Open AccessRealisation and Approbation of Conditionally Constant Coefficients Method for Loss Counter Measuring Tools
Author(s) -
S. S. Kostinskiy,
Danil Shaykhutdinov,
E. V. Kirievskiy,
Y. M. Manatskov,
Nuri Narakidze
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/665/1/012004
Subject(s) - harmonics , constant current , transformer , electrical engineering , voltage , distribution transformer , harmonic , power factor , constant (computer programming) , ac power , switched mode power supply , power (physics) , computer science , control theory (sociology) , electronic engineering , engineering , physics , acoustics , control (management) , artificial intelligence , programming language , quantum mechanics
To date, electrical power in a form of higher-order current harmonics and voltage are reported to be worsening substantially in power lines of industrial and non-commercial consumers. This fact relates to the change of power consumer types to use different household and industrial power receivers. Higher-order harmonic current components cause extra losses in transformers. As a consequence, electrical power delivery is less efficient and losses increase. Therefore, it is necessary to measure harmonic components of current and voltage in distribution networks. The paper presents a measuring tool of loss counter developed on the base of constant coefficients method. Performance and relative accuracy were studied experimentally using a variable-speed drive with the results reported in the paper. The developed measuring tool meets the standards of admitted relative accuracy and is applicable to implement conditionally constant coefficients method in order to calculate excessive losses to be caused by non-sinusoidal loads in transformers of distribution networks.