Motor winding temperature estimator
US10938335B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 3, 2019 |
| Grant date | Mar 2, 2021 |
| Priority date | — |
| Expiry date | Jul 3, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Examples of the present disclosure relate to a device, method, and medium storing instructions for execution by a processor for estimating motor winding temperature. In an example, a device for estimating motor winding temperature includes a motor shaft and a motor winding. The device may include a current sense resistor to detect the current passing through a common wiring. The device may include a digital to analog converter to convert an input voltage to an analog signal for comparison to the voltage and to generate a differential voltage using the signals received from the current sense resistor and an initial voltage supplied to the motor winding. The device may include a processor to use the differential voltage and a current input value to calculate a resistance of the motor winding from comparison to a temperature conversion curve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.