Review of protection and fault handling for a flexible DC grid

With the development of power electronics technology, the flexible DC grid will play a significant role in promoting the transformation and reformation of the power grid. It is immune to commutation failure and has high flexibility in power control and renewable energy grid integration. However, the...

Full description

Saved in:
Bibliographic Details
Published inProtection and control of modern power systems Vol. 5; no. 1; pp. 1 - 15
Main Authors He, Jinghan, Chen, Keao, Li, Meng, Luo, Yiping, Liang, Chenguang, Xu, Yin
Format Journal Article
LanguageEnglish
Published Singapore Springer Singapore 19.05.2020
Springer Nature B.V
SpringerOpen
Subjects
Commutation
Converters
Electric power grids
Electrical Machines and Networks
Energy
Energy Systems
Fault analysis
Fault isolation
Flexible DC power grid
Overcurrent
Power control
Power Electronics
Protection
Reclose
Renewable and Green Energy
Review
Flexible DC power grid
Fault isolation
Fault analysis
Reclose
Protection
Online AccessGet full text

Cover

More Information
Summary:With the development of power electronics technology, the flexible DC grid will play a significant role in promoting the transformation and reformation of the power grid. It is immune to commutation failure and has high flexibility in power control and renewable energy grid integration. However, the protection and fault handling technology for a flexible DC grid is a big challenge because of the limited overcurrent capability of the converters. This paper summarizes the development of the flexible DC grid, and analyzes the fault characteristics in detail. Next, the applicability, advantages and disadvantages of the existing protection principle, fault isolation and recovery schemes are reviewed. Finally, the key problems and development trend of the future flexible DC grid are pointed out and forecasted respectively.
ISSN:2367-2617
2367-0983
DOI:10.1186/s41601-020-00157-9