Особливості розрахунку спотворення сигналу в електронній системі

• Date: 2025
• Main Authors: Заячук, Ігор, Благітко, Богдан
• Format: Article
• Language: English
• Published: Kamianets-Podilskyi National Ivan Ohiienko University 2025
• Online Access: http://mcm-tech.kpnu.edu.ua/article/view/347633
• Journal Title: Mathematical and computer modelling. Series: Technical sciences

The preence of interfering loads in low, medium, and high voltage networks leads to an increase in harmonic distortion and asymmetry of transmission levels. Economic reasons make it difficult to install harmonic measurement devices throughout the entire system. Instead, harmonic measurement equipment could be installed in selected sections of the network, covering only a fraction of the blocks. These devices can then be used to estimate harmonic current injection. This article presents a method to determine the optimal parameters for installing harmonic voltage measurement devices. A key characteristic of programs for calculating the harmonic coefficient is the sensitivity threshold, which is primarily determined by rounding errors. A numerical experiment was conducted to analyze the dependence of the harmonic distortion coefficient on the parameters of the computational process. Based on the ADC configuration, the device's limitations for experimentally determining the harmonic distortion coefficient are simulated. The error that occurs due to rounding when determining the harmonic coefficient of a function is also investigated. For a given number of digits ADC, the value of the sensitivity threshold for the harmonic coefficient significantly exceeds the analytically obtained value of the absolute error