Automatic Control Method of Green Building Indoor Lighting Based on Fuzzy Self-Tuning PID
The existing control methods have poor energy-saving effect,and the dimming level is higher than the fixed value.In order to solve this problem,an automatic control method of green building indoor lighting based on fuzzy self-tuning PID is proposed.Firstly,the mathematical model of automatic control of color temperature and light intensity is established,and the parameters of the model are adjusted and optimized.Then the fuzzy self-tuning PID controller is used to control the nonlinear system,and the fuzzy self-tuning PID rules are formulated.Finally,the output parameter setting is adjusted reasonably according to the color temperature deviation,and the fuzzy self-tuning PID controller is effectively designed.According to the error between the set value and the actual value of the light intensity,the PID controller is used to dynamically adjust the indoor light intensity,so as to complete the automatic control.The results show that after the application of the proposed method,the dimming levels are between 24%and 35%,and the level values are lower than the fixed mode,achieving good control effect and ideal energy saving results.
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