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Conference proceeding
A Novel Model of Thyristor in Reverse Recovery Process for Current Interruption Test of HVDC Circuit Breakers
2020 IEEE TRANSPORTATION ELECTRIFICATION CONFERENCE & EXPO (ITEC), pp 858-862
01 Jan 2020
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The high voltage thyristor is widely used in high voltage DC (HVDC) grids due to its large current capability. Recently, the high voltage thyristor is implemented to produce a high current in the HVDC circuit breaker (CB) testing process. Unfortunately, the reverse recovery process (RRP) of a thyristor could induce significant turn-off overvoltage and power losses, jeopardizing the safety of the devices. The existing models of a thyristor cannot describe such hard-switching transient accurately. Therefore, this paper divides this process into four stages based on the physical mechanism and proposes a novel cosine exponential (CE), simulating the voltage and current of the thyristor with analytical equations, which are derived from the equivalent circuit. Moreover, the extraction procedure of the proposed model is illustrated in this paper. Finally, we develop an HVDC CB test platform to validate the proposed model. Experimental results show that the proposed CE model can accurately predict the overvoltage with a relative error of less than 8% at various current varying rates.
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Details
- Title
- A Novel Model of Thyristor in Reverse Recovery Process for Current Interruption Test of HVDC Circuit Breakers
- Creators
- Zhonghao Dongye - North China Elect Power Univ, Beijing, Peoples R ChinaLei Qi - North China Elect Power Univ, Beijing, Peoples R ChinaXiang Cui - North China Elect Power Univ, Beijing, Peoples R ChinaXianshan Guo - State Grid Corp China, Beijing, Peoples R ChinaHua Zhang - Drexel UniversitySheng Zheng - Oak Ridge Natl Lab, Oak Ridge, TN USAFei Lu - Drexel University
- Publication Details
- 2020 IEEE TRANSPORTATION ELECTRIFICATION CONFERENCE & EXPO (ITEC), pp 858-862
- Conference
- IEEE Transportation Electrification Conference and Expo (ITEC) (Virtual, 23 Jun 2020–26 Jun 2020)
- Publisher
- IEEE
- Number of pages
- 5
- Grant note
- SGTYHT/17-JS-199 / Science and Technology Project of SGCC DE-AR0001114 / Advanced Research Projects Agency Energy (ARPA-E), U.S. Department of Energy; United States Department of Energy (DOE)
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Electrical and Computer Engineering
- Web of Science ID
- WOS:000620344100145
- Scopus ID
- 2-s2.0-85096540825
- Other Identifier
- 991019170330204721
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- Collaboration types
- Industry collaboration
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Engineering, Electrical & Electronic
- Transportation Science & Technology