Miniature pumped storage power station based on high-rise building group and use method thereof

The invention discloses a miniature pumped storage power station based on a high-rise building group. The system comprises a micro pumped storage power station and a photovoltaic power station. The micro pumped storage power station and the photovoltaic power station operate jointly; the photovoltaic power station is of a distributed structure and is arranged on the roof or the wall face of the building group. The micro-pumped storage power station comprises a reservoir and a micro-pumped storage unit; the micro pumped storage unit is respectively connected with the reservoir and the photovoltaic power station; the reservoir comprises an upper reservoir and a lower reservoir; the upper reservoir comprises a living water tank of a building water lifting system and a rainwater collecting system; the lower reservoir comprises a flat urban water supply reservoir or a water plant; the living water tank and the rainwater collecting system are arranged on a building roof; one end of the living water tank is connecte