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Joint blind and light control for lighting energy reduction while satisfying light level and anti-glare requirements

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Lighting Research & Technology

Published online on

Abstract

This paper presents a joint blind and light control scheme for lighting energy optimization in a lighting control system. The proposed scheme utilizes the maximum available daylight without any glare and reduces lighting energy consumption while satisfying the user’s light level requirements. The optimal blind tilt angle that transmits the maximum available daylight without any glare is computed based on the sun’s altitude and the windows orientation, and an optimization problem is formulated that minimizes the required artificial lighting energy to satisfy the user’s lighting requirements. The simulation results show that, relative to conventional lighting control schemes, the proposed scheme achieves improvements in lighting energy consumption while satisfying the anti-glare and user’s light level requirements.