Application and research of flywheel energy storage system in electrified railway

doi:10.12028/j.issn.2095-4239.2018.0137

Abstract

Abstract: The flywheel energy storage is used to reduce the power output of the transformer by discharging energy to the power grid when the line load is heavy. FES is useful to reduce the maximum demand value or transformer capacity, depress the negative sequence current of railway and absorb the braking energy generated to save energy. This paper presented the integration structure of the system, converter system, flywheel energy storage device, measurement and control unit. The simulation model of the system is proposed according to the actual substation parameters and the actual measured traction load data. The simulation analysis indicated that the proposed flywheel energy storage system was suitable for peak shaving in electrified railway.

Key words: electrified railway, peak shaving, lower basic electricity charges, negative sequence regulation, regenerative braking energy recovery, flywheel energy storage system

CLC Number:

TH133

WANG Dajie, CHEN Ying, TANG Yingwei, LI Shengfei, ZHAO Sifeng. Application and research of flywheel energy storage system in electrified railway[J]. Energy Storage Science and Technology, 2018, 7(5): 853-860.

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