Solar photovoltaic/thermal integrated heat pump(PV/T-HP) is expected to realize comprehensive utilization of photovoltaics and thermal.To analyze the performance of PV/T-HP

mathematical models of PV/T evaporator

compressor

water tank and thermal expansion valve are established respectively and linked to form a complete thermodynamic cycle based on energy conservation

mass conservation equation.Simulation is carried out through MATLAB.The model accuracy is validated through direct expansion solar assisted heat pump(DX-SHAP) experiments.The result shows that the simulation error is about 5%

which is acceptable.Comparing the performance of PV/T-HP and DX-SHAP

with the rise in solar radiation intensity

COP both increases.With high solar radiation intensity

COP of PV/T-HP can be more than 5.The comprehensive COP of PV/T-HP is 7.4 on average

which is higher than that of DX-SHAP.The result shows that

PV/T-HP is conductive to reduce energy consumption of the system and improve the photoelectric conversion efficiency of photovoltaic modules

so it has more benefit on energy-saving.