Device for estimating the temperature of a stator coil of a magnetic bearing, associated magnetic suspension system and method for estimating the temperature of a stator coil
US11962258B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2022 |
| Grant date | Apr 16, 2024 |
| Priority date | — |
| Expiry date | Jul 26, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K2217/00
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method for estimating the temperature of a stator coil of a magnetic suspension bearing of a rotor that is connected by connection wires to circuits for servo-controlling the position of the rotor includes the following steps: measuring the electric voltage at the terminals of the connection wires of the stator coil; measuring the intensity of the current passing through the stator coil; estimating the electric resistance of the stator coil and of the connection wires on the basis of an adaptive filter, the measured electric voltage and the intensity of the measured current; and estimating the temperature of the coil on the basis of the value of the estimated resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.