The invention relates to a
compound system of a photovoltaic
solar heat pump. The
system comprises a
solar heat pump circulation loop, a
solar power generation
branch, an assisting working medium
branch and a control device, wherein the
solar heat pump circulation loop is used for receiving
solar energy and converting the
solar energy to
heat energy so as to drive circulation working media and a buried
natural gas pipe to be subjected to heat exchange; the
solar power generation
branch is connected with the solar
heat pump circulation loop, and used for converting
solar energy into
electric energy and feeding the
electric energy back to the solar
heat pump circulation loop; the assisting working medium branch is connected with the solar
heat pump circulation loop and used for assisting the solar heat pump circulation loop in heat exchange at different temperatures in different seasons in different operating
modes; the control device comprises a temperature
detector, a controller and stop valves, and the stop valves are arranged on the solar heat pump circulation loop, the
solar power generation branch and the assisting working medium branch respectively; the controller is connected with the stop valves and the temperature
detector. Compared with the prior art, the
compound system of the photovoltaic solar heat pump has the advantages of preventing
frost heaving, being good in effect, good in economical efficiency, capable of saving energy,
environmentally friendly and high in power generation efficiency, relieving the heat island effect, being wide in application range and the like.