Phase change energy storage composite heating system based on electric heat pump

The utility model discloses a phase change energy storage composite heating system based on an electric heat pump. The system comprises a low-temperature heat source, an electric heat pump, a phase change heat storage module II, heating equipment, a plurality of valves arranged on a pipeline and a circulating water pump, the low-temperature heat source is connected with a heat source water inlet-outlet of the electric heat pump; a hot water outlet of the electric heat pump is divided into two paths; one path is connected to a water inlet of heating equipment through a heat supply bypass pipeline; a water outlet of the heating equipment is connected to a hot water inlet of the electric heat pump through a water return pipeline; the other path is connected with an inlet of the phase change heat storage module II through a pipeline; an outlet of the phase change heat storage module II is connected with two branch pipelines in parallel; one branch pipeline is connected to a hot water inletof the electric heat pum