Enhanced Diode-rectifier HVDC for Offshore Wind Power Transmission

As a promising scheme for offshore wind power transmission, diode rectifier based high voltage dc has raised wide attention recently. But the design of DR-HVDC is mainly based on the traditional line commutated converter HVDC, which required large amount of reactive power and generated high harmonic...

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Bibliographic Details
Published in2019 4th IEEE Workshop on the Electronic Grid (eGRID) pp. 1 - 7
Main Authors Cheng, Fan, Yao, Liangzhong, Ji, Ke, Ding, Chao, Wang, Qiangqiang, Deng, Junpeng
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.11.2019
Subjects
characteristic harmonic
converter transformer
diode rectifier
high voltage direct current
offshore wind power transmission
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Summary:As a promising scheme for offshore wind power transmission, diode rectifier based high voltage dc has raised wide attention recently. But the design of DR-HVDC is mainly based on the traditional line commutated converter HVDC, which required large amount of reactive power and generated high harmonics. In this paper, an enhanced DR-HVDC is proposed to reduce the harmonic and reactive power consumption by utilizing 24 pulses bridge and transformer with decreased leakage reactance. Meanwhile, the filter designed for enhanced DR-HVDC is also introduced, which can save the space required for reactive power compensation. Finally, the enhanced DR-HVDC with Type IV wind farm controlled by distributed phase lock loop scheme is built in PSCAD/EMTDC, which proved the effectiveness and superiority of proposed scheme.
DOI:10.1109/eGRID48402.2019.9092657