Proportional Resonant Current Control and Output-Filter Design Optimization for Grid-Tied Inverters Using Grey Wolf Optimizer

João Faria, João Fermeiro, José Pombo, Maria Calado and Sílvio Mariano
Additional contact information
João Faria: Instituto de Telecomunicações, Universidade da Beira Interior, Covilhã 6201-001, Portugal
João Fermeiro: Instituto de Telecomunicações, Universidade da Beira Interior, Covilhã 6201-001, Portugal
José Pombo: Instituto de Telecomunicações, Universidade da Beira Interior, Covilhã 6201-001, Portugal
Maria Calado: Instituto de Telecomunicações, Universidade da Beira Interior, Covilhã 6201-001, Portugal
Sílvio Mariano: Instituto de Telecomunicações, Universidade da Beira Interior, Covilhã 6201-001, Portugal

Energies, 2020, vol. 13, issue 8, 1-18

Abstract: This paper proposes a new method for the simultaneous determination of the optimal control parameters of proportional resonant controllers and the optimal design of the output filter of a grid-tied three-phase inverter. The proposed method, based on the grey wolf optimization (GWO) algorithm, addresses both optimization problems as a single process to achieve a better system frequency response. It optimizes the unknown parameters by using a fitness function to find the best trade-off between the following fundamental terms: the harmonic attenuation rate; the power loss, through the damping resistor; and the current tracking error in the stationary frame, ensuring the system and grid stability. To validate the proposed optimization methodology, two case studies are considered with different output filter topologies with passive damping methods. The results obtained from the proposed optimization procedure were analyzed and discussed according to the fitness function terms.

Keywords: grid-tied inverter; grey wolf optimizer; PR controllers; LCL filter; passive damping (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

Downloads: (external link)
https://www.mdpi.com/1996-1073/13/8/1923/pdf (application/pdf)
https://www.mdpi.com/1996-1073/13/8/1923/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:13:y:2020:i:8:p:1923-:d:345330

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().