Investigation on the DC CB Performance during a Current Interruption Failure at First Current Zero
| Autor: | Liu, S., Geng, Yingsan, Popov, M., Wang, Jianhua, Liu, Zhiyuan, Zhang, Bojian, Falkingham, Lesli T., Kaneko, Eiji |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Physics
active injection Dielectric strength 020209 energy 02 engineering and technology Dielectric HVDC circuit breaker PSCAD simulation Fault (power engineering) di/dt Control theory 0202 electrical engineering electronic engineering information engineering Current (fluid) Interrupt Control logic fault interruption Circuit breaker Voltage |
| Zdroj: | ISDEIV 2018-Proceedings of the 28th International Symposium on Discharges and Electrical Insulation in Vacuum, 2 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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