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This paper compares how a dc fault affects a multiterminal dc (MTdc) network depending on the HVDC transmission system topology. To this end, a six-step methodology is proposed for the selection of the necessary dc fault protection measures. The network consists of four voltage-source converters converters radially connected. The converters natural fault response to a dc fault for the different topologies...
In multi-terminal dc networks (MTdc) reactors are required to limit the rate of rise and the peak values of the fast developing currents in case of a dc fault. In this way, dc breakers have more time to isolate a fault and the system can restore its post-fault operation. This paper proposes a methodology to optimize the design of limiting reactors used for the protection of voltage-source converter...
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