Magnetic suspension flywheel energy storage device using suspension/energy storage integrated flywheel

The invention relates to a magnetic suspension flywheel energy storage device with a suspension/energy storage integrated flywheel, which comprises a shell, a permanent magnet type radial magnetic suspension bearing A stator, a permanent magnet type radial magnetic suspension bearing B stator, an electromagnetic permanent-magnet hybrid type axial magnetic suspension bearing stator and a motor/generator stator, wherein the permanent magnet type radial magnetic suspension bearing A stator and the permanent magnet type radial magnetic suspension bearing B stator are respectively positioned on the bottom and top of the shell; the electromagnetic permanent-magnet hybrid type axial magnetic suspension bearing stator and the motor/generator stator are installed on the inner wall of the shell; the device also comprises a permanent magnet type radial magnetic suspension bearing B rotor, a motor/generator rotor, a suspension/energy storage integrated flywheel A, a suspension/energy storage integrated flywheel B and a permanent magnet type radial magnetic suspension bearing A rotor which are arranged on a main shaft from top to bottom; the suspension/energy storage integrated flywheel B is positioned between the permanent magnet type radial magnetic suspension bearing A stator and the electromagnetic permanent-magnet hybrid type axial magnetic suspension bearing stator; and the suspension/energy storage integrated flywheel A is arranged between the motor/generator stator and the electromagnetic permanent-magnet hybrid type axial magnetic suspension bearing stator. The invention has the advantages of compact structure, small size, light weight, high efficiency and high energy density.