Energy Storage Science and Technology ›› 2013, Vol. 2 ›› Issue (3): 181-184.doi: 10.3969/j.issn.2095-4239.2013.03.001

• Physical energy storage •     Next Articles

Online balancing of the rotor-bearing unit of the flywheel energy storage system

ZHANG Chaoping1, DAI Xingjian2, MENG Xiangyong1, LI Shengzhong1, FAN Jun1   

  1. 1 Zhongyuan Petroleum Engineering Company Limited,SINOPEC,Puyang 457001,Henan,China;
    2 Tsinghua University,Beijing 100084,China
  • Received:2013-04-20 Online:2013-06-19 Published:2013-06-19

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Abstract: The SB-7700 balancing monitor was used to carry out the online balancing experiment on the rotor-bearing unit of the flywheel energy storage system. The additional balance process flywheel was designed according to the balancing test results. The flywheel rotor-bearing system arrived at the rated speed of 3600 r/min after the rotor-bearing unit was balanced by the two-plane balancing method. The vibration monitor measurement showed that the vibration expressed some difference between the charging and discharging state. The discharging power rate had great impact on the amplitude-frequency performance at the resonance of the rotor-bearing unit. This was caused by the bias electrical-magnetic force of the permanent motor.

Key words: flywheel energy storage, rotor-bearing system, balancing

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