Long-term DC arc test design and result analysis of DC high speed switch for multi-terminal DC transmission systems

Changhong Zhang; Jinzhuan Lv; Mingyang Li; Bin Chen; Weiguo Li; Xu Yang; Boyi Fang; Qi Long; Mingchun Hou; Xiang Peng; Jinwei Chu

doi:10.1117/12.3015306

6 February 2024 Long-term DC arc test design and result analysis of DC high speed switch for multi-terminal DC transmission systems

Changhong Zhang, Jinzhuan Lv, Mingyang Li, Bin Chen, Weiguo Li, Xu Yang, Boyi Fang, Qi Long, Mingchun Hou, Xiang Peng, Jinwei Chu

Author Affiliations +

Proceedings Volume 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023); 129795O (2024) https://doi.org/10.1117/12.3015306
Event: 9th International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 2023, Guilin, China

Abstract

High-Speed DC Switches (HSS) are critical equipment in multi-terminal DC transmission systems, with their ability to withstand DC arc ablation for extended periods being crucial. This paper presents an experimental study of HSS characteristics in ±800 kV hybrid multi-terminal HVDC projects. We constructed a constant current DC high-current test circuit for switching power supplies and conducted long-term ablation tests of HSS DC arcs under operating conditions and product characteristics of HSS. Additionally, we performed DC arc endurance tests on a 500 kV DC switch sample. The results demonstrate that ablation prototypes based on 1% boron nitride nozzle of CuW70 contact, 3% boron nitride nozzle of CuW80 contact, and 5% boron nitride nozzle of CuW85 contact can withstand long arc tolerance conditions of 4000A/5 times/400ms. In the DC arc test, the arc voltage of the two break surfaces of HSS stabilized at approximately 1 kV, and the weight of the static arc contact decreased by 10 g, while the length shortened by 1.7 mm. Finally, based on the results of the DC arc ablation test, we recommend using CuW70 for the static arc contact, CuW80 for the moving arc contact, and adding 3% boron content to the nozzle nitrogen. The research results provide valuable insights for structure optimization and material selection of HSS interrupters.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Changhong Zhang, Jinzhuan Lv, Mingyang Li, Bin Chen, Weiguo Li, Xu Yang, Boyi Fang, Qi Long, Mingchun Hou, Xiang Peng, and Jinwei Chu "Long-term DC arc test design and result analysis of DC high speed switch for multi-terminal DC transmission systems", Proc. SPIE 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 129795O (6 February 2024); https://doi.org/10.1117/12.3015306

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
10 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Ablation

Circuit switching

Nozzles

Prototyping

Switches

Boron nitride

Capacitors

Show All Keywords

Keywords/Phrases

Search In:

Publication Years