Abstract
The vacuum interrupter is used as the key component of an active DCCB due to its excellent interruption and dielectric recovery characteristics after current zero. The vacuum interrupter can only interrupt the fault currents below the limitation of a critical di/dt and TIV, otherwise it causes a reignition and the interruption failure. In this paper, a detailed active injection DC CB model is developed, considering operation delay of switches, parasitic parameters of switches and thorough control logic. The limitation dielectric strength between the vacuum gap is defined by the cold break down voltage. Based on the numerical modelling, investigation will be performed to see the performance of DC CB with a failure interruption on the first current zero. The simulation results can help to optimize the injection circuit parameters when DC CB has a failure on the first current zero and has to interrupt in the next current zeros. This algorithm will consider predefined threshold of di/dt, chopping current and variable operation time in different scenarios.
Original language | English |
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Title of host publication | ISDEIV 2018 - Proceedings of the 28th International Symposium on Discharges and Electrical Insulation in Vacuum |
Editors | Lesli T. Falkingham, Eiji Kaneko |
Place of Publication | Piscataway, NJ, USA |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Pages | 559-562 |
Number of pages | 4 |
Volume | 2 |
ISBN (Electronic) | 978-1-5386-4373-0 |
ISBN (Print) | 978-1-5386-4375-4 |
DOIs | |
Publication status | Published - 2018 |
Event | 28th International Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV 2018 - Greifswald, Germany Duration: 23 Sept 2018 → 28 Sept 2018 |
Conference
Conference | 28th International Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV 2018 |
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Country/Territory | Germany |
City | Greifswald |
Period | 23/09/18 → 28/09/18 |
Bibliographical note
Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-careOtherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
Keywords
- active injection
- di/dt
- fault interruption
- HVDC circuit breaker
- PSCAD simulation