Bidirectional power conversion
US11837963B2 · kind B2 · utility
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20Claims
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Inventors
Key dates
| Filing date | Aug 30, 2021 |
| Grant date | Dec 5, 2023 |
| Priority date | — |
| Expiry date | Feb 2, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M5/2932
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power conversion apparatus includes: matrix converter circuitry configured to perform bidirectional power conversion between a primary side and a secondary side; and control circuitry configured to: calculate a deterioration level based on a secondary side current of the matrix converter circuitry, a carrier frequency, and a primary-secondary frequency difference between a primary side frequency and a secondary side frequency of the matrix converter circuitry; and output a deterioration notification in response to determining that the deterioration level exceeds a predetermined level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.