Static voltage sharing technology of multi-break mechanical switch for hybrid HVDC breaker
| Autor: | Qiuyu Yang, Daochun Huang, Xuezong Wang, Zhibin Qiu, Jiangjun Ruan |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
HVDC power transmission
finite element analysis voltage distribution circuit breakers capacitance static voltage sharing technology multibreak mechanical switch hybrid HVDC breaker high-voltage direct current breaker serially connected interrupter units static voltage distribution characteristics voltage sharing design mechanical switching power electronics switching finite-element model static voltage distribution capacitance parameters Engineering (General). Civil engineering (General) TA1-2040 |
| Zdroj: | The Journal of Engineering (2019) |
| Druh dokumentu: | article |
| ISSN: | 2051-3305 |
| DOI: | 10.1049/joe.2018.8465 |
| Popis: | The hybrid high-voltage direct current (HVDC) breaker combines mechanical and power electronics switching that enables it to interrupt power flows within a few milliseconds. Mechanical switch is a key component of hybrid HVDC breaker and has a number of serially connected interrupter units which ideally would divide the voltage equally. The static voltage distribution characteristics and voltage sharing design of a multi-break mechanical switch were discussed in this study. A finite-element model was developed to study the static voltage distribution characteristics and capacitance parameters of multi-break mechanical switch (which actually consists of resistance and capacitance parameters under direct current) as a preliminary study. Comparisons were made under the simulation of vertical and U-shaped arrangement forms. The results indicate that the static voltage distribution of the high-voltage terminal is at least more than 65%, whereas the severe non-uniform voltage distribution can be well improved by means of the method proposed in this study. |
| Databáze: | Directory of Open Access Journals |
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