СПОСОБ УПРАВЛЕНИЯ ИНДУКТОРНЫМ ДВИГАТЕЛЕМ

摘要

FIELD: electrical engineering; inductor-motor drives; dc and ac consists. ^ SUBSTANCE: proposed method includes coordinated formation of path for signals of phase-current high and low settings in current passage and application of motor-feeding voltage pulses within rotor position sensor period ranging between zero and 180 el. deg. across motor phase windings. Phase current is reduced in resultant -moment build-up zone and increased in vicinity of its dip. Signal path of phase-current high and low settings through current path is organized as result of evaluation of triple-frequency sine-wave modulating signal lagging behind rotor position sensor front and offset relative to zero toward positive region found from equation Iset(t) = (-A sin(3omegant - &phis; - alpha) + k)Imax, where A is modulating signal amplitude; omegan = 2pifn - modulating signal frequency; fn is phase current frequency; k is factor including Iset deviation from zero; alpha is angle characterizing phase connection advance relative to rotor position sensor front; &phis; is angle characterizing modulating signal offset relative to rotor position sensor front; Imax is phase current maximal value. ^ EFFECT: reduced moment fluctuations due to coordinated formation of phase currents. ^ 1 cl, 4 dwg