AC Side Fault Characteristics Analysis of LCC-MMC Hybrid HVDC

when the AC short-circuit fault occurs in the multi-DC feed area, it may cause the failure of multi-DC simultaneous commutation, causing the huge power shortage and affecting the stability of the power grid. Hybrid DC transmission is one of the effective solutions to solve the failure of commutation...

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Bibliographic Details
Published in2019 4th IEEE Workshop on the Electronic Grid (eGRID) pp. 1 - 6
Main Authors Xin, Guangming, Xu, Peng, Zhang, Hanzhi, Liang, Weichen, Chen, Rui
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.11.2019
Subjects
AC side short circuit
Circuit faults
fault characteristic analysis
hybrid DC transmission
Inverters
LCC - MMC
Mathematical model
Power system stability
Rectifiers
Voltage control
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Summary:when the AC short-circuit fault occurs in the multi-DC feed area, it may cause the failure of multi-DC simultaneous commutation, causing the huge power shortage and affecting the stability of the power grid. Hybrid DC transmission is one of the effective solutions to solve the failure of commutation of conventional DC transmission. This paper introduces the main topology of hybrid DC transmission, expounds the principle of LCC-MMC hybrid DC transmission system, analyzes the fault characteristics of rectifier and inverter stations, and carries out simulation.
DOI:10.1109/eGRID48402.2019.9092684