Testing of High-Torque Electric Motor For Gearless Electromechanical Actuator

This paper presents the results of testing high-torque brushless DC motor with a peak power output of 3.35 kW for gearless electromechanical steering actuator. Experimental studies of nominal parameters, static stability and heating of a high-torque brushless DC motor are presented. During the test, the values of torque, maximum static load and temperature of the stator winding were obtained. The curve output-torque from rotation-speed obtained during the tests has good convergence with the modeling in Ansys, and differs by no more than 10%. Heat tests showed the effectiveness of thermal parameters. The measurement of the active resistance of the stator windings, the measurement of the residual magnetization of the permanent magnets, carried out after the tests, confirm the performance of the prototype of a brushless DC motor.