Method and arrangement for controlling the synchronous running of a plurality of electronically commutated motors
Assigneeebm-papst St. Georgen GmbH & Co. KG
InventorKonstantin Dornhof
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Abstract
A method of controlling synchronous running of a plurality of electronically commutated motors (22, 24, 26), each of which includes a stator having a stator winding (40, 42, 44), a permanent-magnet rotor (28, 30, 32), and at least one arrangement (34, 36, 38), associated with the respective motor, for sensing its rotor position and for generating a rotor position signal (H1, H2, H3). Also provided is an energization arrangement (46), to which the stator windings (40, 42, 44) of the motors are connected. The method includes the steps of detecting occurrence of a predetermined state of the rotor position signals (H1, H2, H3) and, in response thereto, triggering simultaneously commutation of the currents in all the motors.
Claims20
A method of controlling synchronous running of a plurality of electronically commutated motors (22, 24, 26;
- 110, 112, 114, 116) that each comprise:
- a stator having at least one stator winding (40, 42, 44;
- 120, 122;
- 126, 128;
- 132, 134;
- 138, 140),
- a permanent-magnet rotor (28, 30, 32;
- 118, 124, 130, 136), and
- at least one arrangement, associated with the respective motor, for sensing the rotor position thereof and for generating a rotor position signal (H1, H2, H3, H4), and having
- an energization arrangement (46;
- 158, 172) to which the stator windings of the motors are connected,
- comprising the steps of:
- detecting occurrence of a predetermined state of respective rotor position signals (H1, H2, H3, H4) of said motors, and
- commutating the current in all the motors simultaneously.
An arrangement having a plurality of electronically commutated motors (22, 24, 26;
- 110, 112, 114, 116) that each comprise:
- a stator having a stator winding (40, 42, 44;
- 120, 122, 126, 128, 132, 134, 138, 140),
- a permanent-magnet rotor (28, 30, 32;
- 118, 124, 130, 136), and at least one arrangement, associated with the respective motor, for sensing the rotor position thereof and for generating a corresponding rotor position signal (H1, H2, H3, H4), and
- an energization arrangement (46;
- 158, 172) to which the stator windings of the motors are connected, the energization arrangement (46;
- 158, 172) being implemented to perform the following steps:
- detecting occurrence of a predetermined state of the rotor position signals (H1, H2, H3, H4), and commutating the current in all the motors simultaneously.
Dependencies are inferred from the claim text.