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LAPSE:2019.0378
Published Article
LAPSE:2019.0378
HVDC-System-Interaction Assessment through Line-Flow Change-Distribution Factor and Transient-Stability Analysis at Planning Stage
February 27, 2019
Many of the recent projects for new transmission line have considered the high-voltage direct current (HVDC) system, owing to the many advantages of the direct current (DC) system. The most noteworthy advantage is that a cable can serve as a substitute for the overhead transmission line in residential areas; therefore, the HVDC system application is increasing, and as the number of DC systems in the power system increases, the interaction assessment regarding the HVDC system gains importance. An index named multi-infeed interaction factor (MIIF) is commonly used to estimate the interaction between power converters; however, the HVDC system is composed of two converters and a transmission line. The MIIF represents the interaction between the rectifiers and inverters, but not for the whole system. In this work, a method to assess the interaction of the whole system was therefore studied. To decide on the location of the new HVDC transmission system at the planning stage, in consideration of the interaction of the existing DC system, the line flow change distribution factor, according to the HVDC-transmission capacity change, was examined. Also, a power system transient -stability analysis was performed with different HVDC system locations, depending on the distribution factor. The simulation results indicate that when the factor is higher, two HVDC systems have a stronger interaction and are less stable in the transient state.
Keywords
high-voltage direct current (HVDC), interaction, Planning, transient stability
Subject
Suggested Citation
Hwang S, Lee J, Jang G. HVDC-System-Interaction Assessment through Line-Flow Change-Distribution Factor and Transient-Stability Analysis at Planning Stage. (2019). LAPSE:2019.0378
Author Affiliations
Hwang S: School of Electrical Engineering, Korea University, Anam-ro, Sungbuk-gu, Seoul 02841, Korea [ORCID]
Lee J: Power Transmission Laboratory, Korea Electric Power Research Institute (KEPRI), Munji-ro, Yuseong-gu, Daejeon 34056, Korea
Jang G: School of Electrical Engineering, Korea University, Anam-ro, Sungbuk-gu, Seoul 02841, Korea [ORCID]
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Journal Name
Energies
Volume
9
Issue
12
Article Number
E1068
Year
2016
Publication Date
2016-12-16
Published Version
ISSN
1996-1073
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Original Submission
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PII: en9121068, Publication Type: Journal Article
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LAPSE:2019.0378
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doi:10.3390/en9121068
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Feb 27, 2019
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CC BY 4.0
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Feb 27, 2019
 
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Feb 27, 2019
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Original Submitter
Calvin Tsay
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