Control Strategy for Coupled Heating System of Photovoltaic/Thermal and Air Source Heat Pump
Taking a container house in the Yan-qing competition area of the 2022 Beijing Winter Olym-pics as the research object,a mathematical modeling of a wall panel radiation heating system combining photo-voltaic/thermal and air source heat pump was carried out using the Simulink model.The heat collection cy-cle control strategy and heat source switching control strategy were designed,and an optimized heat source switching control strategy was proposed for simulation analysis.The mathematical model was experimentally validated and proved to be accurate.For the heat col-lection cycle control strategy,there is not much differ-ence between the irradiance control strategy and the cy-cle temperature difference control strategy in terms of water tank temperature.The irradiance control will not cause frequent start and stop of the heat collection cy-cle water pump,and the economy is better.For the heat source switching control strategy,the fixed-time control strategy has lower power consumption and smal-ler temperature fluctuations in the water tank,but the fixed water tank temperature control strategy has a higher water tank temperature.Both strategies have their own advantages and disadvantages,and it is be-lieved that the fixed water tank temperature control strategy with higher water tank temperature has a slight advantage.By combining fixed-time control with fixed water tank temperature control,the optimized heat source switching control strategy reduces power con-sumption by 17.9％compared to using only air source heat pump.The power consumption is also slightly lower than that of fixed time control and fixed water tank temperature control,and the water tank tempera-ture is not too low,which can reduce power consump-tion on the basis of continuous operation.
万方数据
维普
