The doctoral thesis is devoted to studying of transient modes of the electrical machines. Development of the research method of the electrical machines power system dynamics on the basis of complete equations of the elements, using structural principle of the investigated electrical machines system model construction. There are created the functional mathematical models developed for the alternating current electric machines, united in the uniform system. In the work, proposes the methods and algorithm of generation of the element constraint equations in the system of the alternating current electric machines, by means of introduction of the static load node. An opportunity for investigation of various operating modes with different commutations in the circuit is presented. The used principle of algorithmization allows composing and studying of the electrical machines power systems of any configuration.