Investigation of suppression effect of short-circuit current and voltage drop in multi-terminal HVDC by DC reactor

Tahata, K.; Tokoyoda, Sho; Kikuchi, K.; Miyashita, Mitsuru; Kamei, Kenji; Yoshida, Daisuke; Kono, Yoshiyuki; Yamamoto, Rei; Ito, Hiroki

doi:10.1109/icepe-st.2015.7368337

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…In summary, Table 6-1 to Table 6-5 provide high-level summary of the main aspects discussed earlier. Table 6-5: High-level comparison of low loss dc circuit breakers [18,75,83,89,95,96,[122][123][124][125][126][127][128][129][130][131][132][133][134][135][136][137] Hybrid dc circuit breakers Resonance based dc circuit breakers Target operating speeds 3ms to 5ms 8ms to 15ms, except type 4 dc circuit breaker in Fig. 7(d…”

Section: Resonant DC Circuit Breakersmentioning

confidence: 99%

Review of technologies for DC grids – power conversion, flow control and protection

Adam

Vrana

et al. 2019

IET Power Electronics

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This article reviews dc transmission technologies for future power grids. The article emphasizes the attributes that each technology offers in terms of enhance controllability and stability, resiliency to ac and dc faults, and encourage increased exploitations of renewable energy resources (RERs) for electricity generation. Discussions of ac/dc and dc/dc converters reveal that the self-commutated dc transmission technologies are critical for better utilization of large RERs which tend to be dispersed over wide geographical areas, and offer needed controllability for operation of centralized and decentralized power grids. It is concluded that the series power flow controllers have potential to restrict the expensive isolated dc/dc converters to few applications, in which the prevention of dc fault propagation is paramount. Cheaper non-isolated dc/dc converters offer dc voltage tapping and matching and power regulation but they are unable to prevent pole-shifting during pole-to-ground dc fault. To date hybrid dc circuit breakers target dc fault isolation times ranging from 3ms to 5ms; while the resonance-based dc circuit breakers with forced current zeros target dc fault clearance times from 8ms to 12.5ms.

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Section: Resonant DC Circuit Breakersmentioning

confidence: 99%

Review of technologies for DC grids – power conversion, flow control and protection

Adam

Vrana

et al. 2019

IET Power Electronics

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“…Figure 1 shows the structure of mechanical DC CB model [5], which consists of three branches, namely, the main branch, the current injection branch and energy absorption branch. Three high speed 72.…”

Section: A Model Structure and Parametersmentioning

confidence: 99%

Investigation on the DC CB Performance During a Current Interruption Failure at First Current Zero

Liu

Geng

Popov

et al. 2018

2018 28th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV)

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The vacuum interrupter is used as the key component of an active DCCB due to its excellent interruption and dielectric recovery characteristics after current zero. The vacuum interrupter can only interrupt the fault currents below the limitation of a critical di/dt and TIV, otherwise it causes a reignition and the interruption failure. In this paper, a detailed active injection DC CB model is developed, considering operation delay of switches, parasitic parameters of switches and thorough control logic. The limitation dielectric strength between the vacuum gap is defined by the cold break down voltage. Based on the numerical modelling, investigation will be performed to see the performance of DC CB with a failure interruption on the first current zero. The simulation results can help to optimize the injection circuit parameters when DC CB has a failure on the first current zero and has to interrupt in the next current zeros. This algorithm will consider predefined threshold of di/dt, chopping current and variable operation time in different scenarios.

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Development of HVDC system-level mechanical circuit breaker model

Liu

Popov

2018

International Journal of Electrical Power & Energy Systems

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Investigation of suppression effect of short-circuit current and voltage drop in multi-terminal HVDC by DC reactor

Cited by 3 publications

References 2 publications

Review of technologies for DC grids – power conversion, flow control and protection

Review of technologies for DC grids – power conversion, flow control and protection

Investigation on the DC CB Performance During a Current Interruption Failure at First Current Zero

Development of HVDC system-level mechanical circuit breaker model

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