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1733 / 2020-09-29 17:52:02
Research on Saturation Characteristics and Modeling Method for Transformer Based on J-A Model
HVDC, saturation, Jiles-Atherton model, harmonic, transformer
Electric Machine Design and Control > Other topics in electric machine
终稿
Liu Qingsong / CSG EHV Power Transmission Company
 In recent years, with the rapid development of high voltage direct current transmission (HVDC) in China, the saturation problem of transformers has gradually become a hot spot. To study the internal characteristics of the transformer when saturated. Firstly, the magnetization branch of transformer is established based on the Jiles-Atherton(J-A) model. Then a three-phase transformer model considering saturation is established in MATLAB, and the model is used to analyze the harmonic changes of excitation current and the winding current under different load conditions by injecting DC into the neutral point. The result shows that the core is half-cycle saturated after the injection of DC, the current distort  ion of the primary winding is mainly related to the excitation current, which is manifested by even harmonics that increase rapidly and the phase core with more direct current intrusion is more saturated.

 
重要日期

  • 会议日期

    11月02日

    2020

    至

    11月04日

    2020

  • 10月27日 2020

    初稿截稿日期

  • 11月03日 2020

    报告提交截止日期

  • 11月04日 2020

    注册截止日期

  • 11月17日 2020

    终稿截稿日期

主办单位
IEEE IAS Student Chapter of Huazhong University of Science and Technology (HUST)
承办单位
Huazhong University of Science and Technology
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