METHOD FOR CONTROLLING INDUCTOR MOTOR Russian patent published in 2006 - IPC H02P8/00 H02P6/00 

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 I_set(t) = (-A sin(3ω_nt - φ - α) + k)I_max, where A is modulating signal amplitude; ω_n = 2πf_n - modulating signal frequency; f_n is phase current frequency; k is factor including I_set deviation from zero; α is angle characterizing phase connection advance relative to rotor position sensor front; φ is angle characterizing modulating signal offset relative to rotor position sensor front; I_max is phase current maximal value.

EFFECT: reduced moment fluctuations due to coordinated formation of phase currents.

1 cl, 4 dwg