Diode Rectifier Configurations with a Multiphase Synchronous GeneratorCitation formats

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Diode Rectifier Configurations with a Multiphase Synchronous Generator. / Zhang, Xiaotao; Apsley, Judith.

In: IET Electric Power Applications, 16.09.2020.

Research output: Contribution to journalArticlepeer-review

Harvard

APA

Zhang, X., & Apsley, J. (Accepted/In press). Diode Rectifier Configurations with a Multiphase Synchronous Generator. IET Electric Power Applications.

Vancouver

Zhang X, Apsley J. Diode Rectifier Configurations with a Multiphase Synchronous Generator. IET Electric Power Applications. 2020 Sep 16.

Author

Zhang, Xiaotao ; Apsley, Judith. / Diode Rectifier Configurations with a Multiphase Synchronous Generator. In: IET Electric Power Applications. 2020.

Bibtex

@article{a06d844ec3e94c93a1cef4b754ccc54f,
title = "Diode Rectifier Configurations with a Multiphase Synchronous Generator",
abstract = "DC power networks are widely used in transport applications, often derived from a synchronous generator and diode rectifier. The use of more than three phases to reduce the DC voltage ripple eliminates the DC filter capacitance andincorporating multiple phases into the generator avoids the need for bulky phase-shifting transformers. Recent trends have moved away from high phase-number machines to multiple winding sets, in order to enhance fault tolerance. This paper shows how the number and arrangement of these phase sets and rectifier circuits should be selected to improve steadystate performance, by suppressing unwanted harmonics. Complex harmonic analysis expressions are developed for the wound field, salient, synchronous generator incorporating both saliency and saturation, allowing general design principlesfor avoiding circulating harmonic currents and high peak diode currents to be identified. The model is validated on a 15-phase, 19kVA laboratory machine, reconfigurable as five 3-phase sets and three 5-phase sets. The results show that for this example, multiple 3-phase, winding sets can give better performance than the high phase-number system, with lower stator copper loss and higher power factor.",
author = "Xiaotao Zhang and Judith Apsley",
year = "2020",
month = sep,
day = "16",
language = "English",
journal = "IET Electric Power Applications",
issn = "1751-8660",
publisher = "Institution of Engineering and Technology ",

}

RIS

TY - JOUR

T1 - Diode Rectifier Configurations with a Multiphase Synchronous Generator

AU - Zhang, Xiaotao

AU - Apsley, Judith

PY - 2020/9/16

Y1 - 2020/9/16

N2 - DC power networks are widely used in transport applications, often derived from a synchronous generator and diode rectifier. The use of more than three phases to reduce the DC voltage ripple eliminates the DC filter capacitance andincorporating multiple phases into the generator avoids the need for bulky phase-shifting transformers. Recent trends have moved away from high phase-number machines to multiple winding sets, in order to enhance fault tolerance. This paper shows how the number and arrangement of these phase sets and rectifier circuits should be selected to improve steadystate performance, by suppressing unwanted harmonics. Complex harmonic analysis expressions are developed for the wound field, salient, synchronous generator incorporating both saliency and saturation, allowing general design principlesfor avoiding circulating harmonic currents and high peak diode currents to be identified. The model is validated on a 15-phase, 19kVA laboratory machine, reconfigurable as five 3-phase sets and three 5-phase sets. The results show that for this example, multiple 3-phase, winding sets can give better performance than the high phase-number system, with lower stator copper loss and higher power factor.

AB - DC power networks are widely used in transport applications, often derived from a synchronous generator and diode rectifier. The use of more than three phases to reduce the DC voltage ripple eliminates the DC filter capacitance andincorporating multiple phases into the generator avoids the need for bulky phase-shifting transformers. Recent trends have moved away from high phase-number machines to multiple winding sets, in order to enhance fault tolerance. This paper shows how the number and arrangement of these phase sets and rectifier circuits should be selected to improve steadystate performance, by suppressing unwanted harmonics. Complex harmonic analysis expressions are developed for the wound field, salient, synchronous generator incorporating both saliency and saturation, allowing general design principlesfor avoiding circulating harmonic currents and high peak diode currents to be identified. The model is validated on a 15-phase, 19kVA laboratory machine, reconfigurable as five 3-phase sets and three 5-phase sets. The results show that for this example, multiple 3-phase, winding sets can give better performance than the high phase-number system, with lower stator copper loss and higher power factor.

M3 - Article

JO - IET Electric Power Applications

JF - IET Electric Power Applications

SN - 1751-8660

ER -