Joint Power and Beam Angle Control for Energy Efficiency in Lighting Control Systems

Abstract

This paper considers an energy-efficient utilization in lighting control systems (LCS). A joint power and beam anglecontrol in LCS is proposed that reduces energy consumption while satisfying the user’s lighting requirements. Aproblem to find the optimal pair of power and the beam angle of luminaries is formulated and an algorithm to find theoptimal solution is suggested. The simulation results show that the proposed scheme achieves considerableimprovement in energy savings compared to conventional lighting energy saving scheme which does not consider thebeam angle control.