Sequential auto-reclosing method for hybrid HVDC breaker in VSC HVDC links

Vinothkumar, K; Segerqvist, Inger; Johannesson, Niclas; Hassanpoor, Arman

doi:10.1109/spec.2016.7846120

Cited by 31 publications

(14 citation statements)

References 3 publications

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“…Though the second overcurrent strike under permanent faults is mitigated, there will be a strike when the additional resistance is bypassed under nonpermanent faults. A sequential auto-reclosing method for hybrid DCCB is proposed in [17]. But this method still brings about large dissipation requirement of DCCBs, which will reduce the life time of DCCBs.…”

Section: Introductionmentioning

confidence: 99%

An Adaptive Reclosing Strategy for MMC-HVDC Systems With Hybrid DC Circuit Breakers

Yang

Xiang

Zuo

et al. 2020

IEEE Trans. Power Delivery

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Modular multilevel converter (MMC) based high voltage direct current transmission (HVDC) is an effective solution for large-scale renewable power integration over long-distance. In the overhead MMC-HVDC systems, the high voltage DC circuit breakers (DCCB) are implemented to interrupt the DC fault current. Subsequent to fault isolation, the DCCBs are required to automatically re-close to restore power transmission quickly. However, when the DCCBs are re-closed to permanent faults, they will be tripped again, resulting in a high requirement of interruption capacity for DCCBs and second overcurrent strikes on the HVDC systems. To overcome the drawbacks of the conventional auto-reclosing scheme, this paper proposes an adaptive reclosing scheme based on the active pulse injection from the converter associated with the coordination control of hybrid DCCBs. The single-end adaptive reclosing scheme as well as the two ends adaptive reclosing scheme dedicated to two-terminal HVDC systems and meshed DC grids are presented respectively. By applying this method, the location of faults can also be achieved in the case of permanent faults. In order to verify the effectiveness of the proposed adaptive reclosing schemes, extensive simulations have been conducted under PSCAD/EMTDC.

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Section: Introductionmentioning

confidence: 99%

An Adaptive Reclosing Strategy for MMC-HVDC Systems With Hybrid DC Circuit Breakers

Yang

Xiang

Zuo

et al. 2020

IEEE Trans. Power Delivery

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“…The solid-state DCCB has high cost and high power loss and is not competitive for HVDC application [1]. The active resonant mechanical DCCBs reported in [3]- [7] utilize inductors and pre-charged capacitors to create a zero current to interrupt the fault current. The power loss of mechanical DCCBs is almost negligible since only the vacuum circuit breaker (VCB) is exposed to line dc current during normal operation.…”

Section: Introductionmentioning

confidence: 99%

“…References [5]- [6] demonstrated active resonant mechanical DCCBs driven by electromagnetic actuator that can interrupt dc fault current of up to 16kA within 5ms. However, it might be technologically challenging to achieve fast auto-reclose within 200-500ms [7] for mechanical DCCBs since the capacitors need to be recharged.…”

Section: Introductionmentioning

confidence: 99%

A novel HVDC circuit breaker for HVDC application

Zhou

Xiang

Zuo

et al. 2019

International Journal of Electrical Power & Energy Systems

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Hybrid high voltage direct current circuit breakers (DCCBs) are capable of interrupting fault current within a few milliseconds, but this technology has high capital cost, especially in a meshed HVDC grid. To increase the economic competitiveness of hybrid DCCBs, this paper proposes a capacitor commutated dc circuit breaker (CCCB). The CCCB mainly comprises an auxiliary branch with a fast dis-connector in series with semiconductor devices and the main branch with the series connection of a dc capacitor and diode valves. This paper provides a detailed depiction of the CCCB. The topology and operating principles are discussed. The impact of snubber circuits and stray inductances on the commutation process is analyzed. The general sizing method for the main components in the CCCB is detailed. Reclosing to transmission lines with different operating conditions is studied. Several extended topologies are proposed to further reduce the semiconductor cost and on-state operation power loss. The power loss and cost of CCCB are assessed. Extensive simulations on PSCAD/EMTDC verified the dc fault isolation and reclosing of the CCCB.

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“…However, be similar with AC grid, these reclose or restart functions could be realised by reclose of the DC breakers in DC grid. [16] provides a sequential auto‐reclosing method for hybrid HVDC breaker (HHB), which is tested on a two‐terminal VSC HVDC links.…”

Section: Introductionmentioning

confidence: 99%