Simulation Model Of Air Conditioning Based On Thermodynamics

With the continuous development of air conditioning technology,modern air conditioning can fully meet the needs of consumers for performance.Therefore,consumer demand began to gradually focus on the comfort of air conditioning,energy consumption and other aspects.And these aspects of the improvement,mainly depends on the continuous progress of air conditioning control algorithm.A good control algorithm can reduce energy consumption while improving the comfort level,thus giving birth to more competitive products.For fixed-frequency air conditioning,its control logic is very simple.When monitoring the ambient temperature is higher than the target temperature,the compressor starts to run at fixed frequency until the ambient temperature is lower than the target temperature,the compressor stops and enters the next cycle.Such control logic can indeed achieve the effect of temperature control,but the room temperature fluctuates greatly,and the user experience is relatively poor.In addition,due to the large temperature difference between the cold end and the hot end of its operating environment,its operating efficiency is low,and the pressure difference in the high and low pressure areas needs to be re-established every restart,resulting in a large amount of electric energy loss.The variable frequency air conditioner with more complex control algorithm can greatly reduce the room temperature fluctuation interval,so that the air conditioner works in the condition of small temperature difference,and further improve its work efficiency and energy efficiency ratio.It can be seen that the control algorithm of air conditioning is decisive to the operation effect of the whole air conditioning.At present,the mainstream air conditioning control algorithms are based on a large number of logical judgment to obtain the control logic under different operating environments,which requires a lot of experimental data to improve and modify the algorithm logic.In traditional air conditioning testing methods,there are some problems such as long test cycle,difficult replacement of air conditioning components and difficult testing under extreme conditions.It takes a long time for the room temperature to change until it becomes stable,and after the test,it is necessary to wait for the room temperature to return to the initial temperature before the next test.This greatly lengthens the development cycle and testing cycle of the control algorithm.In addition,when air conditioning components are replaced or changed,it is often necessary to adjust the whole air conditioning system,which is also extremely inconvenient for research and development personnel.In order to address the above research and development issues,this article constructs an air conditioning simulation model,aiming to replace real machine testing to a certain extent and reduce testing costs.The innovation of the model lies in its design based on the laws of thermodynamics,which have strong universality and universality.Thus,it has strong auxiliary functions for the development of air conditioning control algorithms.This model can currently achieve approximate simulation of the operating effect of real air conditioning,and has been verified through relevant experiments.