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Phase Current Reconstruction of PMSG-Based Three-Phase PWM Rectifiers Using Linear Extended State Observer.

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Title: Phase Current Reconstruction of PMSG-Based Three-Phase PWM Rectifiers Using Linear Extended State Observer.
Authors: Zhu, Pengcheng1,2 (AUTHOR), Vazquez, Sergio1,2 (AUTHOR) sergi@us.es, Galvan, Eduardo1,3 (AUTHOR), Zhang, Ruifang1,3 (AUTHOR), Carrasco, Juan M.1,2 (AUTHOR), Franquelo, Leopoldo G.1,3 (AUTHOR), Xu, Yongxiang2 (AUTHOR), Zou, Jiming2 (AUTHOR)
Source: Energies (19961073). Feb2026, Vol. 19 Issue 3, p847. 18p.
Subject Terms: *Permanent magnet generators, *Electric current rectifiers, *Hardware-in-the-loop simulation, *Observability (Control theory)
Abstract: As a core power supply component of the more electric aircraft (MEA), the reliability of the permanent magnet synchronous generator (PMSG) is of paramount importance. Phase current reconstruction technology can enhance the redundancy of current sensors, thereby improving system reliability. However, owing to the generally high engine speeds in MEAs, the employment of traditional d-axis current–zero control not only induces DC-link voltage fluctuations but also leads to inaccurate DC-link sampling points and distortion in the reconstructed current. In this paper, a lead-angle flux-weakening control strategy is introduced into the PMSG rectification system. This approach guarantees the normal operation of the current loop when the rotational speed exceeds the rated speed of the PMSG, ensuring the accuracy of the sampling points for phase current reconstruction. To further enhance the reconstruction accuracy, a phase current reconstruction technology based on a linear extended state observer (LESO) is proposed. The LESO not only filters the reconstructed current but also ensures that the observer performance remains robust against PMSG parameter perturbations. Finally, the effectiveness of the proposed method is validated through Hardware-in-the-Loop results. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 191587326
AccessLevel: 6
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PubTypeId: academicJournal
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  Label: Title
  Group: Ti
  Data: Phase Current Reconstruction of PMSG-Based Three-Phase PWM Rectifiers Using Linear Extended State Observer.
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  Data: <searchLink fieldCode="AR" term="%22Zhu%2C+Pengcheng%22">Zhu, Pengcheng</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Vazquez%2C+Sergio%22">Vazquez, Sergio</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> sergi@us.es</i><br /><searchLink fieldCode="AR" term="%22Galvan%2C+Eduardo%22">Galvan, Eduardo</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Ruifang%22">Zhang, Ruifang</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Carrasco%2C+Juan+M%2E%22">Carrasco, Juan M.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Franquelo%2C+Leopoldo+G%2E%22">Franquelo, Leopoldo G.</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xu%2C+Yongxiang%22">Xu, Yongxiang</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zou%2C+Jiming%22">Zou, Jiming</searchLink><relatesTo>2</relatesTo> (AUTHOR)
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  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. Feb2026, Vol. 19 Issue 3, p847. 18p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Permanent+magnet+generators%22">Permanent magnet generators</searchLink><br />*<searchLink fieldCode="DE" term="%22Electric+current+rectifiers%22">Electric current rectifiers</searchLink><br />*<searchLink fieldCode="DE" term="%22Hardware-in-the-loop+simulation%22">Hardware-in-the-loop simulation</searchLink><br />*<searchLink fieldCode="DE" term="%22Observability+%28Control+theory%29%22">Observability (Control theory)</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: As a core power supply component of the more electric aircraft (MEA), the reliability of the permanent magnet synchronous generator (PMSG) is of paramount importance. Phase current reconstruction technology can enhance the redundancy of current sensors, thereby improving system reliability. However, owing to the generally high engine speeds in MEAs, the employment of traditional d-axis current–zero control not only induces DC-link voltage fluctuations but also leads to inaccurate DC-link sampling points and distortion in the reconstructed current. In this paper, a lead-angle flux-weakening control strategy is introduced into the PMSG rectification system. This approach guarantees the normal operation of the current loop when the rotational speed exceeds the rated speed of the PMSG, ensuring the accuracy of the sampling points for phase current reconstruction. To further enhance the reconstruction accuracy, a phase current reconstruction technology based on a linear extended state observer (LESO) is proposed. The LESO not only filters the reconstructed current but also ensures that the observer performance remains robust against PMSG parameter perturbations. Finally, the effectiveness of the proposed method is validated through Hardware-in-the-Loop results. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=191587326
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        Value: 10.3390/en19030847
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      – Code: eng
        Text: English
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        PageCount: 18
        StartPage: 847
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      – SubjectFull: Permanent magnet generators
        Type: general
      – SubjectFull: Electric current rectifiers
        Type: general
      – SubjectFull: Hardware-in-the-loop simulation
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      – SubjectFull: Observability (Control theory)
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      – TitleFull: Phase Current Reconstruction of PMSG-Based Three-Phase PWM Rectifiers Using Linear Extended State Observer.
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            NameFull: Zhu, Pengcheng
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            NameFull: Zhang, Ruifang
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            NameFull: Carrasco, Juan M.
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            – D: 01
              M: 02
              Text: Feb2026
              Type: published
              Y: 2026
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            – TitleFull: Energies (19961073)
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