Ivanovo: ISUE, 2002. —Course of lectures . The aim of the course is to learn the principles of automatic control , Types of automatic control systems , Used in Technology , Mathematical apparatus for the study of linear ACS , Basic elements and characteristics of ACS , Methods of ACS analysis for stability and quality of management , Methods of correction of properties of linear ACS. This course is intended for students studying in the specialty "Electromechanics", for which TAU is not a profile subject. Therefore, special attention is paid to the principles of analysis of differential equations describing transition processes in any technical systems, including electrical machines. At the same time, students get acquainted with the basic principles of science, studying the principles of the use of electric machines in adjustable drives.