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Conference Papers Year : 2012

Modular Multilevel Converter leg-energy controller in rotating reference frame for voltage oscillations reduction

Abstract

This work consists of the presentation of a regulation strategy capable of controlling the energy stored in the DC capacitors of the upper and lower arms of a Modular Multilevel Converter (MMC) for each phase. This is achieved by regulating the positive, negative and zero sequences in dqo coordinates of the differential current using a rotating reference frame at twice the fundamental value. Active and reactive components of the differential current are used to eliminate the oscillations of the three-phased leg-energy which reduces significantly the capacitor voltage oscillations, while the zero sequence component is used to regulate the whole system energy at a given value. All feed-forwards equations are demonstrated, and cross-coupled leg-energy terms are introduced.
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Dates and versions

hal-00764825 , version 1 (13-12-2012)

Identifiers

Cite

Gilbert Bergna Diaz, Jean-Claude Vannier, Pierre Lefranc, Amir Arzandé, E. Berne, et al.. Modular Multilevel Converter leg-energy controller in rotating reference frame for voltage oscillations reduction. 2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG), Jun 2012, Aalborg, Denmark. pp.698-703, ⟨10.1109/PEDG.2012.6254078⟩. ⟨hal-00764825⟩
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