Converter valve fault warning method and system
US10877082B2 · kind B2 · utility
0Cited by
4References
13Claims
0Family size
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Key dates
| Filing date | Mar 1, 2017 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Mar 16, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S10/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Within a predetermined time range, record time information of status indication signals fed back by thyristor control units (TCU) of a converter valve. Perform statistics and comparison of the pieces of time information using a bias statistics method. Mark a thyristor level whose bias exceeds a preset value. And determine a probability of failure in the thyristor according to the marking result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.