Electric power conversion apparatus and electric power conversion method
US9590515B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2015 |
| Grant date | Mar 7, 2017 |
| Priority date | — |
| Expiry date | Dec 16, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/72
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
There is provided a electric power conversion method of an electric power conversion apparatus comprising: charging the capacitor by transmitting the electric power from the primary circuit to the secondary circuit; and determining whether a voltage across the capacitor is equal to or greater than a predetermined value; the electric power conversion method further comprising, upon determining that the voltage across the capacitor is greater than or equal to the predetermined value, stopping to drive the primary circuit; driving the first secondary upper arm or the second secondary upper arm; and detecting whether a short-circuiting failure occurs in the first secondary lower arm or in the second secondary lower arm based on a presence or absence of change in a voltage at the secondary port in response to driving the first secondary upper arm or the second secondary upper arm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.