HVDC Fault Current Interruption Technology

Smeets, R.P.P.; Belda, Nadew Adisu

doi:10.1109/icepe-st.2019.8928716

Cited by 9 publications

(2 citation statements)

References 16 publications

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“…As these currents flow through the MFBs, the current rating of MFB1 and MFB2 should be no less than 1 − ( 2 ) and 2 − ( 2 ). Although (12) and (13) have been derived using a three-node ICB, they can be easily extended for a device with n nodes. For an n-node ICB with a fault occurring at node j, the total susceptance of the healthy nodes is expressed as…”

Section: Icb Analysis and Component Sizing A Component Sizingmentioning

confidence: 99%

“…A fast mechanical switch can then open within 5-10 ms [10], [11]. This type of DCCBs, together with HCBs, have been considered for the Zhangbei HVDC system [12]. SSCBs can immediately block a fault; however, their conduction losses are unacceptably high due to the deployment of a large number of semiconductor switches in the current path [13], [14].…”

Section: Introductionmentioning

confidence: 99%

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A Low-Loss Integrated Circuit Breaker for HVDC Applications

Wang

Ming

Ugalde‐Loo

et al. 2022

IEEE Trans. Power Delivery

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Hybrid dc circuit breakers (HCBs) are recognized as suitable devices for protecting high-voltage direct-current (HVDC) systems, along with other dc circuit breakers (DCCB). However, compared to mechanical circuit breakers, HCBs exhibit higher conduction losses. Such losses are inevitable under no-fault conditions as current may flow through some of the semiconductor switches. An integrated circuit breaker (ICB) minimizing these losses is presented in this paper, and this is achieved by replacing semiconductor switches by mechanical components in the current path. For completeness, the topology design, operating sequence and a mathematical analysis for component sizing of the device are provided. In addition, an estimation of the conduction losses is quantified. It is estimated that the power losses of an ICB are 2 to 30% of an HCB only. The ICB has been implemented in PSCAD/EMTDC to demonstrate its effectiveness for isolating dc faults, with simulations conducted on a three-terminal HVDC grid.

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Section: Icb Analysis and Component Sizing A Component Sizingmentioning

confidence: 99%