FLYWHEEL ENERGY STORAGE SYSTEM HAVING PERMANENT MAGNET TRANSMISSION

WIPO Patent Application WO/2023/088323

A1

Provided in the present disclosure is a flywheel energy storage system having a permanent magnet transmission. The flywheel energy storage system comprises an electric motor, a flywheel rotor, a permanent magnet transmission and a generator. The electric motor is connected to the flywheel rotor to drive the flywheel rotor to rotate. The permanent magnet transmission comprises a permanent magnet rotor and a conductor rotor, which are coaxially arranged, wherein the permanent magnet rotor and the conductor rotor are opposite in an axial direction and form an air gap; and the flywheel rotor is drivingly connected to one of the permanent magnet rotor and the conductor rotor to drive same to rotate, so as to drive the other one of the permanent magnet rotor and the conductor rotor to rotate. The permanent magnet transmission further comprises a displacement device, which is used for adjusting the size of the air gap, such that the rotation speed of the other one of the permanent magnet rotor and the conductor rotor can remain constant; and the other one of the permanent magnet rotor and the conductor rotor is drivingly connected to an input end of the generator so as to drive the generator to stably generate power and output constant-frequency electrical energy.

CHEN JUN (CN)
LI YING (CN)
CHEN HOUCUN (CN)
LIU YUHAN (CN)
NIU MINGYU (CN)
LI FANGFEI (CN)
BAI NING (CN)

PCT/CN2022/132340

May 25, 2023

November 16, 2022

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STATE POWER INVESTMENT CORPORATION RES INSTITUTE (CN)

H02K7/02; H02K49/10

CN114257026A	2022-03-29
CN216721106U	2022-06-10
CN113489230A	2021-10-08
CN101725476A	2010-06-09
CN1539669A	2004-10-27
JP2016084708A	2016-05-19

TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)

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