INDUCTOR MOTOR CONTROL METHOD Russian patent published in 2010 - IPC H02P25/08 H02P6/00 H02P6/16 

FIELD: electricity.

SUBSTANCE: in control method of inductor motor there preliminarily entered to the memory of control system is table dependence Δi_Φ on position (turning angle) of rotor, ratio of priority of phase switching at direct (forward movement) and reverse (backward movement) direction of rotor rotation, parametres are measured and compared to table ones, mark signals are supplied, optimum operating phase is determined as per the table of priority of phase switching at zero rotation frequency as per the ratio of amplitudes of mark signals of fixed length to all phase windings and the specified rotation direction. Moments of beginning of current rise are determined as functions of amplitude of mark signals at rotation frequency of 0 to n_gen. : t_open=f(Δi_{Φ max}), where Δi_{Φ max} - maximum mark signal to non-operating phase; t_open - moment of opening of current phase, which is measured with the number of beats of microprocessor timer; fixed length and frequency restricted with winding inductance of inductor motor, operating frequency of transistors of independent voltage inverter and quick operation of control system, and completion moments of supplied current to the phase are determined from the opening moments of current and previous phases in compliance with the function specified in invention formula, and at rotation frequencies n>n_gen there determined are completion moments of supplied current to phase windings as function t_close=f(di_Φ/dt), where di_Φ/dt - derivative of phase current at transition to generation mode; and beginning moments of current formation in phase are determined in compliance with the function specified in invention formula.

EFFECT: improving control reliability of inductor motor within the whole range of rotation frequencies and effectiveness of electric drive owing to simplifying its design.

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