Title:
METHOD AND DEVICE FOR DETERMINING THE MECHANICAL LOAD OF AN ALTERNATING CURRENT SYNCHRONOUS ELECTRIC MOTOR WITH A PERMANENT MAGNET ROTOR
Document Type and Number:
WIPO Patent Application WO2005117246
Kind Code:
A3
Abstract:
For determining the mechanical load of an alternating current synchronous electric motor (M) having a permanent magnet rotor, - the rotor is associated with an electrical position sensor (S), stationary in operation, which can supply an alternating electrical position signal (H); - the phase difference (f) between the said position signal (H) and the alternating supply voltage (V) of the motor (M) is determined, and - the determined phase difference (f) is compared with at least one predetermined reference.
Inventors:
ACQUAVIVA SEBASTIANO (IT)
DIACONO DOMENICO (IT)
DIACONO DOMENICO (IT)
Application Number:
PCT/EP2005/052464
Publication Date:
April 13, 2006
Filing Date:
May 30, 2005
Export Citation:
Assignee:
EMERSON APPLIANCE MOTORS EUROPE (IT)
ACQUAVIVA SEBASTIANO (IT)
DIACONO DOMENICO (IT)
ACQUAVIVA SEBASTIANO (IT)
DIACONO DOMENICO (IT)
International Classes:
G01R31/34; H02P6/16; H02P23/14; (IPC1-7): G01R31/34
Foreign References:
| US4991429A | 1991-02-12 | |||
| CH294384A | 1953-11-15 | |||
| EP0407253A1 | 1991-01-09 |
Download PDF:
Previous Patent: POLYPHASE ROTATING ELECTRICAL MACHINE FOR A MOTOR VEHICLE
Next Patent: SHELF STORAGE SYSTEM WITH ENERGY RECYCLING
Next Patent: SHELF STORAGE SYSTEM WITH ENERGY RECYCLING