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Field-Circuit Coupled Modelling of Superconducting Cable for Positive and Zero Sequence Impedance Analysis
ID：430 View Protection：ATTENDEE Updated Time：2022-05-21 15:55:20 Hits：283 Poster Presentation

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Abstract
This paper presents a simulation analysis method for the sequence impedance of three-phase cold insulated superconducting cable based on the field-circuit coupling model. In this model, the induced electric field of screening layer is calculated by the magnetic field model, and the time domain current in the superconducting cable is calculated by the circuit model. Then, the positive sequence and zero sequence impedance of the superconducting cable circuit are calculated. The simulation results are as follows: for the positive sequence impedance, under the same structural parameters, the positive sequence impedance of the superconducting cable is half of the conventional cable; When the screening coefficient of the superconducting screen is 80% ~  90%, the positive sequence reactance increases by 18% ~ 35%. For the zero sequence impedance, it is about 5 times of the positive sequence impedance, which is slightly greater than the handbook recommended value X 0 ≈ ( 3.5 ~ 4.6 ) X 1 . When the screening coefficient of the superconducting screen is 80% ~90%, the zero sequence impedance increases by 2.8 ~ 5 times.
 
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Speaker
张会明
Senior Engineer 中国电力科学研究院有限公司

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Important Date

  • Conference Date

    May 27

    2022

    to

    May 29

    2022

  • Feb 28 2022

    Draft paper submission deadline

  • May 29 2022

    Registration deadline

  • Jun 22 2022

    Contribution Submission Deadline

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