Optimisation of passive system components to minimise DC circuit breaker stresses in multi-terminal HVDC systems

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Page, Frederick and Finney, Stephen and Holliday, Derrick and Xu, Lie and Williams, Barry (2015) Optimisation of passive system components to minimise DC circuit breaker stresses in multi-terminal HVDC systems. In: Cigré International Symposium : Across Borders - HVDC Systems and Market Integration, 2015-05-27 - 2015-05-28.

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Abstract

HVDC circuit breaker designs have commonly included additional series inductance to reduce the rate of rise of current during the initial transient period after a fault occurs, minimising the peak current stress that the circuit breaker must endure. A method of approximating the peak fault current and energy dissipation in a circuit breaker is developed, through circuit analysis of a multi-level converter (MMC) under fault conditions. These approximations are validated against simulation results for an 800kV MMC system

ORCID iDs

Page, Frederick ORCID logoORCID: https://orcid.org/0000-0001-9757-2889, Finney, Stephen ORCID logoORCID: https://orcid.org/0000-0001-5039-3533, Holliday, Derrick ORCID logoORCID: https://orcid.org/0000-0002-6561-4535, Xu, Lie ORCID logoORCID: https://orcid.org/0000-0001-5633-7866 and Williams, Barry;
CORE (COnnecting REpositories)