Rotating machine control device
US12021469B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2022 |
| Grant date | Jun 25, 2024 |
| Priority date | — |
| Expiry date | Mar 18, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a rotating machine control device which controls an alternating current voltage command which is transmitted to an electric power converter, the alternating current voltage command is generated so that 1f component of the phase current may follow a current command. However, when the rotor position information by a position detecting element which detects the position of the rotor of a rotating machine has an error, an offset component is produced in the phase current. A controller includes an offset compensation part which calculates an offset compensation amount, from a detection result of the detection current so that the offset component of the detection current of the current detecting element may be decreased, and performs an addition or subtraction operation of an offset compensation command to the alternating current voltage command which a voltage command generation part outputs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.