This article considers and develops a method for identifying the parameters of mathematical models of electromechanical consumers of regionally isolated electrotechnical complexes. The validity of the proposed method application to identify parameters to determine influence of consumer characteristics on the quality of electrical energy at the point of common coupling is shown. The description of the mathematical model of the electrical energy distribution point consisting of several consumes is shown. The mathematical model is developed in the Cauchy normal form. A modification of the Marquardt method is proposed as an identification tool.

The article offers a method for identifying parameters of mathematical models of electrical complexes and systems. The method is designed to create a system for monitoring the influence of nonlinear components of electrical complexes and systems in their deep interaction on the quality of electrical energy in the load node. The application of the coefficient of variation of parameters as a criterion for evaluating the reliability of identification of parameters of mathematical models is justified. As the initial information, digitized data of the voltage at the point of common connection and the currents of individual components of the analyzed complex are used. The mathematical apparatus of identification is based on a modification of the Marquardt method. A series of computational experiments confirms the main theoretical provisions of the article. It is shown that it is possible to identify the parameters of models of complex components with a significantly nonlinear form of stress at the point of common connection