53results about How to "Small disturbance torque" patented technology

The invention discloses a vehicle-mounted magnetic suspension flywheel energy storage system with a torsional gyroscopic effect suppression. The system comprises a five-degree-of-freedom magnetic bearing, a flywheel rotor and an outer rotor motor which are coaxially arranged, wherein the middle section of the flywheel rotor is a flywheel rotor main cylinder, the lower section is a lower end circular ring, the external part of the upper section of the flywheel rotor is an upper end circular ring, the middle of the upper section is an inner receiving pole, the lower section is a lower end circular ring, the inner receiving pole is of a hemispherical structure, the inner diameter of the upper end circular ring is greater than the inner diameter of the lower end circular ring, the diameter ofthe inner receiving pole is less than the inner diameter of the lower end circular ring, a circular ring-like groove is formed among the flywheel rotor main cylinder, the inner receiving pole and theupper end circular ring, the five-degree-of-freedom magnetic bearing is arranged in the circular ring-like groove, a cylindrical groove is formed between the flywheel main cylinder and the lower end circular ring, and the outer rotor motor is arranged in the cylindrical groove. The system is supported by adopting the unilateral highly integrated five-degree-of-freedom magnetic bearing, which reduces the axial size and suppresses the torsional gyroscopic effect.

The invention discloses a three-degree-of-freedom spherical hybrid magnetic bearing with an axial self-loop. An outer axial stator, an upper annular permanent magnet, a radial stator, a lower annularpermanent magnet and a lower axial stator sequentially coaxially sleeve a rotator from top to bottom, each of the upper axial stator and the lower axial stator is formed by axially connecting an upperdisc, a middle disc and a receiving disc, the inner end surface of every upper disc extend radially inwards extends to form a conical disc, small discs are arranged between the upper and lower end surfaces of the rotor and the corresponding conical discs, the small discs are closely attached to the upper and lower surfaces of the corresponding conical discs, the upper small disc is located abovethe upper end surface of the rotor, and the lower small disc is located below the lower end surface of the rotor; and axial air gaps are left between the upper and lower small disks and the end surface of the rotor, and a control magnetic flux enters the receiving discs through return air gaps to axially form the self-loop without mounting a pushing disc, so the rotating speed of the rotor is optimized, and coupling of axial and radial magnetic fields is reduced.