı ve yüksek güç yoğunluklu sürekli mıknatıslı senkron generatör tasarımı yapılması hedeflenmiştir. Amaç, 4kWkg güç yoğunluğunda ve 50000rpm hıza sahip, kısa devre akımına dayanıklı bir generatör tasarlamaktır. Makinanın ilk tasarımı analitik yöntemlerle hesaplanan boyutlara göre yapılmış, daha sonra tasarım elektromanyetik analiz programı ile analiz edilmiş ve tasarım modifikasyonları gerçekleştirilmiştir. Makinanın isterleri belirlenirken sektör de kullanılan bazı Turbojet motorlar incelenmiş ve bunlara yakın devir ve güçlerde isterler belirlenmiştir. Generator çıkışı bir tam köprü diyot yapısından geçerek pasif doğrultulacağı ve isterlerde belirtilen DC-DC dönüştürücü gerilim aralığında bir DC gerilim elde edileceği kabulüyle çalışılmıştır. Havacılık standartlarına uyum sağlayacak şekilde makinanın tasarım ve malzeme seçimi açısından makinanın emniyet kritik bir yapıda olduğundan emin olunmuştur. İlk tasarım sonuçları incelendikten sonra, makinanın güç yoğunluğu artırmak ve kısa devre akımını azaltmak için tasarımsal değişiklikler ve ağırlık azaltma çalışmaları yapılmıştır. Yeni tasarım ve ilk tasarımın sonuçları karşılaştırmalı olarak incelenmiş ve tasarım kriterlerine uyum sağlandığı gösterilmiştir.

Article Details

DESIGN OF SAFETY CRITICAL HIGH POWER DENSITY AND HIGH SPEED PERMANENT MAGNET SYNCHRONOUS GENERATOR FOR AIRCRAFT APPLICATIONS

Authors:

Rüştü Önder Kalaycioğlu | Engin Ayçiçek

Publisher:

Süleyman Demirel University

Main Topics:

Elektrik Makineleri ve Sürücüler

Journal:

Mühendislik Bilimleri ve Tasarım Dergisi Vol.13 Issue 3, pp.829-842

Document Type:

Article

Publication Date:

9/2025

Document Language:

English

Document ID (Org No.):

2001359332

pISSN:

1308-6693

Electrical Machines

Permanent Magnet Generator

Safety Critical

Aircraft GeneratorElektrik Makinaları

Sürekli Mıknatıslı Generator

Emniyet Kritik

Hava Aracı Generatörü

Issues

Article Details

Authors: Rüştü Önder Kalaycioğlu | Engin Ayçiçek

Publisher: Süleyman Demirel University

Main Topics: Elektrik Makineleri ve Sürücüler

Journal: Mühendislik Bilimleri ve Tasarım Dergisi Vol.13 Issue 3, pp.829-842

Document Type: Article

Publication Date: 9/2025

Document Language: English

Document ID (Org No.): 2001359332

pISSN: 1308-6693

Issues

Authors:

Rüştü Önder Kalaycioğlu | Engin Ayçiçek

Publisher:

Süleyman Demirel University

Main Topics:

Elektrik Makineleri ve Sürücüler

Journal:

Mühendislik Bilimleri ve Tasarım Dergisi Vol.13 Issue 3, pp.829-842

Document Type:

Article

Publication Date:

9/2025

Document Language:

English

Document ID (Org No.):

2001359332

pISSN:

1308-6693