Office Lighting Control Strategy And Energy Analysis Based On The Daylighting

Though daylighting has been neglected all the time in interior lighting, traditional lighting control method is still used in most buildings. In addition, with the constant improvement of people's living, the pressure of the supply of electric power of our country is becoming more and more serious, among which the lighting power consumption reaches 20% of the social total power consumption. Based on the analysis of daylighting characteristic, the control strategy of "introducing" the daylighting with electromotive and studying the Permanent Supplementary Artificial Lighting is proposed, which will help to get the healthy, energy-conserving and flexible working lighting luminous environment. Then the determinations of the characteristics of daylighting, the indoor daylight illuminance, the grilles angle of Venetian blinds, the formulation of artificial lighting strategy Combined with the daylighting and the saving-energy analysis become the main concerns of this thesis. Concrete content is as follows:1. The characteristics of daylighting effect and daylighting of factors have been analyzed.2. The general rule of building sunshine has been researched. According to the characteristics of daylighting, the illuminance of the daylighting in the interior of one point on the working face is divided into Skylight and direct sunlight, and the two parts were analyzed and calculated.3. On the basis of the research in the front and using DIALux software, A comprehensive office building which is located in Xi'an is used as a prototype in the thesis.Daylighting office simulation model has been builded. In different modes of the sky, The thesis choses eight typical days of one year and the illuminance of the daylighting in the interior of the points on the working face are calculated and quantitative analysis. The Experimental data which is contrasted with the simulation data, that the simulation data was reliable.4. The grilles angle of Venetian blinds is determined by fuzzy inference system. The simulation of the system has used Simulink. The indoor manual lighting is combined with the daylighting. Manual lighting is started and adjusted when the daylighting couldn't meet the light environment requirement.5. Finally, Manual lighting is designed take no account of daylighting. Then the energy analysis is executed. The thesis calculates the energy use under different control strategies, including not implementing control, ON/OFF switch control, and dimming control. Through comparison manifested:both ON/OFF switch control and dimming control can bring About great energy savings;compared with ON/OFF switch control, dimming control can save more energy.