FIELD: engines and pumps.
SUBSTANCE: invention relates to controlled motors, particularly, to inverter-fed motors and can be used in AC controlled drives. Proposed method comprises conversion of setting voltage in coordinate transducer into phase control setting voltages as angle signal from motor rotor turn transducer. Besides it includes conversion of phase control setting voltages in three-phase self-contained voltage inverter with PWM at input and synchronous motor stator three-phase supply voltage. Control phase setting voltages are generated in coordinate transducer in compliance with selected algorithm.
EFFECT: higher motor efficiency owing to reduced dynamic (commutation) losses.
3 dwg
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