Design and performance evaluation of a hybrid active power filter controller

Herman, Leopold (author), Knez, Klemen (author), Blažič, Boštjan (author)

This paper introduces a novel hybrid filter topology that combines passive and active components to enhance harmonic filtering and resonance damping in electrical power systems. The design integrates a three-phase two-level voltage-source converter with a double-tuned passive filter in parallel, significantly reducing the power rating and operational costs while maintaining good harmonic filtering performance and reactive current compensation. Double-tuned passive filters, compared to single-tuned ones, offer improved harmonic attenuation at multiple frequencies, enhancing overall system efficiency. Moreover, when used with the proposed hybrid filter topology, the double-tuned version allows for even lower dimensions of the active part, thereby further reducing system cost. A state-feedback controller is designed to enhance the performance of the hybrid filter, proving particularly effective in environments with complex impedance conditions. This paper also examines the impact of variations in passive component parameters, demonstrating the design’s robustness against potential deviations expected over the operational lifespan. The results indicate that the hybrid filter effectively mitigates harmonics and maintains operational stability under various transient conditions, as confirmed by analytical and simulation studies on a real industrial network model. These findings underline the hybrid filter’s potential to significantly improve power quality in modern electrical networks.

• Language: English
• Keywords: hybrid active power filters, harmonic filtering, resonance damping, state-feedback control, power quality improvement
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FE - Faculty of Electrical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2024
• Number of pages: 31. str.
• Numbering: Vol. 17, iss. 11, [article no.] 2492
• PID: 20.500.12556/RUL-158202
• UDC: 621.31
• ISSN on article: 1996-1073
• DOI: 10.3390/en17112492
• COBISS.SI-ID: 196347139
• Publication date in RUL: 29.05.2024

HERMAN, Leopold, KNEZ, Klemen and BLAŽIČ, Boštjan, 2024, Design and performance evaluation of a hybrid active power filter controller. Energies [online]. 2024. Vol. 17, no. 11,  2492. [Accessed 9 June 2025]. DOI 10.3390/en17112492. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=158202

Record is a part of a journal

• Title: Energies
• Shortened title: Energies
• Publisher: Molecular Diversity Preservation International
• ISSN: 1996-1073
• COBISS.SI-ID: 518046745

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: hibridni filter, filtriranje harmonikov, dušenje resonanc, povratna vezava stanja, izboljšanje kakovosti električne energije

Projects

• Funder: ARIS - Slovenian Research and Innovation Agency
• Project number: P2-0356
• Name: Elektroenergetski sistemi