Research on Broadband Modeling Method of Key Equipment of Converter Station Based on RTDS

There are many kinds of harmonic generation or transmission electrical equipment in conventional DC transmission converter station. It is very important to establish a converter station broadband model for simulation study. However, the existing conventional DC converter broadband model and RTDS sma...

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Bibliographic Details
Published in2022 IEEE International Power Electronics and Application Conference and Exposition (PEAC) pp. 1304 - 1307
Main Authors Peng, Guangqiang, Wu, Jiyang, He, Jingsong, Dong, Liangliang, Wang, Shunliang, Ma, Junpeng
Format Conference Proceeding
LanguageEnglish
Published IEEE 04.11.2022
Subjects
Bandwidth
broadband model
converter station
Fitting
impedance characteristics
Power system harmonics
Rectifiers
RTDS
Thyristors
Transformers
Valves
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Summary:There are many kinds of harmonic generation or transmission electrical equipment in conventional DC transmission converter station. It is very important to establish a converter station broadband model for simulation study. However, the existing conventional DC converter broadband model and RTDS small step width broadband model of converter valve are not accurate enough. In this paper, according to the physical structure of conventional DC converter, converter valve and other components, the corresponding broadband equivalent model is established on RSCAD. According to the bandwidth impedance characteristics of related components, the appropriate impedance characteristic data fitting method is proposed to extract the converter bandwidth impedance model parameters. Finally, the simulation is carried out on RTDS hardware-in-the-loop simulation platform. The correctness of the modeling results is verified and the model accuracy meets the requirements.
DOI:10.1109/PEAC56338.2022.9959215