Natural gas differential pressure and wind-light-gas complementary multi-energy coupling hydrogen production and mixed hydrogen utilization device

The invention discloses a natural gas differential pressure and wind-light-gas complementary multi-energy coupling hydrogen production and hydrogen mixing utilization device which comprises a photovoltaic power generation system, a wind power generation system, an air source heat pump system, an expansion machine power generation system, a hydrogen production system, a hydrogen mixing system and an energy storage device. The photovoltaic power generation system and the wind power generation system are electrically connected with the air source heat pump system through the energy storage device; the photovoltaic power generation system, the wind power generation system and the expansion machine power generation system are electrically connected with the hydrogen production system through the energy storage device, the hydrogen production system is connected with the hydrogen mixing system through a pipeline, and the problems of power access and sending out, isolated network operation and non-grid-connected ope