한국항공우주학회지 (Journal of the Korean Society for Aeronautical & Space Sciences)

  • 제49권8호
  • /
  • Pages.627-636
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  • 2021
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  • 1225-1348(pISSN)
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  • 2287-6871(eISSN)
한국항공우주학회 (The Korean Society for Aeronautical and Space Sciences)
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시간지연기법을 적용한 재사용발사체 유도제어 시뮬레이션

Simulation of Time-Delay Based Path-Tracking Control of Reusable Launch Vehicle

  • Cho, Woosung (School of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Lee, HyeongJin (School of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Lee, Yeol (School of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Ko, Sangho (School of Aerospace and Mechanical Engineering, Korea Aerospace University)
  • 투고 : 2021.02.08
  • 심사 : 2021.06.17
  • 발행 : 2021.08.01
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초록

본 논문에서는 재사용발사체 유도제어에 관한 연구를 다루었다. 이를 위하여 6자유도의 재사용발사체 운동방정식 모델링을 수행하였으며, 이를 이용하여 최적 재진입경로를 생성 및 해당 경로를 추종하는 유도제어 시뮬레이션을 수행하였다. 유도제어기 설계를 위하여 모델링 불확실성, 외란 및 고장에 강한 시간지연기법을 적용한 자세제어기와 비선형 유도법칙을 이용하였다. 고전적인 PD 제어기를 적용한 유도제어 시뮬레이션을 수행하여 시간지연기법을 적용한 재사용발사체의 유도제어 시뮬레이션과 비교 검증하였다.

This paper deals with a study for the guidance control of reusable launch vehicle. For this purpose, modeling of the equation of motion of a reusable launch vehicle with 6 degrees of freedom was performed. With this model, an optimal re-entry path was created and a path-following guidance control simulation was performed to follow the optimal re-entry path. For the design of the path-following guidance controller, the attitude controller applying a time-delay technique that is resistant to modeling uncertainty, disturbance and failure. And the nonlinear path-following guidance law were used. Guidance control simulation using a classical PD controller was performed and compared with the guidance control simulation of a reusable launch vehicle applying a time delay technique.

키워드

과제정보

이 논문은 2018년도 한국항공대학교 교비지원 연구비에 의하여 지원된 연구의 결과임.

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