Power conversion device
US12323068B2 · kind B2 · utility
0Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2021 |
| Grant date | Jun 3, 2025 |
| Priority date | — |
| Expiry date | Jul 24, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P29/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power conversion device includes: a switching signal generator configured to generate a switching signal to output, from an inverter circuit, an AC voltage corresponding to a designated phase; a speed estimator configured to estimate an estimated phase of a rotor of a motor based on a current flowing through the motor; and a beat suppression controller configured to output an adjusted phase to the switching signal generator so as to suppress a beat component superimposed on the current flowing through the motor, the adjusted phase being obtained by adjusting the estimated phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.