Comparative study of superconducting fault current limiter both for LCC-HVDC and VSC-HVDC systems

Title
Comparative study of superconducting fault current limiter both for LCC-HVDC and VSC-HVDC systems
Author
이방욱
Keywords
DC fault current limitation; HVDC fault current analysis; HVDC grid protection; LCC-HVDC; Resistive superconducting fault current limiter (SFCL); VSC-HVDC
Issue Date
2015-11
Publisher
ELSEVIER SCIENCE BV
Citation
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, v. 518, Page. 149-153
Abstract
High Voltage Direct Current (HVDC) system has been evaluated as the optimum solution for the renewable energy transmission and long-distance power grid connections. In spite of the various advantages of HVDC system, it still has been regarded as an unreliable system compared to AC system due to its vulnerable characteristics on the power system fault. Furthermore, unlike AC system, optimum protection and switching device has not been fully developed yet. Therefore, in order to enhance the reliability of the HVDC systems mitigation of power system fault and reliable fault current limiting and switching devices should be developed. In this paper, in order to mitigate HVDC fault, both for Line Commutated Converter HVDC (LCC-HVDC) and Voltage Source Converter HVDC (VSC-HVDC) system, an application of resistive superconducting fault current limiter which has been known as optimum solution to cope with the power system fault was considered. Firstly, simulation models for two types of LCC-HVDC and VSC-HVDC system which has point to point connection model were developed. From the designed model, fault current characteristics of faulty condition were analyzed. Second, application of SFCL on each types of HVDC system and comparative study of modified fault current characteristics were analyzed. Consequently, it was deduced that an application of AC-SFCL on LCC-HVDC system with point to point connection was desirable solution to mitigate the fault current stresses and to prevent commutation failure in HVDC electric power system interconnected with AC grid. (C) 2015 Elsevier B.V. All rights reserved.
URI
https://www.sciencedirect.com/science/article/pii/S0921453415000702http://hdl.handle.net/20.500.11754/40934
ISSN
0921-4534; 1873-2143
DOI
10.1016/j.physc.2015.02.043
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE