Photoelectric and photo-thermal building integrated phase change temperature control system based on prefabricated composite wall

The invention relates to a photoelectric and photo-thermal building integrated phase change temperature control system based on a prefabricated composite wall body, which comprises a photovoltaic/thermal composite wall body integrated with a phase change material, an electric power collection system, a temperature control system and a ventilation system, the photovoltaic/thermal composite wall integrated with the phase-change material comprises a photovoltaic assembly, a phase-change material layer, a gas flow channel, a heat preservation layer and a phase-change wall body, a fluid temperature control channel is arranged in the phase-change material layer, and a temperature control system comprises a temperature control pipeline, a temperature measurement element, a flow measurement and control element, a heat exchange device, a power element and a fluid storage box. One end of a heat exchange device in the temperature control system is connected with one end of a fluid temperature control channel through a t