Design Of Control System In Ground Source Heat Pump Central Air-Conditioner Applied To Smart Home

As energy and environmental issues become increasingly prominent today, people shift the focus on the development and utilization of new energy.with geothermal energy as the heat source, ground source heat pump air conditioning system eliminating the need for a cooling tower and boiler room equipment, has great advantages in environmental protection, energy saving.As a result,this system has attracted more and more people’s attention.On the other hand, with the rapid development of communications technology, network control technology and the intelligent, well-off of people’s living standards,people’s concept of family life is changing and tends to be more and more modern.At the same time,smart home systems have emerged.In this paper, the research is based on the above objectives, aims to provide people with a safe, comfortable home environment.The ground source heat pump system is embedded into the smart home system significantly reducing energy consumption which efficiently co-ordinates arrangements for home systems.This paper first introduces the research status of ground source heat pump system and smart home system and points out the necessity of the use of clean energy.In the second section,the paper describes the basic structure and working principle of ground source heat pump air conditioning system.Combined with air-conditioning design principles and the need of people’s different hot and cold sensation, the indoor side and the refrigeration unit side-step control strategy is put forward in this article.There are limitations of the traditional PID controller for air-conditioning temperature control system,which has characteristic of large lagging, large inertia.To solve this problem,this paper designs a fuzzy PID controller which proves to be superior and more reliable than traditional PID controller through simulation experiment on matlab.Finally, this paper describes the implementation of the air conditioning system in the smart home.This paper designs radio frequency decoding and conversion module, which makes a communication between the host controller and the smart home air conditioning panel.The whole system shows a good performance though mutual cooperation of each communication model.