High frequency interruption characteristics of VCB and its application to high voltage DC circuit breaker

Tokoyoda, Sho; Sato, Masaharu; Kamei, Kenji; Yoshida, Daisuke; Miyashita, Mitsuru; Kikuchi, K.; Ito, Hiroaki

doi:10.1109/icepe-st.2015.7368353

Cited by 33 publications

(15 citation statements)

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“…Greenwood and Lee [3] discussed the effects of reducing both rate of rise of current before and rate of rise of voltage after zero crossing on a theoretical basis. Experimental data supporting the hypothesis that a SI influences the interruption performance of VCBs has been published by several authors [13,14,17,18]. A comprehensive study by Yanabu et al [14] shows the impact of different SIs on rate of change of current and voltage around zero crossing.…”

Section: Introductionmentioning

confidence: 64%

Improving interruption performance of mechanical circuit breakers by controlling pre‐current‐zero wave shape

et al. 2019

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Mechanical circuit breakers (MCBs) are the limiting component for current injection HVDC circuit breakers. Improving their interruption performance reduces requirements for capacitance and inductance needed in the injection circuit and thus space use and costs. Higher performance can be achieved by creating a period of low current gradient before zero crossing in the MCB, e.g. by using a saturable inductor (SI). In this paper, the impact of duration and steepness during the low currentgradient phase is linked to arc parameters of the investigated model gas circuit breaker. It is shown in a scaled experimental setup that an optimum design of the SI can be derived from arc time constant and interruption limits for constant current gradients. This optimisation results in a considerable increase of interruption performance. The feasibility of implementing an SI in a full-scale HVDC circuit breaker is demonstrated using simulations. Using an improved injection scheme, the stresses for the MCB can be reduced significantly. Consequently, the injection circuit components can be scaled down, making the topology more economical. The reduced interruption requirements might also make it possible to use a single gas interrupter instead of a series connection of vacuum interrupters, reducing the complexity of the mechanical switch.

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Section: Introductionmentioning

confidence: 64%

Improving interruption performance of mechanical circuit breakers by controlling pre‐current‐zero wave shape

et al. 2019

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“…The total opening velocity for equivalent dielectric withstand capability in n modules, , can be calculated by the same principle (17), (18). 1 is the opening velocity in a single VI.…”

Section: Varc DC Cb Using Series Connected Modulesmentioning

confidence: 99%

Modeling, Experimental Validation, and Application of VARC HVDC Circuit Breakers

Liu

Popov

Mirhosseini

et al. 2020

IEEE Trans. Power Delivery

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This paper deals with the modelling, hardware results and model validation by measurements of a VSC assisted resonant current (VARC) dc circuit breaker (CB) and the application within a future network by simulation. The newly emerging VARC dc CB can be used as a solution for the protection of offshore multi-terminal HVDC (MTDC) grids. In this paper, the proposed VARC dc CB is modelled in detail in a PSCAD environment, by taking into account dielectric strength of the vacuum gap, high-frequency current quenching ability and parasitic components. The PSCAD-model is then verified by data from the testing of a 27 kV VARC dc CB prototype with maximum current interruption capability of 10 kA. Additionally, the initial transient interruption voltage and current slope at zero-crossing during the interruption are analyzed. With respect to scaling to a higher voltage level, three types of series connected modules are presented and the performances are compared. The performance of the series connected modules is simulated in a model of a 4-terminal HVDC grid. The obtained results validate the VARC dc CB as a promising solution for the dc fault isolation in MTDC grids. Index Terms-HVDC circuit breaker, VARC, PSCAD, circuit breaker performance, HVDC grid, transient analysis. I. INTRODUCTION HE integration of sustainable and renewable technologies is changing the existing transmission system [1]. Significant progress has been made toward the development of Voltage Source Converters (VSCs) in the last few years, which enable meshed HVDC grid to provide a promising This work has received funding from the European Commission under project 691714-PROMOTioN (Progress on Meshed HVDC Offshore Transmission Networks) through Horizon 2020 program."

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“…There are two major technical schemes based on the inserted MOV principle that have been applied so far. The first scheme is what is commonly referred to as the traditional mechanical DCCB [14–16]. The second one is the Hybrid DCCB proposed by ABB in 2011 [17–19].…”

Section: DC Circuit Breakers Based On Inserted Movmentioning

confidence: 99%

Two basic ways to realise DC circuit breakers

Xiao

2018

J. eng.

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High frequency interruption characteristics of VCB and its application to high voltage DC circuit breaker

Cited by 33 publications

References 1 publication

Improving interruption performance of mechanical circuit breakers by controlling pre‐current‐zero wave shape

Improving interruption performance of mechanical circuit breakers by controlling pre‐current‐zero wave shape

Modeling, Experimental Validation, and Application of VARC HVDC Circuit Breakers

Two basic ways to realise DC circuit breakers

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