Control device of AC rotating machine
US9231511B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2012 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | Oct 30, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2203/11
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control device of an AC rotating machine includes a controller receiving a current vector instruction and a detection current vector as inputs and outputs a voltage vector instruction to the AC rotating machine, an alternating current amplitude computation mechanism computing an alternating current amplitude of at least one of a parallel component and an orthogonal component with respect to the voltage vector instruction, an alternating current amplitude instruction generator generating an alternating current amplitude instruction from the current vector instruction, and a magnetic-pole position computation mechanism computing an estimated magnetic-pole position of the AC rotating machine. The magnetic-pole position computation mechanism computes the estimated magnetic-pole position so that the alternating current amplitude coincides with the alternating current amplitude instruction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.