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A multi-function integrated circuit breaker for DC grid applications

Wang, Sheng, Ming, Wenlong, Liu, Wei, Li, Chuanyue, Ugalde Loo, Carlos and Liang, Jun 2020. A multi-function integrated circuit breaker for DC grid applications. IEEE Transactions on Power Delivery

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Abstract

The protection and current flow regulation of highvoltage direct-current (HVDC) grids requires the deployment of additional semiconductor-based equipment including dc circuit breakers (DCCBs) and current flow controllers (CFCs). However, the inclusion of multiple devices could significantly increase the total cost of an HVDC system. To potentially reduce costs, this paper presents an innovative multi-function integrated DCCB (MF-ICB). The proposed device exhibits a reduced number of semiconductor switches and can fully block dc faults at different locations while regulating dc currents. The configuration of the integrated solution and its operating principle are assessed, with its performance being examined in PSCAD/EMTDC using a three-terminal HVDC grid. Simulation results demonstrate the capability and effectiveness of the MF-ICB to regulate grid current and isolate dc faults.

Item Type: Article
Status: In Press
Schools: Engineering
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
ISSN: 0885-8977
Date of First Compliant Deposit: 30 March 2020
Date of Acceptance: 23 March 2020
Last Modified: 30 Jun 2020 15:01
URI: http://orca.cf.ac.uk/id/eprint/130645

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