Identification of parameters of equivalent circuits of electrical network connections in the problem of distribution of their actual contributions

Authors

Keywords:

point of common coupling; equivalent circuit; identification of equivalent circuit parameters; mixed load; electric power system.

Abstract

One of the current problems of modern electricity is the distribution of actual contributions for lowering the quality of electricity at the point of general connection of electricity networks. Despite the large number of developed methods to address this issue, their adequacy depends on the accuracy of identification of the parameters of the schemes of replacement of elements of the electrical network. In this regard, the article considers the problem of identifying the parameters of equivalent schemes of replacement of the power system, mixed passive and active loads, taking into account the sources of electricity in their composition. Two approaches were considered to obtain the initial data on parametric identification. The first of them is based on local measurements of the parameters of the electrical network. The second - on distributed measurements. As a result, the areas of solution of this problem for each of the types of organization of measuring systems taking into account the active intervention in the operation of the electrical network are identified. Methods of approximate calculation of parameters of passive mixed load substitution schemes in three-phase three- and four-wire electric networks, which are based on local measurements, are determined. Methods of exact calculation of parameters of schemes of substitution of electric power system and active mixed loading which are based on the distributed measurements are defined. In addition, the requirements for the organization of a distributed measurement system, which are based on the use of a full-fledged system of SmartGrid with additional application of methods and tools of vector measurement and system of SCADA.

Author Biography

D. Kalyuzhniy, O.M.Beketov National University of Urban Economy in Kharkiv

Associate Professor, candidate of technical Sciences

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Published

2020-09-03

How to Cite

Kalyuzhniy, D. (2020). Identification of parameters of equivalent circuits of electrical network connections in the problem of distribution of their actual contributions. Lighting Engineering & Power Engineering, 1(57), 33–38. Retrieved from https://lepe.kname.edu.ua/index.php/lepe/article/view/429

Issue

Vol. 1 No. 57 (2020): Lighting Engineering & Power Engineering

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Articles

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