Derendyaeva L.V. 1
1 Vyatka State University
The replacement of the electrical system of the simplified model is reflected in the transformation of the equivalent circuit of the system. Such transformations are always focused on getting more simple design scheme. This gives grounds for the term «эквивалентирование» to characterize the performance of simple transformations of circuits of electric power systems. The offered techniques, algorithm and program for the calculation of the frequency characteristics of resistance units to the electrical outlet. The proposed method of calculation of the frequency response is accurate enough, occupies a relatively small number of computer memory and human labour in the preparation of the initial data. Offered the equivalent circuit of electric networks, which identifies three subsystems, corresponding to the three levels of the hierarchy. Satisfaction of the suggested criteria equivalence provides the immutability of the source mode subsystem TVET after the replacement of converted subsystems simplified model. When calculating the subsystem are considered the complex coefficients of transformation with the help of the matrix, and distribution of parameters of power transmission lines is taken into account by means of correction factors.