Optimization and Implementation of the Proportional-Resonant Controller for Grid-Connected Inverter with Significant Computation Delay

Oleksandr Husev, Carlos Roncero-Clemente, Elena Makovenko, Sergio Pires Pimentel, Dmitri Vinnikov, João Martins

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

Abstract

This paper describes the tuning process of the proportional-resonant controller, taking into account the significant computational delay from the digital control system. Different structures of the controller and related contradicting results are discussed. Particular attention is paid to the stability domain and its dependence on different parameters of the proportional-resonant controller. The main outcome of this paper consists in the tuning approach guidelines for selection of controller parameters in case of significant digital system delay. An optimal controller structure and start-up current optimization are proposed. All results are confirmed by simulation and experimental setup.

Original languageEnglish
Article number8643086
Pages (from-to)1201-1211
Number of pages11
JournalIEEE Transactions on Industrial Electronics
Volume67
Issue number2
DOIs
Publication statusPublished - Feb 2020

Keywords

  • DC-AC inverter
  • digital control
  • proportional-resonant controller

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