智能照明系統(tǒng)粒子群優(yōu)化的PID控制方法研究
[Abstract]:With the increasing number of high-rise buildings (such as high-grade hotels, high-rise residential buildings, high-grade office buildings, etc.) in recent years, the traditional building lighting system consumes a lot of energy. Moreover, the illumination of lamps and curtains can not be adjusted in real time according to the change of indoor real time illumination, and the control mode is single and the system lags behind seriously, so it can not meet the increasing lighting environment. Lighting atmosphere, lighting use of different needs. In the field of intelligent building, the energy consumption of lighting system is always an important part of building energy consumption. According to scientific research, the energy consumption of lighting part of the building energy consumption in our country accounts for more than 27% of the total building energy consumption. In the era of gradual depletion of energy in the world, energy-saving problems of buildings become more prominent. In order to solve the problem of energy consumption of the system, the natural light source is introduced into indoor lighting, and the energy saving is achieved by mixing it with artificial light source. In order to meet the requirements of different room contrast degree and self-adjustment of the system, this paper adopts PID controller to control the illumination system and the occlusion system, and adjusts the proportion, integral and differential variables in the PID control. Can more accurate contrast to grade, so as to meet different needs. Because the selection of traditional PID control parameters is an important index to decide whether the system is good or not, the particle swarm optimization algorithm is introduced in this paper, with the help of the characteristics of particle swarm optimization. The illumination control system can fulfill the preset control requirements more quickly, and through the analysis of particle swarm optimization, particle swarm optimization algorithm can make the system run faster, more reliable and more energy saving. The specific work of this paper is as follows: (1) the natural light and artificial light sources are effectively used for mixed lighting. According to the current illumination and the degree of human eye comfort, the shading angle and elevating height of indoor blinds can be adjusted actively. (2) the optimal control of the luminance combination of indoor lamps and lanterns is carried out. Light sensor is used to collect the illuminance value of observation point and adjust the luminaire with PID control. (3) in order to optimize the parameters of PID control, the particle swarm optimization algorithm is introduced. Furthermore, by optimizing the selection of initial population and the process of optimization, the situation of local optimum is avoided. (4) the reliable operation of the system is verified by computer simulation combined with the above research content design system. Through the comprehensive analysis of the results, the future research direction is clarified. With the increasing depletion of non-renewable resources in the world and the increasing energy tension, the problems in our energy industry are becoming more and more obvious. Therefore, in order to cope with the challenge of limited resources in the future, it is also for the benefit of future generations. In the field of building lighting, intelligent automatic regulation lighting system with more energy saving potential will become the focus of future development, which is the theoretical significance and practical value of this paper.
【學(xué)位授予單位】:沈陽(yáng)建筑大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2015
【分類號(hào)】:TU113.66;TP18
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