Simulation Madeling And Operation Strategy Optimization Of Photovoltaic And Photothermal Integrated Heat Pump System

Solar energy has the advantages of sustainability,cleanness and inexhaustibility,and has become the focus of new energy.Photovoltaic and photothermal comprehensive utilization system integrates power generation and heat collection,improves the utilization rate of solar energy,and makes it possible for it to enter ordinary people's homes.This paper studies a flat-plate water-cooled photovoltaic and photothermal integrated heat pump system,the purpose of which is to use solar energy and electric energy to heat domestic water to a set temperature value.First of all,this paper has built a photovoltaic and photothermal integrated heat pump experimental platform.This platform mainly uses photovoltaic modules to convert solar energy into electrical energy and heat energy,and has built a supporting campus meteorological platform to collect relevant meteorological data.In addition,this system is equipped with a number of temperature sensors,pressure sensors and other sensing devices,which are combined with the data monitoring system programmed by the upper computer using labview software to comprehensively collect and process system data.Secondly,this paper aims at the main hardware of the system,builds relevant mathematical models,analyzes its operation principle and characteristics,and uses Matlab software as a simulation platform to simulate the system.Relevant system efficiency evaluation standards are cited to evaluate the system operation efficiency.Then,the experimental data are substituted and compared with the simulation results to verify the accuracy of the model and the reliability of the analysis results,and the system characteristics are briefly analyzed.This is the theoretical basis and verification method for the optimization strategy of photovoltaic and photothermal system.Finally,according to the simulation results and mathematical model analysis,in order to achieve the purpose of improving the overall comprehensive efficiency,this experiment adopts a combination of photovoltaic and thermal system operation strategy and intelligent optimization algorithm to optimize.In order to verify the feasibility and effectiveness of the strategy optimization,an experiment was carried out in comparison with the normal operation control group without strategy.