SYNTHESIS TORQUE OPTIMAL REGULATOR ELECTRIC DRIVE FOR PERMANENT MAGNET BRUSHLESS MOTOR IN INDUSTRIAL ROBOTICS

Proposes solution for the synthesis of torque optimal regulator to smooth the brushless DC motor (BLDC) torque with using Fourier transform of phase currents and rotor angle. Analyze torque ripples in BLDC motor which caused by the mutual inductance between rotor and stator windings motor and an unexpected frequency of reverse phase currents. Phase voltages saturation of the inverter driver and copper loss process caused by the diffusion of inverse phase currents with unexpected frequencies are analyzed. The electric drive characteristics of the BLDC motor are considered as a mechatronic system. The efficiency of using torque optimal control with its compensation in BLDC motor is demonstrated with taking into account the dependence of the electromagnetic characteristics on its angle rotor rotation. Simulation results are taken out on Matlab/SIMULINK environment.

Authors: M. P. Belov, D. K. Tran, T. H. Phuong

Direction: Electrical Engineering

Keywords: Electric drive, BLDC motor, pulse width modulation, torque optimal control, Fourier transform

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