Electric device comprising an alternating current electric...

Details Electric device comprising an alternating current electric... Electric device comprising an alternating current electric...

H - Electricity

02

P

H02P 27/06 (2006.01) B60L 15/20 (2006.01) G01R 31/34 (2006.01) H02M 1/08 (2006.01) H02M 7/5387 (2007.01)

Patent

CA 2744634

The invention relates to an electric device (1) comprising an alternating current electric motor (3) and a control inverter (5) for controlling the phase or phases of the motor (3). The motor (3) comprises, on at least one winding of at least one phase (PA, PB, PC), a point (Ma, Mb, Mc) for measuring a voltage relative to a predefined potential (M), the measurement point (Ma, Mb, Mc) being chosen so that it divides the winding into a first (Za1; Zb1)* Zc1) and a second (Za2; Zb2; Zc2) portion such that the electromotive forces (e a1, e a2) induced in the two portions are phase-shifted relative to one another and means (11A; 11B; 11C) for measuring the voltage between the measurement point and the predefined potential. The invention also relates to an associated method for measuring electromotive forces.

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