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  4. Experimental Studies of Power Quality Indicators of Autonomous Low-Power Generators

Experimental Studies of Power Quality Indicators of Autonomous Low-Power Generators

JEECS.
2025;
Volume 11, Number 1
: pp. 27 – 32
https://doi.org/10.23939/jeecs2025.01.027
Received: April 16, 2025
Revised: May 21, 2025
Accepted: June 17, 2025

I. Hlad, V. Tsykh, Y. Batsala. (2025) Experimental studies of power quality indicators of autonomous low-power generators. Energy Engineering and Control Systems, Vol. 11, No. 1, pp. 27 – 32. https://doi.org/10.23939/jeecs2025.01.027

Authors:
  1. Ivan Hlad
  2. Vitalii Tsykh
  3. Yaroslav Batsala
1
Ivano-Frankivsk National Technical University of Oil and Gas
2
Ivano-Frankivsk National Technical University of Oil and Gas
3
Ivano-Frankivsk National Technical University of Oil and Gas

Experimental studies of the main indicators of power quality at the terminals of autonomous low-power generators were carried out. The content of higher voltage harmonics, as well as voltage and frequency deviations from the nominal value were determined. In the course of the research, the technical means of data collection and analysis by National Instruments were used. The main indicators of the power quality of autonomous inverter generators are shown to fully comply with the EN 50160-2022 standard. It is established that the voltages of even harmonics of the studied autonomous generators are absent in all operating modes. As a result of the experimental studies, it was found that with an increase in the connected load, the content of higher harmonics in inverter generators slightly increases, but the amount of distortion does not exceed the permissible values. It has also been found that with an increase in the electrical load of synchronous generators, the magnitude of voltage curve distortions is significantly reduced compared to the no-load voltage. Based on the studies, to reduce the content of higher voltage harmonics, it is advisable to connect electrical consumers with an active load character, which will allow powering parallel devices sensitive to higher harmonics.

power quality
measurements
synchronous generator
inverter
harmonics
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