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Disturbance Observer and Time-Delay Controller Design for Individual Blade Pitch Control System Driven by Electro-Mechanical Actuator

전기-기계식 구동기 기반 개별 블레이드 피치 조종 시스템의 제어를 위한 외란 관측기와 시간 지연제어기 설계

  • Jaewan Choi (School of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Minyu Kim (Department of Artificial Intelligence, Korea Aerospace University) ;
  • Younghoon Choi (Department of Smart Drone Engineering, Korea Aerospace University)
  • 최재완 (한국항공대학교 항공우주 및 기계공학부) ;
  • 김민유 (한국항공대학교 인공지능학과) ;
  • 최영훈 (한국항공대학교 스마트드론공학과)
  • Received : 2023.10.18
  • Accepted : 2023.12.28
  • Published : 2024.02.28

Abstract

Recently, the concept of Urban Air Mobility (UAM) has expanded to Advanced Air Mobility (AAM). A tilt rotor type of vertical take-off and landing aircraft has been actively studied and developed. A tilt-rotor aircraft can perform a transition flight between vertical and horizontal flights. A blade pitch angle control system can be used for flight stability during transition flight time. In addition, Individual Blade Control (IBC) can reduce noise and vibration generated in transition flight. This paper proposed Disturbance Observer Based Control (DOBC) and Time Delay Control (TDC) for individual blade control of an Electro-Mechanical Actuator (EMA) based blade pitch angle control system. To compare and analyze proposed controllers, numerical simulations were conducted with DOBC and TDC.

최근 도심항공모빌리티(Urban Air Moility, UAM)의 개념이 미래항공모빌리티(Advanced Air Mobility, AAM)으로 확장되면서 틸트로터형 수직 이착륙기에 관한 연구개발이 활발하다. 틸트로터의 경우 수직비행과 수평비행 사이에 천이비행을 하게 되는데 천이비행 구간의 비행 안정성을 확보하기 위해 블레이드 피치각 제어시스템을 활용할 수 있다. 또한 개별 블레이드 제어(Individual Blade Control, IBC)를 통하여 천이비행 구간 동안 발생하는 소음 및 진동을 감소시킬 수 있다. 본 논문에서는 전기-기계식 구동기 기반 블레이드 피치각 제어시스템의 개별 블레이드 제어를 위한 외란 관측기와 시간 지연제어기를 설계하고 수치 시뮬레이션을 통해 설계한 제어기들의 성능을 비교분석한다.

Keywords

Acknowledgement

본 논문은 2023년도 정부(산업통신자원부)의 재원으로 한국산업기술평가관리원의 지원(NO20015907, eVTOL 모빌리티용 고신뢰도, 고속, 고출력 다중화 전기 작동기 개발)과 정부(교육부)의 재원으로 한국연구재단의 지원(2023R1A6A1A03056784)을 받아 수행된 연구 결과임

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