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The star-switched MMC (SSMMC): a hybrid VSC for HVDC applications

Woldegiorgis, Dereje Lemma; Outram, John; Amankwah, Emmanuel K.; Trainer, David; Clare, Jon C.

Authors

Dereje Lemma Woldegiorgis

John Outram

Emmanuel K. Amankwah ezzea@exmail.nottingham.ac.uk

David Trainer

Jon C. Clare jon.clare@nottingham.ac.uk



Abstract

This paper presents a new hybrid VSC topology (the Star-Switched MMC) – suitable for HVDC applications. The basic structure and operating principles of the topology are described. Control strategies that regulate the power exchanged between the VSC, the AC network and the DC network are presented. A modulation strategy ensuring appropriate switching of the individual chain-link sub-modules and a capacitor voltage balancing algorithm that ensures the capacitor voltages are maintained within the required tolerance are discussed. Results from a simulation model are presented to validate the expected performance of the converter and the proposed control schemes.

Publication Date Apr 20, 2016
Peer Reviewed Peer Reviewed
APA6 Citation Woldegiorgis, D. L., Outram, J., Amankwah, E. K., Trainer, D., & Clare, J. C. (2016). The star-switched MMC (SSMMC): a hybrid VSC for HVDC applications
Keywords HVDC, modular multilevel, Efficiency, Capacitor voltage control, Offshore
Publisher URL http://ieeexplore.ieee.org/document/7739331/
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf
Additional Information © 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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