Research on Energy Dissipation Technology and AC Overvoltage Suppression of Sending End in UHVDC Transmission

Abstract For suppress the amplitude of overvoltage from HVDC sending terminal, an overvoltage suppression scheme based on the principle of controllable energy dissipation was proposed. The overvoltage mechanism of a weak AC system under the fault of the DC system was analyzed, and the method and ope...

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Published inJournal of physics. Conference series Vol. 2427; no. 1; pp. 12030 - 12035
Main Authors Huang, Yongrui, Han, Kun, Hu, Qiuling, Zhang, Wenbo, Yuan, Hongtao, Shao, Zhuke, Cui, Xiaochen
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.02.2023
Subjects
Controllability
Energy dissipation
Overvoltage
Physics
Principles
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Summary:Abstract For suppress the amplitude of overvoltage from HVDC sending terminal, an overvoltage suppression scheme based on the principle of controllable energy dissipation was proposed. The overvoltage mechanism of a weak AC system under the fault of the DC system was analyzed, and the method and operating principle of the CSREDD were proposed. Prototype of the develop CSREDD was tested, which proved correctness about the design. The controllable energy dissipation device has been successfully applied to the ±800kV Lu-Gu UHVDC transmission project. The operation results show that the controllable energy dissipation device can effectively suppress the AC overvoltage.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2427/1/012030