The methods of calculation of optimal modes of operation of various technical objects and methods of designing regulators that automatically implement optimal modes of operation of the objects under consideration. are presented. In contrast to the available literature , by optimization, The book describes the methods of designing regulators , which not only deliver a minimum of medium-squared quality criteria, but also ensure the fulfillment of additional technical requirements (stability with deviations of parameters from the calculated values , Ease of implementation, Uniformity of structure and t. p. ). Designed for engineering and technical workers in the field of energy, automatic control and regulation, automated electric drive .