Abstract
Synchronous in-phase electric drive is widely used in thermal-imaging and laser scanning systems due to their high accuracy and dynamic characteristics in a wide range of angular velocity control. The purpose of the article is to develop ways to control a synchronous-in-phase electric drive in the modes of synchronization, phasing and control in response of reference signal changes, allowing to improve the dynamic performance of the electric drive and reduce information loss in the scanning system. The method of electric drive phasing that is quasi-optimal in speed has been improved. Recommendations on the organization of transient processes with an abrupt change in the reference signal are formulated. For use in the electric drive control system, a circuit implementation of an impulse frequency-phase discriminator with an extended linear zone in the phase comparison mode has been proposed, it allows to improve the dynamic performance of the electric drive in the modes of synchronization, phasing and control in response of reference signal changes.
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