Identification of the SEMS Module Using the Example of a Model of a Linear Electric Drive of a Counter-Reflector Actuator Taking into Account Constrains

Problem statement: Radio telescopes are large, complex electromechanical systems designed to study radiation from cosmic radio sources. The study of extremely low intensities of radio signals from distant sources requires the creation of large fully rotating radio telescopes, which are subject to various types of influences, which significantly reduces the quality of observations. Modern radio telescopes are built using the principle of adaptive optics, when reflecting surfaces can change their shape and move in space to compensate for the influence of external influences. SEMS modules are widely used to solve problems. Correction of pointing errors of the dish system can be effectively performed by moving the secondary dish of the radio telescope, which is called a counter-reflector. Synthesizing a counter-reflector control system is a complex task, as it is necessary to take into account a huge number of various kinds of constraints. A counter-reflector with an actuator is a complex electromechanical system, which requires the development of a model taking into account the constraints and identification of its parameters. Purpose: Development of a model of a linear electric drive for the counter-reflector actuator of a millimeter-wave radio telescope, taking into account limitations. Creation of a method for identifying the developed model taking into account constraints. Results: Models of the linear electric drive of the counter-reflector of a millimeter-wave radio telescope have been developed and methods for identifying these models, taking into account constraints, have been proposed. Practical significance: The developed models and methods for their identification can be used to create a control system for the dish system of a millimeter-wave radio telescope.