Infoscience

Patent

Method and device for controlling a synchronous motor with permanent magnet (Procédé et dispositif de commande d'un moteur synchrone à aimant permanent)

NOVELTY - For control mono-phase or multiphase machines in motor or generating mode with or without pulse width modulation. USE - Control of electrical rotating machines. ADVANTAGE - Can be used for control of single phase and three phase machines. DETAILED DESCRIPTION - The method for control of a permanent magnet synchronous motor (10) from a supply source (11) without direct sensing, having at least a phase, a winding, and a rotor. The supply to each phase of the motor is controlled. The output signals from the voltage measured at each phase is sampled at variable frequency and the control of the supply to each phase is determined from the sampled signals. The control device uses a converter (12), a bridge network (13) which supplies the motor winding, a winding supply control unit, a measuring circuit (14) for the voltage at each phase, and a control unit (15). The control unit is composed of a microprocessor (16) and a comparator (17) which compares the instantaneous value of the total motor current to a reference value. The controller also has a sensor (18) which determines the real position of the rotor as a function of the induced voltage due to rotor displacement. All the components are contained on a printed circuit board.. DESCRIPTION OF DRAWING(S) - The drawing a schematic of the system motor (10) supply source (11) convertor (12) bridge network (13) measuring circuit (14) control unit (15) micro-processor (16) comparator (17) sensor (18)

    Note:

    FR2769428-A1; WO9918654-A1; EP1020019-A1; EP1020019-B1; WO9918654-A FR2769428-A1 09 Apr 1999 H02P-006/14 199921 Pages: 27 WO9918654-A1 15 Apr 1999 H02P-006/18 199922 FRN AU9892497-A 27 Apr 1999 H02P-006/18 199936 EP1020019-A1 19 Jul 2000 H02P-006/18 200036 FRN JP2001519640-W 23 Oct 2001 H02P-006/18 200202 Pages: 26 US6326760-B1 04 Dec 2001 H02P-006/16 200203 DE69805641-E 04 Jul 2002 H02P-006/18 200251

    Reference

    Record created on 2006-06-15, modified on 2016-08-08

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