Abstract
The issues that are presented in the article concern the broadly understood parameters of the operation of lighting fixtures in mixed systems and the improvement of the quality of electricity, considered in two aspects: as receivers of the energy consumed, determining and generating reactive power, influencing the asymmetry of currents and the production of higher harmonics, determined by the parameters of current and supply voltage (independent of the consumers connected at the connection point), which are influenced by the consumers that are connected at the connection point. After the tests, in order to improve the quality of energy, a proprietary program for the design of passive resonance filters was developed. A wide range of measurements of various types of lighting devices was carried out in single, complex, and mixed systems. Luminaires with discharge and LED sources were selected for the analysis of energy parameters. The tests were carried out in accordance with the IEEE 1459-2010 standard for single-phase circuits with distorted waveforms.
Highlights
Along with the growing use of new technologies in power supply systems in power grids, the problem of maintaining the parameters that are required by the standards, determining the quality of electricity [1,2]
The Inst.7 installation, which was a mixed installation with different light sources, achieved an improvement in both the power factor and a reduction in the reactive power flow in the network.The blue bars in the diagram show the reactive power in the tested installation before the filter was installed
The developed computer program effectively and efficiently enables the analysis and carries out the selection of parameters of passive filters that are dedicated to the tested installation, which results in a quick and effective reduction of harmonic content in lighting installations
Summary
Along with the growing use of new technologies in power supply systems in power grids, the problem of maintaining the parameters that are required by the standards, determining the quality of electricity [1,2]. These devices are necessary, especially for work with photovoltaic installations In this case, the generation of higher harmonics to the grid changes the parameters of this grid, which, in turn, may cause incorrect operation or even damage to PV systems connected to this grid [11,12,13]. Progressive Cities until 2030 [27] This example shows how important it is to create an appropriate IT tool that, in the dynamically changing working conditions of a lighting installation, would be able to select an appropriate filter for it in a very short time to eliminate higher harmonics that are emitted to the network by non-linear sources. A passive resonant filter for the elimination of current harmonics was proposed, the parameters of which are dynamically selected by the proprietary program calculating the actual impedance of the supply network at a given load connection point, the spectrum of harmonics that are generated by a given load, and appropriate standard recommendations for the analyzed case
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