Title of article :
Intelligent and Optimal Control of Air Conditioning Systems by Achieving Comfort and Minimize Energy
Author/Authors :
Daneshvar, Yazdan Department of civil engineering -Islamic Azad University Qazvin branch, Qazvin , Sabzehparvar, Majid Department of industrial engineering - collage of engineering - Islamic Azad University karaj branch, Karaj , Hashemi, Amir Hosein Department of civil engineering -Islamic Azad University Qazvin branch, Qazvin
Abstract :
In this study, artificial neural networks, artificial neural network combination with
genetic algorithm and neural network combination with Kalman filter were used to optimally
model and control a real air conditioning system. Using the above methods, the system is first
trained and after verifying the modeling accuracy, the capability of this modeling to predict the
future conditions of the system is investigated. In addition to the subsystems investigated in both
heating and cooling phases by mass and energy equations in Simulink simulated by Matlab
software, the results of this section are finally compared with the optimal modeling results. The
most important advantage of artificial neural network modeling over mass and energy equation
modeling approaches is that it captures all the uncertainties and nonlinear properties of the air
conditioning system due to the use of real data for modeling. It takes. Therefore, this method can
optimize energy consumption in air conditioners by predicting the future conditions of the system
and by precisely adjusting the time of turning on and off the main energy consuming equipment.
The most important achievement of this research is more accurate and realistic modeling of the
nonlinear air conditioning system.Comparing the methods used in the research for simulation
methods using mass and energy equations, modeling using Bayesian trained neural network,
artificial neural network modeling using MLP, modeling using neural network and genetic
algorithm, modeling Using neural network and Kalman filter, the square error is equal to 0.006,
0.18, 0.056, 0.1456 and more than 0.5, respectively.
Keywords :
HVAC control systems , artificial intelligence , Extended Kalman-filter , Genetic algorithm , artificial neural networks
Journal title :
Journal of Applied Dynamic Systems and Control