Journal of Advanced Navigation Technology (한국항행학회논문지)

The Korean Navigation Institute (한국항행학회)
권호 표지
DOI QR코드

DOI QR Code

Development and Performance Test of a Spherical Reaction Wheel Actuator with Magnetic Levitation

자기부상을 적용한 구체 반작용휠 구동기 개발 및 성능 시험

  • Kim, Dae-Kwan (Korea Aerospace Research Institute, Satellite Control System Department.) ;
  • Yoon, Hyung-Joo (Korea Aerospace Research Institute, Satellite Control System Department.) ;
  • Kim, Yong-Bok (Korea Aerospace Research Institute, Satellite Control System Department.) ;
  • Kang, Woo-Yong (Korea Aerospace Research Institute, Satellite Control System Department.) ;
  • Choi, Hong-Taek (Korea Aerospace Research Institute, Satellite Control System Department.)
  • 김대관 (한국항공우주연구원 위성제어팀) ;
  • 윤형주 (한국항공우주연구원 위성제어팀) ;
  • 김용복 (한국항공우주연구원 위성제어팀) ;
  • 강우용 (한국항공우주연구원 위성제어팀) ;
  • 최홍택 (한국항공우주연구원 위성제어팀)
  • Received : 2012.09.24
  • Accepted : 2012.10.30
  • Published : 2012.10.30
Download PDF
⟨ Previous Next ⟩

Abstract

In the present study, a feasibility study on an innovative satellite attitude control actuator is performed. The actuator is specially designed to generate the reaction torque in an arbitrary axis, so that a satellite attitude can be controlled by using itself. It consists of a spherical flywheel and electromagnets for levitation and rotation control of the ball. As the earlier study, a rotating performance test on the spherical actuator is conducted in a single rotating axis and vertical levitation condition. From the test results, it can be confirmed that the maximum speed and torque of the innovative device are 7,200rpm and 0.7Nm, respectively. Using a velocity-voltage characteristic curve of the spherical motor, an open-loop control (V/f constant control) is performed, and the test results show excellent control performance in acceleration and deceleration phases.

새로운 개념의 인공위성 자세제어 작동기에 대한 타당성 연구를 수행하였다. 구체구동기는 단일장치로써 위성의 3축 자세제어가 가능한 구동기이며, 구체 플라이휠과 자기부상 및 회전구동을 위한 전자석으로 구성된다. 구체구동기에 대한 수학적 모델링 및 설계를 통하여 시제품을 제작하였으며, 자기부상이 적용된 조건에서 1축에 대한 구동성능 시험을 수행하였다. 구동성능은 최대속도 7,200rpm 그리고 최대토크 0.7Nm로 측정되었으며, 속도-토크 특성곡선을 이용한 개루프 속도제어를 통하여 우수한 가속 및 감속 속도제어 결과를 확인하였다. 본 구체구동기는 속도 및 토크 제어를 위한 추가적인 연구를 통하여 성능이 개선될 예정이다.

Keywords

References

  1. 김대관, 오시환, 이선호, 용기력, "반작용휠의 미소 진동 측정법에 관한 실험적 연구," 한국소음진동 공학회논문집, 제 21권, 제 9호, pp. 828-833, 2011.
  2. Iwakura, A., Tsuda S. and Tsuda T, "Feasibility Study on Three Dimensional Reaction Wheel," Proceedings of the School of Science of Tokai University, Series E, Vol.33, pp.51-57, 2008.
  3. Boletis, A., Sache, L., Menot, S. and Bleuler, H., "Magnetic Levitation and Rotation of Sub-millimetric Spherical Rotors," International Conference on Magnetically Levitated Systems and Linear Drives (MAGLEV2002), Lausanne, Switzerland.2002.
  4. Wildmann, C., Nussbaumer, T. and Kolar, J. W., "10 Mrpm Spinning Ball Motor - Preparing the next generation of ultra-high speed drive systems," International Power Electronics Conference, 2010.
  5. Dehez, B., Galary, G., Grenier, D. and Raucent, B., "Development of a Spherical Induction Motor With Two Degrees of Freedom," IEEE TRANSACTIONS ON MAGNETICS, VOL.42, NO.8, pp.2077-2089, 2006. https://doi.org/10.1109/TMAG.2006.876473
  6. Park, G., Yoon, H., Kim, D. K., Yong, K. L. and Sergei, E., "Feasibility Study and System Conceptual Design for the Spherical Actuator," 11th International Conference on Control, Automation and Systems, Oct. 26-29, KINTEX, Korea, pp. 1875-1879, 2011.
  7. 이주, "전기기기", 홍릉과학출판사, 2011.