System and method for motor fault detection by space vector angular fluctuation
US6640196B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 2001 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Oct 24, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/343
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methodologies are disclosed for detecting faults and adverse conditions associated with electric motors. The method comprises obtaining a current signal associated with the motor, calculating a space vector from the current signal, determining a space vector angular fluctuation from the space vector, and analyzing the space vector angular fluctuation in order to detect at least one fault associated with the motor. Systems are disclosed having a diagnostics component adapted to obtain a space vector angular fluctuation from a current signal relating to operation of the motor, and to analyze the space vector angular fluctuation in order to detect at least one fault in the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.