Summary of Fault Characteristic of Thyristors in HVDC Converter Valve under Over-voltage Condition

Jiachen Tian, Yating Gou, Cuicui Liu, Ziqian Zhang, Chong Gao, Jianhui Zhou, Jing Zhang, Fang Zhuo, Feng Wang

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem Konferenzband

Abstract

With the development of HVDC transmission technology, HVDC converter valves are widely used in many areas including the connection between systems with different frequencies. Thyristor is the core component in HVDC converter valve and its reliability will influence the operation of HVDC converter valve. However, the structure of thyristor is fragile under over-voltage condition. On the one hand, external shock such as HEMP will cause over-voltage condition inside the converter valve. The changing rate of voltage is so large that structure of thyristor may be destroyed. On the other hand, when the thyristor is in reverse characteristic recovery phase, a large reverse recovery voltage overshoot occurs. This over-voltage condition will cause damage to thyristor because thyristor is fragile in this phase. Based on these analysis above, in order to reduce the damages caused by over-voltage and design some methods to realize the online- monitoring, this paper summarizes the fault characteristics of thyristor under over-voltage condition.

Originalspracheenglisch
Titel2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019
Herausgeber (Verlag)Institute of Electrical and Electronics Engineers
ISBN (elektronisch)9781728133980
DOIs
PublikationsstatusVeröffentlicht - 1 Aug 2019
Veranstaltung22nd International Conference on Electrical Machines and Systems, ICEMS 2019 - Harbin, China
Dauer: 11 Aug 201914 Aug 2019

Publikationsreihe

Name2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019

Konferenz

Konferenz22nd International Conference on Electrical Machines and Systems, ICEMS 2019
LandChina
OrtHarbin
Zeitraum11/08/1914/08/19

ASJC Scopus subject areas

  • !!Control and Optimization
  • !!Energy Engineering and Power Technology
  • !!Control and Systems Engineering
  • !!Electrical and Electronic Engineering
  • !!Mechanical Engineering

Fingerprint Untersuchen Sie die Forschungsthemen von „Summary of Fault Characteristic of Thyristors in HVDC Converter Valve under Over-voltage Condition“. Zusammen bilden sie einen einzigartigen Fingerprint.

  • Dieses zitieren

    Tian, J., Gou, Y., Liu, C., Zhang, Z., Gao, C., Zhou, J., ... Wang, F. (2019). Summary of Fault Characteristic of Thyristors in HVDC Converter Valve under Over-voltage Condition. in 2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019 [8922237] (2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019). Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/ICEMS.2019.8922237