System and method for monitoring ultracapacitors
US10826306B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2018 |
| Grant date | Nov 3, 2020 |
| Priority date | — |
| Expiry date | Feb 2, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E70/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for monitoring a bank of ultracapacitors configured to power an alternating current (AC) pitch motor of a pitch system in a wind turbine is provided. The method includes obtaining, by one or more control devices, data indicative of a voltage associated with the bank of ultracapacitors. The method includes conducting, by the one or more control devices, a test operation of the bank of ultracapacitors at predetermined intervals of time to determine a capacitance associated with the bank of ultracapacitors. The method further includes performing, by the one or more control devices, one or more control actions based, at least in part, on the capacitance or the data indicative of the voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.