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Design and Implementation of a High-Efficiency T-Type Three-Level Inverter for Interior Permanent Magnet Synchronous Motor Drive Systems †.

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Title: Design and Implementation of a High-Efficiency T-Type Three-Level Inverter for Interior Permanent Magnet Synchronous Motor Drive Systems †.
Authors: Huang, Chang-Rui1 (AUTHOR), Chang, Yuan-Chih1 (AUTHOR) ycchang@ee.nthu.edu.tw, Lin, Po-Yu1 (AUTHOR)
Source: Energies (19961073). Sep2026, Vol. 19 Issue 17, p4163. 19p.
Subject Terms: *Pulse width modulation, *Electric inverters, *Electric drives, *Brushless electric motors, *Wide gap semiconductors, *Digital signal processing, *Field orientation principle
Abstract: This study presents a high-efficiency T-type three-level inverter for interior permanent magnet synchronous motor (IPMSM) drive applications, featuring a comprehensive performance comparison with a conventional two-level inverter. To address the high switching losses and noticeable harmonic distortion typically associated with conventional two-level configurations, the T-type architecture is developed and evaluated. First, PLECS simulations are conducted to verify the proposed dual-loop control architecture, which integrates field-oriented control (FOC), space-vector pulse-width modulation (SVPWM), and a neutral-point voltage balancing mechanism. Subsequently, a 2.2 kW experimental platform is constructed using silicon carbide (SiC) wide-bandgap (WBG) semiconductor devices. To characterize the dynamic switching behavior of the adopted SiC MOSFETs, a dedicated double-pulse test (DPT) platform is developed to evaluate their switching losses and determine appropriate gate-drive parameters. In addition, the digital control firmware is implemented on a digital signal processor (DSP) platform. The dual-loop control algorithms, SVPWM strategy, and two-layer protection framework are implemented as real-time executable routines, enabling close integration of the control software and hardware platform. Finally, motor drive experiments at switching frequencies of 20 kHz and 40 kHz are performed to validate the proposed system. The experimental results demonstrate that the developed architecture significantly reduces phase-current total harmonic distortion (THD) and improves overall energy conversion efficiency compared with a conventional two-level inverter, confirming its potential for high-efficiency next-generation electric vehicle applications. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 197040644
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Design and Implementation of a High-Efficiency T-Type Three-Level Inverter for Interior Permanent Magnet Synchronous Motor Drive Systems †.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Huang%2C+Chang-Rui%22">Huang, Chang-Rui</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chang%2C+Yuan-Chih%22">Chang, Yuan-Chih</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> ycchang@ee.nthu.edu.tw</i><br /><searchLink fieldCode="AR" term="%22Lin%2C+Po-Yu%22">Lin, Po-Yu</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. Sep2026, Vol. 19 Issue 17, p4163. 19p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Pulse+width+modulation%22">Pulse width modulation</searchLink><br />*<searchLink fieldCode="DE" term="%22Electric+inverters%22">Electric inverters</searchLink><br />*<searchLink fieldCode="DE" term="%22Electric+drives%22">Electric drives</searchLink><br />*<searchLink fieldCode="DE" term="%22Brushless+electric+motors%22">Brushless electric motors</searchLink><br />*<searchLink fieldCode="DE" term="%22Wide+gap+semiconductors%22">Wide gap semiconductors</searchLink><br />*<searchLink fieldCode="DE" term="%22Digital+signal+processing%22">Digital signal processing</searchLink><br />*<searchLink fieldCode="DE" term="%22Field+orientation+principle%22">Field orientation principle</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This study presents a high-efficiency T-type three-level inverter for interior permanent magnet synchronous motor (IPMSM) drive applications, featuring a comprehensive performance comparison with a conventional two-level inverter. To address the high switching losses and noticeable harmonic distortion typically associated with conventional two-level configurations, the T-type architecture is developed and evaluated. First, PLECS simulations are conducted to verify the proposed dual-loop control architecture, which integrates field-oriented control (FOC), space-vector pulse-width modulation (SVPWM), and a neutral-point voltage balancing mechanism. Subsequently, a 2.2 kW experimental platform is constructed using silicon carbide (SiC) wide-bandgap (WBG) semiconductor devices. To characterize the dynamic switching behavior of the adopted SiC MOSFETs, a dedicated double-pulse test (DPT) platform is developed to evaluate their switching losses and determine appropriate gate-drive parameters. In addition, the digital control firmware is implemented on a digital signal processor (DSP) platform. The dual-loop control algorithms, SVPWM strategy, and two-layer protection framework are implemented as real-time executable routines, enabling close integration of the control software and hardware platform. Finally, motor drive experiments at switching frequencies of 20 kHz and 40 kHz are performed to validate the proposed system. The experimental results demonstrate that the developed architecture significantly reduces phase-current total harmonic distortion (THD) and improves overall energy conversion efficiency compared with a conventional two-level inverter, confirming its potential for high-efficiency next-generation electric vehicle applications. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=197040644
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.3390/en19174163
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 19
        StartPage: 4163
    Subjects:
      – SubjectFull: Pulse width modulation
        Type: general
      – SubjectFull: Electric inverters
        Type: general
      – SubjectFull: Electric drives
        Type: general
      – SubjectFull: Brushless electric motors
        Type: general
      – SubjectFull: Wide gap semiconductors
        Type: general
      – SubjectFull: Digital signal processing
        Type: general
      – SubjectFull: Field orientation principle
        Type: general
    Titles:
      – TitleFull: Design and Implementation of a High-Efficiency T-Type Three-Level Inverter for Interior Permanent Magnet Synchronous Motor Drive Systems †.
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            NameFull: Huang, Chang-Rui
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          Name:
            NameFull: Chang, Yuan-Chih
      – PersonEntity:
          Name:
            NameFull: Lin, Po-Yu
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          Dates:
            – D: 01
              M: 09
              Text: Sep2026
              Type: published
              Y: 2026
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              Value: 19961073
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              Value: 19
            – Type: issue
              Value: 17
          Titles:
            – TitleFull: Energies (19961073)
              Type: main
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