Turkish Journal of Electrical
Power and Energy Systems
Research Article

A Digital Filter Design for Reactive Power Measurement


Department of Electrical-Electronics Engineering, Karadeniz Technical University, Trabzon, Turkey

Turkish Journal of Electrical Power and Energy Systems 2023; 3: 69-75
DOI: 10.5152/tepes.2023.23013
Read: 176 Downloads: 64 Published: 22 June 2023

The electric meters used to measure the amount of electricity consumption measure both active and reactive power consumption in the distribution line with current transformers. As in every analog measurement process, in every analog measurement, existing of undesired components such as noises, interferences and harmonics are caused mistakes. In order to remove this undesirable information included in the measurement from the measurement results, digital filters are used in applications because of their performance and their easily replaceable features. In this study, we aimed to remove unwanted components such as noise and interference from the measurement signal. The subject of a commercial project is to design a digital filter in MATLAB® environment, which allows filtering the measurements of reactive power consumption in power distribution lines with less than 1% error. To ensure whether designed filter satisfies for mentioned criteria or not, we used the Gaussian model as a noise model because Gauss noise is spreaded whole frequency spectrum. While the power signal modeled in the design is a sine wave of IPP = 2 A 50 Hz, Gaussian noise with different variances and mean values is used in modeling the unwanted components.

Cite this article as: F. Yıldırım and S. Kahveci, "A digital filter design for reactive power measurement," Turk J Electr Power Energy Syst., 2023; 3(2), 69-75.

EISSN 2791-6049