Power inverter and electric power steering controller
US8917050B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2011 |
| Grant date | Dec 23, 2014 |
| Priority date | — |
| Expiry date | Mar 5, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power inverter is provided that can apply to an AC rotary machine three-phase voltages of high amplitudes and low distortion while suppressing ohmic loss attributed to current detection resisters. The power inverter includes a superimposed voltage command computing device which is configured to compute and output a superimposed voltage command depending on the difference between a maximum value and a minimum value of three-phase voltage commands; a voltage command modification device which is configured to add the superimposed voltage command to each of the three-phase voltage commands and outputting modified three-phase voltage commands; and a power output device which is configure to output the three-phase voltages based on the modified three-phase voltage commands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.