Space-Vector Pulse Width Modulation for Four-Leg Voltage Source Inverter Under Line-to-Line Short-Circuit Faults
This paper propose a novel space vector pulse-width modulation (SVPWM) to achieve fault tolerance (FT) under line-to-line (LL) short-circuit (SC) conditions for three-phase four-leg (3P4L) inverter. The primary objective of the proposed method is to maintain normal voltage supply to the all phases w...
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2025-01-01
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| Online Access: | https://ieeexplore.ieee.org/document/10964190/ |
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| author | Chang-Gyun An Kyoung-Min Choo |
| author_facet | Chang-Gyun An Kyoung-Min Choo |
| author_sort | Chang-Gyun An |
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| description | This paper propose a novel space vector pulse-width modulation (SVPWM) to achieve fault tolerance (FT) under line-to-line (LL) short-circuit (SC) conditions for three-phase four-leg (3P4L) inverter. The primary objective of the proposed method is to maintain normal voltage supply to the all phases while ensuring that zero voltage is applied to the faulted line during an LL fault. To achieve this, a new coordinate transformation method is introduced to accurately extract the magnitude of unbalanced three-phase voltages. The proposed coordinate transformation handles a three-dimensional (3-D) plane under LL fault, enabling conversion to a two-dimensional (2-D) plane via transformation along the <inline-formula> <tex-math notation="LaTeX">$\gamma $ </tex-math></inline-formula>- axis. This transformation remains effective even under LL fault, ensuring reliable voltage magnitude detection and control through the synchronous reference frame (SRF) transformation. Additionally, an SVPWM switching strategy tailored for fault conditions is developed. By analyzing the 3P4L inverter’s switching vector diagram, a specific combination of switching vectors is proposed to apply zero voltage to the faulted line. The effectiveness of the proposed strategy is validated through experimental results from a 30 kW-class 3P4L inverter. |
| format | Article |
| id | doaj-art-c4747cf40051489a95a8221808359d4e |
| institution | OA Journals |
| issn | 2169-3536 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
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| spelling | doaj-art-c4747cf40051489a95a8221808359d4e2025-08-20T02:27:16ZengIEEEIEEE Access2169-35362025-01-0113667426675110.1109/ACCESS.2025.356054810964190Space-Vector Pulse Width Modulation for Four-Leg Voltage Source Inverter Under Line-to-Line Short-Circuit FaultsChang-Gyun An0Kyoung-Min Choo1https://orcid.org/0000-0001-8817-1848LG Magna e-Powertrain Company Ltd., Incheon, South KoreaKorea Electrotechnology Research Institute, Changwon, South KoreaThis paper propose a novel space vector pulse-width modulation (SVPWM) to achieve fault tolerance (FT) under line-to-line (LL) short-circuit (SC) conditions for three-phase four-leg (3P4L) inverter. The primary objective of the proposed method is to maintain normal voltage supply to the all phases while ensuring that zero voltage is applied to the faulted line during an LL fault. To achieve this, a new coordinate transformation method is introduced to accurately extract the magnitude of unbalanced three-phase voltages. The proposed coordinate transformation handles a three-dimensional (3-D) plane under LL fault, enabling conversion to a two-dimensional (2-D) plane via transformation along the <inline-formula> <tex-math notation="LaTeX">$\gamma $ </tex-math></inline-formula>- axis. This transformation remains effective even under LL fault, ensuring reliable voltage magnitude detection and control through the synchronous reference frame (SRF) transformation. Additionally, an SVPWM switching strategy tailored for fault conditions is developed. By analyzing the 3P4L inverter’s switching vector diagram, a specific combination of switching vectors is proposed to apply zero voltage to the faulted line. The effectiveness of the proposed strategy is validated through experimental results from a 30 kW-class 3P4L inverter.https://ieeexplore.ieee.org/document/10964190/Three-phase four-leg invertergrid-forming convertercurrent-limiting controlfault-tolerancefault ride-throughasymmetrical faults |
| spellingShingle | Chang-Gyun An Kyoung-Min Choo Space-Vector Pulse Width Modulation for Four-Leg Voltage Source Inverter Under Line-to-Line Short-Circuit Faults IEEE Access Three-phase four-leg inverter grid-forming converter current-limiting control fault-tolerance fault ride-through asymmetrical faults |
| title | Space-Vector Pulse Width Modulation for Four-Leg Voltage Source Inverter Under Line-to-Line Short-Circuit Faults |
| title_full | Space-Vector Pulse Width Modulation for Four-Leg Voltage Source Inverter Under Line-to-Line Short-Circuit Faults |
| title_fullStr | Space-Vector Pulse Width Modulation for Four-Leg Voltage Source Inverter Under Line-to-Line Short-Circuit Faults |
| title_full_unstemmed | Space-Vector Pulse Width Modulation for Four-Leg Voltage Source Inverter Under Line-to-Line Short-Circuit Faults |
| title_short | Space-Vector Pulse Width Modulation for Four-Leg Voltage Source Inverter Under Line-to-Line Short-Circuit Faults |
| title_sort | space vector pulse width modulation for four leg voltage source inverter under line to line short circuit faults |
| topic | Three-phase four-leg inverter grid-forming converter current-limiting control fault-tolerance fault ride-through asymmetrical faults |
| url | https://ieeexplore.ieee.org/document/10964190/ |
| work_keys_str_mv | AT changgyunan spacevectorpulsewidthmodulationforfourlegvoltagesourceinverterunderlinetolineshortcircuitfaults AT kyoungminchoo spacevectorpulsewidthmodulationforfourlegvoltagesourceinverterunderlinetolineshortcircuitfaults |