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An Experimental Study on Control Strategy of LED System Using Daylight  

Yun, Gyeong (고려대학교 건축학과)
Yoon, Kap-Chun (고려대학교 건축학과)
Kim, Kang-Soo (고려대학교 건축학과)
Publication Information
KIEAE Journal / v.10, no.6, 2010 , pp. 33-39 More about this Journal
Abstract
Visual Environment and productivity are correlated. So we need to create a comfortable visual environment and maintain proper workplane illumination level. We can obtain lighting energy savings and comfortable visual environment using daylight and LED lights. In this study, we characterized the indoor illuminance level according to the sky condition and proposed dimming control strategy of LED lights. Energy savings in On/Off control mode are 40% at clear sky and 28% at intermediate sky. In dimming control mode, energy savings are 77.2% at clear sky and 64.1% at intermediate sky. Then we obtain the appropriate dimming control strategy of LED lights based on data. Dimming rates are 0-14.2-80(min-avg-max, %) for LED 1, 0-19.9-60% for LED 2 and 30-61.4-90% for LED 3. Lighting energy savings are 68.2% for LED dimming system applied this control method.
Keywords
Daylighting; LED lights; Dimming control; Office building; Lighting energy saving;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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