Organization of electric drive control with phase synchronization without unlocking frequency phase-locked loop in modes of signal alarm processing

Synchronous-in-phase electric drives are widely used in thermal-imaging and laser scanning systems due to high accuracy characteristics in a wide range of angular velocity control. The purpose of the article is to investigate the method of controlling an electric drive with phase synchronization under the reference signal jumps. The results of computer simulation modelling of the synchronous-in-phase electric drive transient process are given when switching an electric drive from one specified angular velocity to another. The transition from one speed to another is realized by applying intermediate values of the base frequency and occurs without opening the internal control loop.