Low-Cost Active Power Filter Using Four-Switch Three-Phase Inverter Scheme

Shunt active power filters (SAPFs) have been around for a long time. They improve the quality of a current drawn from the grid when feeding non-linear loads formed by old-fashioned power electronic converters such as uncontrolled and controlled rectifiers. Most SAPFs are implemented using the well-k...

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Main Author: Mohamed Azab
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Electricity
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Online Access:https://www.mdpi.com/2673-4826/6/1/16
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author Mohamed Azab
author_facet Mohamed Azab
author_sort Mohamed Azab
collection DOAJ
description Shunt active power filters (SAPFs) have been around for a long time. They improve the quality of a current drawn from the grid when feeding non-linear loads formed by old-fashioned power electronic converters such as uncontrolled and controlled rectifiers. Most SAPFs are implemented using the well-known six-switch three-phase inverter (SSTPI) topology. This paper investigates the capability of adopting the four-switch three-phase inverter (FSTPI) scheme to develop low-cost SAPFs, mainly for low-power ranges. The performance of the proposed SAPF using the FSTPI topology is compared with the conventional scheme of an SAPF formed by the six-switch three-phase inverter (SSTPI) topology. Qualitative and quantitative analyses are conducted. The performance of the proposed FSTPI-based SAPF is investigated under different loading conditions. The obtained results indicate the validity and effectiveness of the FSTPI scheme in improving the quality of currents drawn from the AC grid. The SAPF scheme investigated is also feasible and results in cost reduction when the SAPF power circuit is constructed with modern WBG devices, such as SiC-based MOSFETs, which are relatively expensive (approximately three times the price of the equivalent Si IGBTs).
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spelling doaj-art-c8d3e3ede44c46de8d0d712e36daf50e2025-08-20T03:43:15ZengMDPI AGElectricity2673-48262025-03-01611610.3390/electricity6010016Low-Cost Active Power Filter Using Four-Switch Three-Phase Inverter SchemeMohamed Azab0Electrical Engineering Department, Yanbu Industrial College, Yanbu 46452, Saudi ArabiaShunt active power filters (SAPFs) have been around for a long time. They improve the quality of a current drawn from the grid when feeding non-linear loads formed by old-fashioned power electronic converters such as uncontrolled and controlled rectifiers. Most SAPFs are implemented using the well-known six-switch three-phase inverter (SSTPI) topology. This paper investigates the capability of adopting the four-switch three-phase inverter (FSTPI) scheme to develop low-cost SAPFs, mainly for low-power ranges. The performance of the proposed SAPF using the FSTPI topology is compared with the conventional scheme of an SAPF formed by the six-switch three-phase inverter (SSTPI) topology. Qualitative and quantitative analyses are conducted. The performance of the proposed FSTPI-based SAPF is investigated under different loading conditions. The obtained results indicate the validity and effectiveness of the FSTPI scheme in improving the quality of currents drawn from the AC grid. The SAPF scheme investigated is also feasible and results in cost reduction when the SAPF power circuit is constructed with modern WBG devices, such as SiC-based MOSFETs, which are relatively expensive (approximately three times the price of the equivalent Si IGBTs).https://www.mdpi.com/2673-4826/6/1/16active power filtershunt active power filterAPFSAPFfour-switch inverterFSTPI
spellingShingle Mohamed Azab
Low-Cost Active Power Filter Using Four-Switch Three-Phase Inverter Scheme
Electricity
active power filter
shunt active power filter
APF
SAPF
four-switch inverter
FSTPI
title Low-Cost Active Power Filter Using Four-Switch Three-Phase Inverter Scheme
title_full Low-Cost Active Power Filter Using Four-Switch Three-Phase Inverter Scheme
title_fullStr Low-Cost Active Power Filter Using Four-Switch Three-Phase Inverter Scheme
title_full_unstemmed Low-Cost Active Power Filter Using Four-Switch Three-Phase Inverter Scheme
title_short Low-Cost Active Power Filter Using Four-Switch Three-Phase Inverter Scheme
title_sort low cost active power filter using four switch three phase inverter scheme
topic active power filter
shunt active power filter
APF
SAPF
four-switch inverter
FSTPI
url https://www.mdpi.com/2673-4826/6/1/16
work_keys_str_mv AT mohamedazab lowcostactivepowerfilterusingfourswitchthreephaseinverterscheme