Choice of Pole Number of Two-Rotor Axial-Flux PM Motor for Control Moment Gyroscope

Date

2011-09-10

Author

Özlü Ertan, Hatice Gülçin

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

192
views

0
downloads

Modern low earth orbit satellites use control moment gyroscopes (CMG) for maneuvering. GMC's generally use a brushless DC motor to run an inertial wheel at about 10000 rpm. In this paper axial-flux BLDC motor is considered for this task with a view to design a low volume, low weight CMC. Various axial-flux (AF) motor topologies are possible. However, two-rotor AF topology is found to be more advantageous. The specifications of an existing CMG design, based on a commercial BLDC motor are taken as reference. The approach adopted for the design of the AF motor, to meet this specification is described, while minimizing the motor volume and maximizing the motor inertia. This approach is used for designing two axial flux motors one with 2-poles the other with 6-poles. The resulting CMG designs, based on AF motor are compared with the existing CMC. It is found that the new design promises to reduce the volume of the CMC by nearly 60%.

Subject Keywords

BLDC Motor, Axial flux motor, Control moment gyroscope, Design

URI

https://hdl.handle.net/11511/55108

Conference Name

International Aegean Conference on Electrical Machines and Power Electronics / Electromotion Joint Conference

Collections

Department of Basic English, Conference / Seminar

Suggestions

OpenMETU
Core

Comparison of Outer Rotor Radial Flux and Axial Flux PM Motors for CMG Application Ertan, Hulusi Bülent (2014-09-05) Control moment gyroscopes (CMG) are used in modern satellite applications for attitude control of satellites. The volume and mass of the instruments is very important in such applications. In this context, integrating the mass of the CMG, on the stator of the motor, promises to save space and mass. Radial-flux outer-rotor motor is a promising configuration in that respect. In this paper, using such a PM motor is considered for control moment gyroscope applications. The design of the motor must be made such ...
Design of a control moment gyroscope with outer rotor BLDC motor İnce, Berk; Ertan, Hulusi Bülent; Department of Electrical and Electronics Engineering (2019) The aim of this thesis is to design a control moment gyroscope (CMG) with outer rotor BLDC motor for medium size satellites. CMG is a device that provides high output torque to the satellite in order to maneuvering satellites rapidly. CMG is the most efficient actuator in terms of output torque capacity when it is compared with other type actuators such as the reaction wheel. The first step of the designing CMG is to determine CMG design specifications. The mass and volume specifications of the designed CMG...
Evaluation of a 6 pole axial flux PM motor for Control Moment Gyroscope Application Zeinali, Raza; Ertan, Hulusi Bülent (2015-09-04) In a previous study a compact Control Moment Gyroscope (GMC) design, based on a 6-pole, axial flux (AF) motor was presented. The GMC design in that proposal was based on analytical expressions and naturally 3-D structure of the AF motor could not be fully taken into account. In this paper the designed motor is simulated using 3-D FEM solutions. The parameters of the design such as electric loading and current loading as well as the performance of the design such as phase current and the torque produced at 1...
Orbit Control of an Earth Orbiting Solar Sail Satellite Polat, Halis Can; Tekinalp, Ozan (2022-09-01) A concept for the utilization of solar sail satellite's propellant-free thrust capability at Low earth orbit (LEO) is proposed and its orbit control strategy is analyzed. Thrust vector control of the sail's normal direction is used to harvest the solar radiation pressure for generating the necessary acceleration to change the orbital elements. The required control vector direction is determined with two approaches. The first approach is realized by approximating the Gaussian Variational Equations at the emp...
SATELLITE ATTITUDE CONTROL USING DISSIMILAR REDUNDANT ACTUATORS Kahraman, Ozgur; Tekinalp, Ozan (2009-02-12) Low Earth orbit satellites are usually equipped with magnetic torquers for momentum dumping and reaction wheels to carry out three axis attitude stabilization and control. These two different types of actuators mixed and used together to carry out slew maneuvers. The problem of allocating the control to these different types of actuators is realized using a recently developed algorithm called blended inverse. The algorithm is compared with the Moore-Penrose pseudo inverse demonstrating its success in realiz...

Citation Formats

H. G. Özlü Ertan, “Choice of Pole Number of Two-Rotor Axial-Flux PM Motor for Control Moment Gyroscope,” presented at the International Aegean Conference on Electrical Machines and Power Electronics / Electromotion Joint Conference, Istanbul, TURKEY, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/55108.