한국태양에너지학회:학술대회논문집

The Korean Solar Energy Society (한국태양에너지학회)
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The Development of the Solar Tracking System with High Accuracy by using LabVIEW

LabVIEW를 활용한 고정밀도 태양추적장치 개발

  • Oh, Seung-Jin (Dept. of Nuclear&Energy Engineering, Graduate School, Jeju National University) ;
  • Cho, Yil-Sik (Korea Institute of Energy Research (KIER)) ;
  • Lee, Yoon-Joon (Dept. of Nuclear&Energy Engineering, Jeju National University) ;
  • Chun, Won-Gee (Dept. of Nuclear&Energy Engineering, Jeju National University)
  • 오승진 (제주대학교 대학원 에너지공학과) ;
  • 조일식 (한국에너지기술연구원) ;
  • 이윤준 (제주대학교 에너지공학과) ;
  • 천원기 (제주대학교 에너지공학과)
  • Published : 2009.04.10
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Abstract

There have been many solar tracking systems developed for the high accuracy in solar tracking. One of the key components of any motion control system is software. LabVIEW offers an ideal combination of flexibility, ease-of-use and well-integration with other I/O pieces for developing solar tracking system. Real-time solar positions which vary with GPS's data are used simultaneously to control the solar tracker by a chain of operating modes between the open and closed loops. This paper introduces a step by step procedure for the fabrication and performance assessment of a precision solar tracking system. The system developed in this study consists of motion controllers, motor drives, step-motors, feedback devices and application. CRD sensors are applied for the solar tracking system which play a primary role in poor conditions for tracking due to a gear backlash and a strong wind. Mini-dish was used as a concentrator for collecting sun light. The solar position data, in terms of azimuth and elevation, sunrise and sunset times was compared with those of KASI(Korea Astronomy & Space Science Institute). The results presented in this paper demonstrate the accuracy of the present system in solar tracking and utilization.

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