Open AccessAlgorithm for determining the conductive low-frequency electromagnetic interference in electrical networks
Author(s) -
Dmitry Yu. Rudi,
S. V. Gorelov,
K. V. Khatsevskiy
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1901/1/012077
Subject(s) - harmonics , harmonic , electrical conductor , component (thermodynamics) , voltage , electromagnetic interference , computer science , electric power quality , electromagnetic field , power (physics) , electric power , interference (communication) , quality (philosophy) , electrical engineering , electronic engineering , acoustics , physics , engineering , channel (broadcasting) , telecommunications , power quality , quantum mechanics , thermodynamics
The electric power systems (EES) of various industrial enterprises for a number of reasons are characterized by low quality of electric energy, in particular, the presence of higher harmonics in the networks, as a result of which conductive low-frequency electromagnetic interference (EMF) occurs. This leads to the problem of the quality of electric energy in the EPS, which negatively affects the electrical equipment. The problem is vast and the question of solving various problems, one of which is the determination of conductive low-frequency electromagnetic fields by the coefficient of the nth harmonic component of the voltage, is not solved. Development of an algorithm for determining the conductive low-frequency EMF by the coefficient of the nth harmonic component of the voltage. This algorithm allows scientifically sound assessment of the electromagnetic environment in electrical networks. Creating a sequence of decisions to determine the quality criterion for the functioning of electric power systems by the coefficient of the nth harmonic component of the voltage. Based on the theory of probability and mathematical statistics, an algorithm has been developed for determining the conductive low-frequency electromagnetic field by the coefficient of the nth harmonic component of the voltage. The developed algorithm is based on the requirements of the international state standard GOST 32144-2013. Using this algorithm, a computer program has been developed that allows the automated calculation of the parameters of the electromagnetic environment (distribution parameters, the probability of their occurrence). Moreover, it makes an automated calculation of such distribution parameters of the values of the coefficient of the nth harmonic component of the voltage as the mean value and standard deviation. Also, the program performs an automated calculation of the probability of the coefficients of the nth harmonic component of the voltage exceeding the normalized values and the probability of the appearance of the conductive low-frequency EMF by the coefficient of the nth harmonic component of the voltage during the calculation period. In turn, it is also able to visualize the data arrays that were obtained in the course of various experimental studies using an oscillogram and a histogram.