Control device for permanent magnet-type rotating electrical machine
US10469014B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2015 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Nov 25, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2213/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a control device for a permanent magnet-type rotating electrical machine (100), which includes a current coordinate transformation unit (109) configured to output a d-axis current and a q-axis current by coordinate transformation of three-phase AC currents respectively detected by current detection units (111, 112, 113), a current correction direction calculation unit (108) configured to calculate a current correction direction through use of the d-axis current and the q-axis current, and a current correction amount addition unit (102) configured to correct a d-axis current command and a q-axis current command based on the current correction direction. In this manner, an induced voltage is converged to lie within a maximum voltage circle in accordance with a power supply voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.