Method and device for detecting winding temperature, method and device for thermal protection of a motor
US9234803B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 29, 2012 |
| Grant date | Jan 12, 2016 |
| Priority date | — |
| Expiry date | Dec 5, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P29/64
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and device for detecting the temperature of a motor winding, a method and device for thermal protection of a motor are provided, the method for detecting the temperature of a motor winding includes: obtaining the temperature of the motor winding at a first time before a time step; calculating the temperature rise of the rotor equivalent body after the motor runs for the time step; then calculating the temperature of the motor winding after the motor runs for the time step by superposing the temperature rise of the rotor equivalent body after the motor runs for the time step on the temperature of the motor winding obtained at the first time. By the method for detecting the temperature of a motor winding, the real-time monitoring on the temperature of the winding is achieved, thus applying the ability of the motor and improving sensitivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.