It is shown that a key direction in the field of increasing the efficiency of electricity networks is development of methods for computer investigation of dynamics of transients and abnormal modes of power systems. Differential mathematical models of studies of the abnormal and emergency modes of power systems are proposed. The discussed methods allow one to perform the spectral analysis of the abnormal and emergency modes of power systems in the field of differential images. Methods for the analysis of individual harmonic components of dynamic processes, calculation of spectral density and correlation functions are given.
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Stasiuk et al. (2018) studied this question.
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