Method and device for monitoring the startup of an electric drive
US8436561B2 · kind B2 · utility
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4Claims
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Key dates
| Filing date | Dec 18, 2009 |
| Grant date | May 7, 2013 |
| Priority date | — |
| Expiry date | Apr 8, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/64
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and a device for monitoring the startup of an electric drive, which has a polyphase machine, a pulse-controlled inverter and a control unit. The control unit is provided to compare rotational speed values that are successive in time to one another during the startup of the drive, and when recognizing a non-increase in the rotational speed of the rotor shaft, to detect a mixup of phase lines or pulse-controlled inverter lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.