Development of High-Speed Mechanical Switchgear with Vacuum Interruption Technology and Application in HVDC Circuit Breaker

Gu, Wei; Feng, Dongxia; Guo, Zide

doi:10.1109/cieec47146.2019.cieec-201951

Cited by 2 publications

(3 citation statements)

References 8 publications

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“…The most common design is with the active injection circuit consisting of a pre-charged capacitor bank that can produce a HF (few kHz) oscillating current in an L-C circuit [42][43][44][45][46]. This current is actively injected into the arcing vacuum gaps to create an artificial current zero as soon as possible after contact separation.…”

Section: Capacitor Discharge Current Injectionmentioning

confidence: 99%

“…The realization of the Zhangbei‐meshed ±500‐kV HVDC onshore grid [31, 32] also a project in China will initially include 16 HVDC breakers of five different Chinese suppliers offering three designs of hybrid type [14, 33], current injection [42] and coupled negative voltage technology [34] (see Figures 9, 10 and 11) (Courtesy of State Grid Corporation of China). These circuit breakers are installed during 2019–2020.…”

Section: Application Of Hvdc Circuit Breakersmentioning

confidence: 99%

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High‐voltage direct current fault current interruption: A technology review

Smeets

Belda

2020

High Voltage

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This review paper describes fault current interruption principles and various high‐voltage direct currrent (HVDC) circuit breaker technologies. First, fundamentals of HVDC fault current interruption and a generic set of requirements of HVDC circuit breakers are presented. The critical parameters during fault current interruption are assessed using a simplified mathematical model. Then, the state‐of‐the‐art of HVDC circuit breaker technologies and their application in actual HVDC multi‐terminal projects is highlighted. Several sub‐components of HVDC circuit breakers are standard components used in a non‐standard application and, hence, have to face non‐standard stresses. All of today's HVDC circuit breaker technologies consist of mechanical switching devices and metal‐oxide surge arresters, which are used in an unconventional way. A critical analysis of these stresses compared to the stresses in a conventional application is provided. Recommendations on testing supported with examples of actual full‐power ‘complete’ demonstration of HVDC circuit breakers up to 350 kV/20 kA are discussed. Finally, the actual status of standardisation activities is presented.

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Section: Capacitor Discharge Current Injectionmentioning

confidence: 99%

Section: Application Of Hvdc Circuit Breakersmentioning

confidence: 99%

High‐voltage direct current fault current interruption: A technology review

Smeets

Belda

2020

High Voltage

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“…Mechanical DC CBs use electromechanical components [8] and perhaps some low-rated semiconductor valves [9], but generally have slower opening speed, of around 8-10 ms. The recent installation in Zhangbei DC grid achieves faster 3 ms operation [10], although the basic modules have 50 kV rating.…”

Section: Introductionmentioning

confidence: 99%

Experimental Evaluation of 5 kV, 2 kA, DC Circuit Breaker With Parallel Capacitor

Jovcic

Kovacevic

2022

IEEE Trans. Power Delivery

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This article describes design, operation and experimental testing of a mechanical DC CB (Circuit Breaker) with parallel capacitors. The topology resembles hybrid DC CB but there are possible advantages in the costs since the main semiconductor valve is replaced with capacitors, and in performance since this breaker inserts counter voltage earlier. A detailed PSCAD model is employed to support DC CB design and to analyse operating principles. A 5 kV, 2 kA hardware demonstrator with 1.5 ms disconnector opening time is developed in the university laboratory. The test results demonstrate successful breaking of DC currents, with the measured time for insertion of capacitor voltage of around 290 µs. Further experimental analysis evaluates stresses on the key components, optimal timing for opening of LCS (Load Commutation Switch) and the margins for successful current interruption.

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Development of High-Speed Mechanical Switchgear with Vacuum Interruption Technology and Application in HVDC Circuit Breaker

Cited by 2 publications

References 8 publications

High‐voltage direct current fault current interruption: A technology review

High‐voltage direct current fault current interruption: A technology review

Experimental Evaluation of 5 kV, 2 kA, DC Circuit Breaker With Parallel Capacitor

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