Apparatus for controlling torque of electric rotating machine
US7986116B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2008 |
| Grant date | Jul 26, 2011 |
| Priority date | — |
| Expiry date | Feb 16, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P21/0003
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The apparatus is for controlling a torque of an electric rotating machine at a command torque by supplying command voltages in accordance with the command torque to a power conversion circuit driving the electrical rotating machine. The apparatus includes a detecting function of detecting an input voltage of the power conversion circuit to be power-converted and thereafter applied to the electric rotating machine as a drive voltage, and a control function of setting a command current corresponding to one of two current components in a 2-phase coordinate system of the electric rotating machine in accordance with a command torque directed from outside, and thereafter determining command voltages corresponding to two voltage components of the 2-phase coordinate system on the basis of the command current and the input voltage of the power conversion circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.