The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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Design and Verification of Disturbace Observer based Controller for Windturbine with Two Cooperative Generators

두 대의 협력적인 발전기를 갖는 풍력발전기의 외란관측기 기반 제어기의 설계 및 검증

  • 이국선 (광운대학교 로봇학부) ;
  • 조황 (광운대학교 로봇학부) ;
  • 백주훈 (광운대학교 로봇학부) ;
  • 최익 (광운대학교 로봇학부)
  • Received : 2016.12.22
  • Accepted : 2017.04.24
  • Published : 2017.04.30
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Abstract

This paper proposes a disturbance observer based controller design method for generating and yawing control of windturbine with two cooperative generators. Windturbine system with two cooperative generators is a distinct structure in which the wind energy supplied by blade axis is converted into electrical energy by two cooperative generators. In this structure, two generators can be controlled independently and therefore they can generate power, simultaneously performing yawing control of nacelle without extra yawing mechanism by cooperatively controlling generating load in appropriate manner. Using this structural trait, this paper designs a disturbance observer based controller that enables the windturbine system with cooperative generators to generate and yaw stably, and verifies the performance of the controller experimentally by applying it to a small-scale windturbine system with the same structure.

본 논문은 외란관측기 개념을 이용하여 두 대의 협력적인 발전기를 갖는 풍력발전기의 발전 및 요잉 제어기 설계 방법을 제안한다. 협력형 풍력발전기란 날개축으로부터 공급된 풍력 에너지를 두 대의 발전기를 통하여 협력적으로 전기 에너지로 변환하는 차별화된 구조의 풍력발전기를 의미한다. 이 구조에서 두 대의 발전기는 독립적으로 제어가 가능하기 때문에 두 발전기의 발전부하를 적절하게 협력적으로 제어함으로써 발전과 동시에 추가적인 요잉 메커니즘 없이 넛셀의 요잉제어가 가능하다. 이러한 구조적 특징을 이용하여 본 논문에서는 협력형 풍력발전기의 발전 및 요잉제어가 안정적으로 실행될 수 있도록 외란관측기를 기반으로 하는 제어기를 설계하고 이를 소형발전기 시스템에 적용하여 그 성능을 실험적으로 검증하였다.

Keywords

References

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