Gazalov V., Shabaev E., Romanovets M. Simulation of the illumination automatic control system of the dynamic lighting on RGB-leds . Electronic science-productive magazine "AgroEcoInfo", 2019, N 2

2019, N 2 (36)

ELECTROTECHNOLOGY AND ELECTRIC EQUIPMENT IN AGRICULTURE

*Gazalov V., Shabaev E., Romanovets M.*
Simulation of the illumination automatic control system of the dynamic lighting on RGB-LEDs
LED lighting is widely used in production, agriculture and everyday life. Simple control of the flow of light-emitting diodes opens wide opportunities for the creation of «smart» lighting control systems, in which special attention is paid to the control of the parameters of the light environment in order to improve the energy and biological efficiency of the use of artificial light sources. A promising direction in this area is the creation of dynamic lighting systems with variable color and optical radiation levels during the day, which can have a significant impact on the circadian rhythms of animals and humans. A separate task of the lighting control system in the room is to maintain a given level of illumination. The development of an automatic control system (ACS) of illumination requires determining the type of control law and the optimal settings of the controller. The analysis and synthesis of the considered ACS was carried out with the help of a modern research method based on computer modeling. Experimentally, the parameters of transfer functions of individual elements of ACS were obtained on the test setup. The developed model of illumination ATS takes into account the limitations of the signal levels of real technical means of automation and time sampling by digital devices (programmable relay PR200, analog output module MU110 and LED dimmer). The parameters of the PI-regulator (kP=0.12 and TI=0.08 s) are substantiated by computer simulation of the illumination ACS in the SimInTech program environment. To confirm the adequacy and accuracy of the transfer functions of individual elements of the ACS and the system as a whole, studies were conducted on an test setup. Experimental data of the real test and simulation results have a coincidence of more than 99%. The developed computer model of illumination ACS in SimInTech environment allows to study the system for different modes of operation taking into account the influence of external perturbation. Keywords: LIGHTING OF PREMISES, LED LIGHTING, AUTOMATIC CONTROL SYSTEM OF ILLUMINATION, TRANSFER FUNCTION, MODELING, SIMINTECH, PID CONTROLLER, DETERMINATION OF THE CONTROLLER SETTINGS, STUDY OF ACS, QUALITY OF REGULATION