Harmonic feature of 27.5 kV traction power system in a Chinese high‐speed railway
نویسندگان
چکیده
The key to controlling harmonics in high-speed railways is get information on its harmonic feature. In this study, a continuous 24 h observation carried out Ji'an West traction substation of typical Chinese railway. both the operating period and two train driving processes, features 27.5 kV buses are studied under multiple modes, which finds that voltage current content mainly consist low-order below 11th order with high-order ranges from 13th 31st 89th 99th order. law distribution changes load derived. Calculation results show power function relationship between total distortion bus current. regenerative braking higher than less harmonics. Finally, authors find an admittance matrix coupling 3rd for simplified modelling transmission.
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ژورنال
عنوان ژورنال: IET electrical systems in transportation
سال: 2022
ISSN: ['2042-9738', '2042-9746']
DOI: https://doi.org/10.1049/els2.12062