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Consideration of the Insulation Design Method on a ±200 kV Converter Valve Unit in an HVDC Converter Hall

Author

Listed:
  • Seungmin Bang

    (Department of Electrical and Electronic Engineering, Hanyang University, Ansan-si 15588, Korea)

  • Ho-Seung Kim

    (Department of Electrical and Electronic Engineering, Hanyang University, Ansan-si 15588, Korea)

  • Jae-Hong Koo

    (Transmission and Substation Lab, KEPRI, Daejeon 34056, Korea)

  • Bang-Wook Lee

    (Department of Electrical and Electronic Engineering, Hanyang University, Ansan-si 15588, Korea)

Abstract

A converter valve unit, which converts Alternating Current (AC) to Directing Current (DC) and DC to AC, is one of the key elements of high voltage direct current (HVDC) transmission. The insulation design of a converter valve unit should be considered for air clearance according to the DC superimposed overvoltage and the insulator that maintains the insulation performance and the corona shield to suppress DC corona discharge. There is no prescribed standard for the insulation design of a converter valve unit. Moreover, insulation performance under an applied DC voltage has not yet been thoroughly investigated. Therefore, it is necessary to study the insulation design method of the converter valve unit. In this paper, consideration of the insulation design method on a ±200 kV converter valve unit in an HVDC converter hall is performed. The finite element method (FEM) is used to simulate the 3D model. Additionally, the safety factor ( S F ) is applied in accordance with the dielectric test in IEC 62271-1. As a result, an insulation design process on the converter valve unit is proposed and the insulation design is carried through the design factors. It is confirmed that design factors on the air clearance, insulator and corona shield have a significant effect on a highly reliable insulation design.

Suggested Citation

  • Seungmin Bang & Ho-Seung Kim & Jae-Hong Koo & Bang-Wook Lee, 2021. "Consideration of the Insulation Design Method on a ±200 kV Converter Valve Unit in an HVDC Converter Hall," Energies, MDPI, vol. 14(8), pages 1-18, April.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:8:p:2296-:d:539021
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    Citations

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    Cited by:

    1. Seungmin Bang & Hyun-Woo Lee & Bang-Wook Lee, 2021. "Real-Time Monitoring of the Vacuum Degree Based on the Partial Discharge and an Insulation Supplement Design for a Distribution Class Vacuum Interrupter," Energies, MDPI, vol. 14(23), pages 1-18, November.
    2. Rodolfo Araneo & Salvatore Celozzi & Stefano Lauria & Erika Stracqualursi & Gianfranco Di Lorenzo & Marco Graziani, 2022. "Recent Trends in Power Systems Modeling and Analysis," Energies, MDPI, vol. 15(23), pages 1-7, December.

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