DEVICE AND METHOD FOR ELECTROMAGNETIC TORQUE MEASUREMENT AT ELECTRIC DRIVE WITH SYNCHRONOUS RELUCTANCE MACHINE Russian patent published in 2015 - IPC G01L3/22 G01L5/00 G01L5/10 H02P25/08 H02P6/08 

FIELD: electricity.

SUBSTANCE: in device for electromagnetic torque measurement at electric drive with synchronous reluctance machine to the circuit of each phase winding of stator a current sensor is coupled in series and its output terminals are coupled to the first group of input terminals of the first signals commutator and to the first group of input terminals of the second signals commutator. Rotor position transducer is coupled mechanically to the electric engine shaft and its output terminals are coupled to the second group of inputs of the first and second signals commutators. Output terminals of commutators are connected to input terminals of summators, which output terminals are connected to input terminals of multiplying unit, which voltage at the output corresponds to the value of electromagnetic torque of the engine.

EFFECT: expanded functional capabilities, improved operational reliability and accuracy.

3 cl, 7 dwg