Enhanced Active Resonant DC Circuit Breakers Based on Discharge Closing Switches

Augustin, Tim; Becerra, Marley; Nee, Hans‐Peter

doi:10.1109/tpwrd.2020.3014084

Cited by 10 publications

(20 citation statements)

References 32 publications

(32 reference statements)

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“…The EAR DCCBs were introduced in [28]. The originally proposed unidirectional EAR DCCB configuration is shown in Fig.…”

Section: A Overviewmentioning

confidence: 99%

“…An injection circuit as used in current-injection DCCBs is applied to force a current zero crossing in the DCS for turn-OFF and to interrupt the DC i DC . The operation states of the originally proposed EAR DCCB configuration were explained in [28] for several operating scenarios. The use of DCSs is beneficial in terms of costs, reliability, robustness, current and voltage ratings, and footprint.…”

Section: A Overviewmentioning

confidence: 99%

“…The thyristors must be turned OFF with an external circuit comparable to an injection circuit. The enhanced active resonant (EAR) DCCBs introduced in [28] are tube-based DCCBs that use discharge closing switches (DCSs) as interruption medium. DCSs are like discharge-based thyristors because DCSs can be turned ON and not OFF.…”

Section: Introductionmentioning

confidence: 99%

“…The knowledge about EAR DCCBs and their properties is still limited. The operation modes of originally proposed EAR DCCBs were explained in [28]. However, the preliminary test results only demonstrated the basic operating principle of EAR DCCBs.…”

Section: Introductionmentioning

confidence: 99%

“…The main contribution of this article is an in-depth experimental study of the EAR DCCBs in various operating modes and of a novel commutation process. As explained in [28], operating scenarios such load current interruption and high impedance faults with relatively low current can be challenging for EAR DCCBs, because of the minimum voltage requirement of the DCS. The article also addresses this open question by experimentally studying the characteristics of the DCS and the commutation processes at low current and low voltage.…”

Section: Introductionmentioning

confidence: 99%

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Experimental Study of Enhanced Active Resonant DC Circuit Breakers

Augustin

Becerra²,

Nee

2022

IEEE Trans. Power Electron.

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Enhanced active resonant (EAR) DC circuit breakers (DCCBs) are a novel type of DCCB that use a discharge closing switch as interruption medium. A technical limitation of discharge closing switches is the minimum voltage across the main gap required for successful triggering. A novel commutation process creating the minimum voltage internally is proposed, which allows to simplify the EAR DCCB configuration and to reduce its component count. In the prototype, the discharge closing switch is implemented with a triggered vacuum gap. Experiments show that the triggered vacuum gap can be triggered reliably down to a voltage of 50 V and that the discharge in the triggered vacuum gap is highly oscillatory at low current. The originally proposed EAR DCCB configuration has to be tuned such that the commutation to the triggered vacuum gap succeeds at low current. Conversely, the novel commutation process decouples the minimum voltage from the current level by adjusting the triggering delay. This allows reliable commutation irrespective of the operating conditions. It is shown that the novel commutation process does not adversely affect DC interruption. Proactive commutation operation and auto-reclosing strategies are demonstrated.

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“…The EAR DCCBs were introduced in [28]. The originally proposed unidirectional EAR DCCB configuration is shown in Fig.…”

Section: A Overviewmentioning

confidence: 99%

Section: A Overviewmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Experimental Study of Enhanced Active Resonant DC Circuit Breakers

Augustin

Becerra²,

Nee

2022

IEEE Trans. Power Electron.

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Prediction of operating reliability of multi-body mechanism in micro-switches considering parameter distribution and wear of parts

Zhou

Ling

et al. 2022

J Mech Sci Technol

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A natural commutation current topology of hybrid HVDC circuit breaker integrated with limiting fault current

Zhang

Zhuo

Yang

2023

IET Generation Trans & Dist

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The high-voltage direct current (HVDC) power transmission short-circuit fault protection is a big challenge, and it is the main obstacle to promote the HVDC multi-terminal networks. A natural commutation current topology (NCCT) of hybrid HVDC circuit breaker (DCCB) integrated with limiting fault current is proposed in this paper, which shares several obvious merits, such as lower peak fault current, shorter fault isolation time and low turn-off loss. The main contributions in this paper are made as follows. (1). A second-order RLC circuit in novel NCCT circuit breaker is utilized as the current limiting circuit to dramatically reduce the fault current rising slope and its peak value. (2) A asynchronous NCCT circuit breaker has been investigated to broaden the proposed NCCT circuit breaker's optimal working area. (3) By taking China Zhangbei 500 kV four-terminal DC grid as an example, an optimization design technique of the asynchronous NCCT-DCCB is developed to demonstrate the process of the theoretical analysis and parameter design. The correctness of the proposed NCCT-DCCB and the feasibility of the optimization design technique are confirmed by EMT simulation on PSCAD/EMTDC and hardware-in-loop experiment on PLECS-RtBox.

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Enhanced Active Resonant DC Circuit Breakers Based on Discharge Closing Switches

Abstract: This is the accepted version of a paper published in IEEE Transactions on Power Delivery. This paper has been peer-reviewed but does not include the final publisher proof-corrections or journal pagination.

Cited by 10 publications

References 32 publications

Experimental Study of Enhanced Active Resonant DC Circuit Breakers

Experimental Study of Enhanced Active Resonant DC Circuit Breakers

Prediction of operating reliability of multi-body mechanism in micro-switches considering parameter distribution and wear of parts

A natural commutation current topology of hybrid HVDC circuit breaker integrated with limiting fault current

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