Authors: Yu.Yu. Leonova, V.A. Negadaev

Title of the article: The analysis and the selection of filtrocompensating devices in networks with pulse converters

Year: 2026, Issue: 2, Pages: 21-31

Branch of knowledge: 2.4.2. Electrotechnical complexes and systems (engineering)

Index UDK: 621.316

DOI: 10.26730/1816-4528-2026-2-21-31

Abstract: The presence of electrical energy consumers with non-linear volt-ampere characteristics leads to distortion of the current and voltage sine wave due to the appearance of higher harmonics, which affects the quality of electricity, energy losses, and the reliability of electrical equipment. From an economic perspective, voltage distortion causes an additional charge on the tariff, which can reach up to 10% of the electricity tariff. Higher harmonics of current and voltage can be compensated using filter-compensating devices, such as passive, active, and hybrid filters with various topologies. Filter-compensating devices have advantages and disadvantages, so it can be difficult to choose a specific device. A significant number of studies on optimizing the selection, placement, and control of filter-compensating devices confirm the relevance of this research. The objectives of this study were to review the methods and optimization criteria used to select filters and their parameters, and to propose a method for selecting the type and parameters of filters. This paper presents the results of studies of the cost dependencies of different types of filter compensating devices on their parameters: reactive power, permissible current, the number of filtered harmonics. To determine the parameters at which it is expedient to use active filters, the calculation of filters was carried out at different values of reactive power, current. The calculation was carried out for cases when only harmonic filtering is required and when it is necessary to additionally compensate for reactive power. Based on the results of the study, conclusions were drawn about the existence of dependencies between the cost of filter compensating devices and reactive power, current. The number of harmonics at different values of reactive power has been determined, at which the choice of active filters becomes rational in terms of acquisition costs.

Key words: Powerful non-linear electrical receivers higher harmonic components of currents and voltages passive harmonic filters active harmonic filters reactive power compensation cost of reactive power compensation

Receiving date: 30.01.2026

Approval date: 15.03.2026

Publication date: 04.06.2026

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