New Simple-Structured AC Solid-State Circuit Breaker

Song, Seung-Min; Kim, Jin‐Young; Choi, Seung-Soo; Kim, In-Dong; Choi, Sunkyu

doi:10.1109/tie.2018.2809674

Cited by 24 publications

(13 citation statements)

References 14 publications

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“…The measurement module includes a current transformer and measuring instrument, which can monitor the current of each IGBT branch in real-time and take over-current protection measures. The adopted cooling system is generally water cooling, as it has a low cost and good effect [24] , [25] , [26] .…”

Section: Proposed Pse Devicementioning

confidence: 99%

Design and test of a novel power electronic device for phase sequence exchange technology

Huang

et al. 2021

International Journal of Electrical Power & Energy Systems

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Section: Proposed Pse Devicementioning

confidence: 99%

Design and test of a novel power electronic device for phase sequence exchange technology

Huang

et al. 2021

International Journal of Electrical Power & Energy Systems

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“…In practical application, the MMC would be blocked after the detection of dc side fault. Therefore, analysis of the transient response of dc side fault is based on the blocking of MMC [21,[41][42][43][44][45]. In [15], before the MMC is blocked, the ac current contributes to the dc side.…”

Section: Ptp Faultmentioning

confidence: 99%

“…The time-domain formulation of dc fault current can be deduced based on the differential equation [21,41,46] i…”

Section: Arm Capacitor Discharging Stage (Before Blocking)mentioning

confidence: 99%

“…In order to protect the MMC‐based HVDC system from dc short‐circuit faults, several protection strategies based on circuit breakers (CBs) are investigated. For the traditional ac CB (ACCB) [17, 20, 21], due to the slow response, the freewheeling diodes in the converters are required to be rated for full prospective short‐circuit current during the ACCB operation. Furthermore, the system is shut down and no real or reactive power is exchanged, which will take a considerable long time to recover for the system [22].…”

Section: Introductionmentioning

confidence: 99%

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Review on topology‐based dc short‐circuit fault ride‐through strategies for MMC‐based HVDC system

Wan

Mao

Zhou

et al. 2020

IET Power Electronics

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Modular multilevel converter (MMC) based high-voltage direct-current (HVDC) transmission system is a promising solution to the bulk power transmission over a long distance, especially for renewable energy integration. However, conventional half-bridge submodules MMC topology is susceptible to dc faults. In this study, dc short-circuit fault analysis and a review on recent advances in clearing dc fault current utilising different topologies are presented. Furthermore, the MMC can also work as a static synchronous compensator, producing reactive power to support the grid and improving the stability of the system when dc fault occurs. Finally, the comparison for different topologies in terms of device cost, estimated power losses, dc fault ridethrough capability, and reactive power compensation capability is given.

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“…A solid-state AC circuit breaker based on charging and discharging structure of a phase-changing capacitor is proposed in [8]. The circuit breaker can switch between normal state and blocking state by controlling the on-off status of a silicon controlled rectifier (SCR).…”

Section: Introductionmentioning

confidence: 99%

Bidirectional Short-Circuit Current Blocker for DC Microgrid Based on Solid-State Circuit Breaker

et al. 2020

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In order to solve the imminent problem in that the traditional protection strategy cannot meet time requirements, together with the fact that the rotational inertia of a DC microgrid is small and short-circuit fault develops rapidly, a bidirectional short-circuit current blocker (BSCCB) based on solid-state circuit breaker for a DC microgrid is proposed. Firstly, the bidirectional current blocking circuit structure is proposed based on the analysis of key components. Then, a top-level differential protection strategy is developed based on the aforementioned proposal. Finally, the performance of the blocking circuit is simulated and verified by experiments. The results show that the proposed method can block short-circuit current within 4 ms, and the response speed of the protection strategy is very fast compared with previous approaches. BSCCB also has reclosing, bidirectional blocking and energy releasing functions. The current blocker proposed in this paper can be reused multiple times and has a promising future in low-voltage DC microgrid application.

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New Simple-Structured AC Solid-State Circuit Breaker

Cited by 24 publications

References 14 publications

Design and test of a novel power electronic device for phase sequence exchange technology

Design and test of a novel power electronic device for phase sequence exchange technology

Review on topology‐based dc short‐circuit fault ride‐through strategies for MMC‐based HVDC system

Bidirectional Short-Circuit Current Blocker for DC Microgrid Based on Solid-State Circuit Breaker

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