On Control of Brushless Torque Motors with High Phase Inductance in Direct Drives of Gyro Devices

The paper studies how the phase inductance of brushless DC torque motors affects their performance within high precision electric direct drives. Modified control laws for torque motors with high phase inductance are described, which optimize their performance by various criteria. The modified laws are based on continuous regulation of mutual attitude of current and voltage vectors in the motor windings. Parameters of torque motors are compared with the described control laws applied, and advantages of their use are covered.