Abstract：The efficiency of charging-discharging cycle of the 500Wh flywheel energy storage system was tested through the electric energy measurement method. In the charging model, the flywheel speeds from 12 000 r/min up to 36 000 r/min. The speed decreases from 36 000 r/min down to 12 000 r/min in the discharging model. The test showed that 49% of the energy was wasted by the motor and the motor control system. About ten percent of the energy become the bearing and wind friction loss. It is difficult to make the efficiency of the charging-discharging grow up to 80% even if both the motor and the controller efficiency was increased to 95%. The power consuming of the assistant equipment for the running of flywheel energy storage system was considered in the impro- vement of the efficiency of the flywheel energy storage system. It is concluded that the aerospace conditions are very suitable for the running of the flywheel energy storage system in high efficiency.
戴兴建, 于涵, 李奕良. 飞轮储能系统充放电效率实验研究[J]. 电工技术学报, 2009, 24(3): 20-24.
Dai Xingjian, Yu Han, Li Yiliang. Efficient Test on the Charging and Discharging of the Flywheel Energy Storage System. Transactions of China Electrotechnical Society, 2009, 24(3): 20-24.
2009, Vol. 24 
