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Modeling and frequency analysis of a dual H-bridge current flow controller in meshed HVDC systems

Liu, Wei, Liang, Jun, Ugalde Loo, Carlos and Li, Gen 2019. Modeling and frequency analysis of a dual H-bridge current flow controller in meshed HVDC systems. Presented at: EPE'19 ECCE Europe, 21st European Conference on Power Electronics and Applications, Genova, Italy, 2-6 September 2019.

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Abstract

This paper investigates the modeling and operation of dual H-bridge current flow controllers (CFCs) in meshed high-voltage direct-current (HVDC) systems. Two operating modes of the CFC device, namely the ‘buck mode’ and the ‘boost mode’, are defined and analyzed. Small-signal models of the dual H-bridge CFC are derived in the s-domain for each operating mode. A frequency sweep procedure is carried out using PSIM to obtain frequency domain representations of the CFC to verify the validity and accuracy of the small-signal models. The dynamic performance of the dual H-bridge CFC is verified through time-domain simulations conducted in PSCAD/EMTDC.

Item Type: Conference or Workshop Item (Paper)
Status: In Press
Schools: Engineering
Date of First Compliant Deposit: 30 July 2019
Last Modified: 09 Aug 2019 12:25
URI: http://orca.cf.ac.uk/id/eprint/124596

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