Аннотация
This article discusses the optimal control problem of nonlinear systems, which are described by ordinary differential equations, their right parts are periodic in the angular coordinate. The particularity of the considered in the given work nonlinear control problems is that they take into account the fact that on unfairly long interval of time, preservation of a deviation of any subsystem of controlled system from nominal operating conditions conducts to danger of destruction and unbalance of other subsystems and even of all the system as a whole. Consideration was given to a numerical example of the optimal motion control of two-machine power system.