Power converter resonance detection apparatus and method
US9667128B2 · kind B2 · utility
4Cited by
13References
20Claims
0Family size
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Key dates
| Filing date | Aug 9, 2012 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Mar 27, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M5/4585
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Power conversion systems and methods are presented for detecting filter capacitor resonance conditions in a power conversion system in which filter currents are measured and filtered using a bandpass filter, and one or more computed mean, RMS, and/or Fourier transform values are computed based on the filtered value(s). The computed measurement value or values are compared with a predetermined threshold and a suspected filter capacitor resonance condition is selectively identified based on comparison result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.