公开(公告)号：US11962258B2

公开(公告)日：2024-04-16

申请号：US17873198

申请日：2022-07-26

Applicant: SKF Magnetic Mechatronics

Inventor： Stephane Marie Turpault ,  Salim Benbouzid

IPC: H02P29/64 ,  H02P21/00 ,  H02P21/14

CPC classification number: H02P29/64 ,  H02P21/0003 ,  H02P21/14

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.

公开(公告)号：US20230050472A1

公开(公告)日：2023-02-16

申请号：US17873198

申请日：2022-07-26

Applicant: SKF Magnetic Mechatronics

Inventor： Stephane Marie Turpault ,  Salim Benbouzid

IPC: H02P29/64 ,  H02P21/14 ,  H02P21/00

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.