Motor controller
US8810171B2 · kind B2 · utility
0Cited by
1References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 8, 2011 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Oct 25, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor controller is disclosed. The motor controller includes a current detector that is provided in a direct current side of a power converter and that detects direct current information. A determiner determines a size of an offset voltage contained in the detected current information. The determiner calculates the offset voltage by canceling a positive current component by a negative current component both pertaining to the same one phase and contained in the detected direct current information. A modifier modifies the detected direct current information based on the calculated offset voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.