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

Authors: K Vinothkumar; Inger Segerqvist; Niclas Johannesson; Arman Hassanpoor;

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

Abstract

Voltage source converters (VSC) are increasingly being used in high voltage direct current (HVDC) systems and with higher power ratings of these converters, the interest for usage with long transmission system is also increasing. With long overhead transmission dc links, many faults would be transient or temporary in nature. Such faults are mainly caused by lightning. The objective of this paper lies in proposing and implementing an auto-reclose feature to the operation of Hybrid HVDC breaker (HHB). The proposed method has been evaluated in a point-to-point HVDC link along with HHB at each end. This study shows that the proposed sequential operation of HHB can quickly and cost-effectively re-close the faulty line with minimal impact on connected ac grid and where the converters can continue to support the ac network with reactive power. Furthermore, the proposed soft start procedure adopted in auto-reclosing operation of HHB assists in reducing the dc current inrush and distribute the energy stress among the non-linear resistors in the main breaker modules of HHB.

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    popularity
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    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
29
Top 10%
Top 10%
Top 10%
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