A Zero Crossing Hybrid Bidirectional DC Circuit Breaker for HVDC Transmission Systems

Geon Kim, Jin Sung Lee, Jin Hyo Park, Hyun Duck Choi and Myoung Jin Lee
Additional contact information
Geon Kim: Department of ICT Convergence System Engineering, Chonnam National University, Gwangju 61186, Korea
Jin Sung Lee: Department of ICT Convergence System Engineering, Chonnam National University, Gwangju 61186, Korea
Jin Hyo Park: Department of ICT Convergence System Engineering, Chonnam National University, Gwangju 61186, Korea
Hyun Duck Choi: Department of ICT Convergence System Engineering, Chonnam National University, Gwangju 61186, Korea
Myoung Jin Lee: Department of ICT Convergence System Engineering, Chonnam National University, Gwangju 61186, Korea

Energies, 2021, vol. 14, issue 5, 1-12

Abstract: With the increasing demand for renewable energy power generation systems, high-power DC transmission technology is drawing considerable attention. As a result, stability issues associated with high power DC transmission have been highlighted. One of these problems is the fault current that appears when a fault occurs in the transmission line. If the fault current flows in the transmission line, it has a serious adverse effect on the rectifier stage, inverter stage and transmission line load. This makes the transmission technology less reliable and can lead to secondary problems such as fire. Therefore, fault current must be managed safely. DC circuit breaker technology has been proposed to solve this problem. However, conventional technologies generally do not take into account the effects of fault current on the transmission line, and their efficiency is relatively low. The purpose of this study is to introduce an improved DC circuit breaker that uses a blocking inductor to minimize the effect of fault current on the transmission line. It also uses a ground inductor to efficiently manage the LC resonant current and dissipate residual current. DC circuit breakers minimize adverse effects on external elements and transmission lines because the use of elements placed on each is distinct. All of these processes are precisely verified by conducting simulation under 200 MVA (±100 kV) conditions based on the VSC-based HVDC transmission link. In addition, the mechanism was explained by analyzing the simulation results to increase the reliability of the circuit in this paper.

Keywords: DC circuit breaker; ±230 kV MMC-HVDC; zero-crossing DCCB; DC transmission line; fault current; hybrid DCCB; bidirectional DCCB; external elements; energy dissipation (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 references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

Downloads: (external link)
https://www.mdpi.com/1996-1073/14/5/1349/pdf (application/pdf)
https://www.mdpi.com/1996-1073/14/5/1349/ (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:14:y:2021:i:5:p:1349-:d:508949

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 ().