Generic Analysis Framework for Modular Multilevel Converter HVDC with Multi-Infeed Line-Commutated Converter HVDC System

Sehyun Kim, Kyeon Hur, Jongseo Na, Jongsu Yoon and Heejin Kim
Additional contact information
Sehyun Kim: Electricity Technology Group, Samsung Electronics, Suwon-si 16677, Korea
Kyeon Hur: School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Korea
Jongseo Na: School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Korea
Jongsu Yoon: Korea Electric Power Corporation Research Institute (KEPRI), Daejeon 34056, Korea
Heejin Kim: R&D Center, Pion Electric, Gwangmyeong-si 14348, Korea

Energies, 2021, vol. 15, issue 1, 1-20

Abstract: This paper proposes a generic analysis framework for a grid supporting modular multilevel converter (MMC)-high voltage DC (HVDC) in a multi-infeed of line commutated converter (LCC) and MMC (MILM) system. MMC-HVDC can support the grid by compensating for the exact reactive power consumptions within the MMC-HVDC system and the varying power system conditions in the MILM system. Maximum active/reactive power capability (MPQC) curve and PQ loading curve comparison process is introduced to properly design a grid supporting MMC-HVDC. While the MPQC curve presents the maximum PQ range of the MMC-HVDC system based on the submodule capacitance value and the modulation index, the PQ loading curve presents the reactive power requirement from the power system that MMC-HVDC needs to compensate. Finally, the comparison of these two curves yields the proper value of submodule capacitance and the modulation index for sufficiently supporting the MILM system. The proposed framework is validated with detailed PSCAD/EMTDC simulation; it demonstrated that it could be applied to various power system conditions.

Keywords: multi-infeed; MMC-HVDC; PQ capability; reactive power; LCC-HVDC; EMTDC; short circuit capacity; energy storage requirement (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/15/1/184/pdf (application/pdf)
https://www.mdpi.com/1996-1073/15/1/184/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:15:y:2021:i:1:p:184-:d:712940

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().