Design of an outer-rotor brushless DC motor for control moment gyroscope applications

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Tezin Türü: Yüksek Lisans

Tezin Yürütüldüğü Kurum: Orta Doğu Teknik Üniversitesi, Fen Bilimleri Enstitüsü, Fen Bilimleri Enstitüsü, Türkiye

Tezin Onay Tarihi: 2015

Öğrenci: NECATİ ÇAĞAN

Danışman: HULUSİ BÜLENT ERTAN

Özet:

Attitude control plays an important role in low-earth orbit (LEO) satellites. Agility of such systems are quite crucial and degree of agility can be determined by the help of the maneuver capability of actuators. Typical actuating systems in a low-earth orbit satellite are Control Moment Gyroscopes (CMG), and the electric motor type used in such systems is the brushless DC motor. In this study, an outer-rotor design of permanent magnet brushless DC motor to be used in a satellite application is investigated and, the main characteristics and performance parameters such as torque per unit weight, torque per unit volume, inertia contribution and power efficiency are discussed. This design is compared with various designs in a finite-element analysis environment. In conclusion, the overall performance of the motor is handled and distinct design advantages are stated.