NDLI: Research on the breaking branch for a hybrid DC circuit breaker in ±500 kV voltage-sourced converter high-voltage direct current grid

Content Provider	IET Digital Library
Author	Feng, Lei Gou, Ruifeng Zhuo, Fang Yang, Xiaoping Zhang, Fang
Abstract	In order to construct the voltage-sourced converter high-voltage direct current grids, the high capacity direct current circuit breakers (DCCBs) are in demand. The hybrid DCCB has been the mainstream proposal, where the high-voltage solid-state switch (HVSS) is the key component for breaking the final fault current. Investigating the current commutation between the breaking branch and energy-absorbing branch, a hybrid DCCB with repositioned current commutation module (CCM) and redesigned HVSS is proposed in this study. By analysing the equivalent circuit of the CCM and HVSS, the detailed transient stages during current interruption procedure have been revealed, and the comparisons of different topologies for HVSS are made in-depth. The repositioned CCM can greatly decrease the transient voltage stress for HVSS and CCM whilst the improved HVSS including metal oxide varistor can maintain better interruption performances. Then the actual prototypes are developed to verify the effectiveness of the improved hybrid DCCB topology. In the end, a 500 kV DCCB is realised based on the proposed HVSS, which can ensure the reliability and convenience of the hybrid DCCB.
Starting Page	3560
Ending Page	3570
Page Count	11
ISSN	17554535
Volume Number	13
e-ISSN	17554543
Issue Number	Issue 16, Dec (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/13/16
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2020.0146
Journal	IET Power Electronics
Publisher Date	2020-08-11
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Breaking Branch CCM Circuit Breaker Commutation Current Interruption Procedure Energy-absorbing Branch Equivalent Circuit Fault Current Final Fault Current High Capacity Direct Current Circuit Breaker High-voltage Solid-state Switch Hybrid DC Circuit Breaker Improved HVSS Improved Hybrid DCCB Topology Power Converter Power Semiconductor Device Power Semiconductor Switches Power Supplies to Apparatus Relay And Switches Repositioned Current Commutation Module Switch Transient Voltage Stress Varistors Voltage 500 KV Voltage-sourced Converter High-voltage Direct Current Grid ±500 KV Voltage-sourced Converter High-voltage Direct Current Grid
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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