An Enhanced State Observer for DC-Link Voltage Control of Three- Phase AC/DC Converters

Jinghang Lu, Saeed Golestan, Mehdi Savaghebi, Juan Carlos Vasquez Quintero, Josep M. Guerrero, Albert Marzabal

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Abstract

To regulate the DC-link voltage of three-phase AC/DC converters, an enhanced state observer (ESO)-based controller is presented in this letter. The proposed controller, contrary to the traditional ones, does not require the DClink current measurement and offers a “plug and play” capability, a rather high disturbance rejection ability and robustness against the DC-link capacitance parameter variation. The design procedure of the suggested controller is discussed, and its effectiveness is verified using experimental results.
Original languageEnglish
JournalIEEE Transactions on Power Electronics
Volume33
Issue number2
Pages (from-to)936 - 942
ISSN0885-8993
DOIs
Publication statusPublished - Feb 2018
Externally publishedYes

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