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Title: Digital single voltage loop control of a VSI with LC output filter.
Authors: Souza, Igor Dias Neto de
Almeida, Pedro Machado de
Barbosa, Pedro Gomes
Duque, Carlos Augusto
Ribeiro, Paulo Fernando
Keywords: Voltage source inverter
Active damping
Single voltage loop and modified digital
Resonant controller
Issue Date: 2018
Citation: SOUZA, I. D. N. de et al. Digital single voltage loop control of a VSI with LC output filter. Sustainable Energy, Grids and Networks, v. 16, p. 145-155, 2018. Disponível em: <>. Acesso em: 15 fev. 2019.
Abstract: This paper deals with the output voltage control problem of a three-phase three-wire voltage source Inverter (VSI) with LC output filter. A novel discrete-time active damping technique is proposed in order to damp the filter resonance without the need of current feedback. The method is based on an inner voltage feedback with digital lead compensator on the feedback path. A modified digital resonant controller is also proposed to reject the current harmonic disturbance drawn by nonlinear loads. The resonant controllers are connected in series and the design is based on its zeros damping. Results from a small scale experimental setup are used to validate the proposed control strategy.
ISSN:  23524677
Appears in Collections:DEELT - Artigos publicados em periódicos

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