A Reduced-Order Generalized Proportional Integral Observer-based Resonant Super-twisting Sliding Mode Control for Grid-Connected Power Converters

Jinghang Lu, Mehdi Savaghebi*, Amer Mohammad Yusuf Mohammad Ghias, Xiaochao Hou, Josep M. Guerrero

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

This article presents a reduced-order generalized proportional-integral observer based resonant super-twisting sliding mode controller (RST-SMC) for the three-phase ac-dc converters. On the contrary to utilizing the proportional-integral controller in regulating the dc-link voltage, which may cause large undershoot/overshoot under the disturbance, the proposed voltage control strategy for the dc-link has high disturbance rejection ability and the settling time has been greatly reduced. In addition, the proposed RST-SMC in the current control loop not only preserve the merits of the sliding mode controller but also achieve the current tracking without steady-state error in the stationary \alpha - \beta frame. The effectiveness of the proposed method has been verified by a lab-constructed experimental prototype.

Original languageEnglish
JournalI E E E Transactions on Industrial Electronics
Volume68
Issue number7
Pages (from-to)5897-5908
ISSN0278-0046
DOIs
Publication statusPublished - 7. Jul 2021

Keywords

  • Disturbance rejection
  • reduced-order generalized proportional-integral observer (RGPIO)
  • sliding mode control (SMC)
  • three-phase converter

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