The Impact of Limiting Reactive Power Flows on Active Power Losses in Lighting Installations

Marek Kurkowski (), Tomasz Popławski, Maciej Zajkowski and Zbigniew Sołjan
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Marek Kurkowski: Department of Electrical Engineering, Czestochowa University of Technology, 42-200 Czestochowa, Poland
Tomasz Popławski: Department of Electrical Engineering, Czestochowa University of Technology, 42-200 Czestochowa, Poland
Maciej Zajkowski: Department of Electrical Engineering, Bialystok University of Technology, Wiejska 45D Street, 15-351 Białystok, Poland
Zbigniew Sołjan: Department of Electrical Engineering, Bialystok University of Technology, Wiejska 45D Street, 15-351 Białystok, Poland

Energies, 2024, vol. 17, issue 16, 1-18

Abstract: Road lighting is one of the most important services provided by public entities. Entities providing such a service are interested in providing it with the lowest possible financial outlays. When planning modernization, unfortunately, one forgets about hidden operating costs, which are caused by, among others, the flow of reactive energy in the circuit. The use of modern light sources also involves the use of electronic systems in their accessories, which makes these electrical energy receivers capacitive. This is due to the lack of use of individual compensation systems in the luminaires themselves. Due to the above, the costs of capacitive reactive energy flow also increase. Newly designed road lighting installations, as well as modernized ones, are equipped with electronic systems enabling their effective control. The operation of such systems also causes fluctuations in the reactive power value, which must be compensated. Commonly used compensation choke systems also introduce additional active power losses, which makes the expected savings lower than expected. In the article, the authors presented selected results of measurements of the electrical parameters of LED luminaires, carried out both in the laboratory and in used road lighting circuits. The determined amounts of active power losses caused by the installation and operation of additional equipment in the road lighting installation, such as compensating chokes, are presented. The calculations were made based on the example of a selected fragment of the audit of this installation. On this basis, modernization was carried out and measurements of current electricity quality parameters were carried out.

Keywords: energy quality; current harmonics; discharge luminaires; LED luminaires; lighting installations (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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