Signal quantization model for controlling power electronic circuits in digital signal processing

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Authors: Wen Lu
Cited by: 0
References: 25

Abstract

This article discusses some key points of digital signal processing as it pertains to power electronics' digital control circuits.In this paper, we will go over some common issues with signal sampling, coherent sampling, sampling rate, jitter of the sampling pulse, successive vs. simultaneous collecting in a multichannel structure, resolution of the signal, interpolation while decimation, and digitization of analog circuits.But since they don't account for dynamic shifts and don't decrease interference, current signal estimate techniques can't provide reliable parameter data.In order to achieve high-precision signal parameter identification along with offering data for programs like wide-frequency fluctuation evaluation and enhancing energy efficiency issues, this work proposes a broadband indicate analysis approach that considers essential wave dynamics and reduces interference.To begin, knowledge about the waveforms and frequencies of the different components is extracted using the variational modal decomposition.Second, adjust the midrange frequencies so that they function as filters.Lastly, parameter estimation of wideband signals is accomplished using the least square approach.Noise, frequency dynamics modulation, frequency ramp changes, and other conditions are used to test the efficiency of the algorithm.The suggested approach successfully estimates the broadband signal's parameters with total vector errors of less than 3%, according to the results of the simulation.An improved method for determining the output signal-to-noise ratio in digital control circuits with three stages is detailed in this work.By taking these error sources into account and fixing them, we can reduce distortion and increase the signal-to-noise ratio, which improves the parameters of the output/input current and voltage and, in turn, the quality of the energy analyzing in power electronic devices.

Fields of Study & Subjects

Advanced Electrical Measurement Techniques Power Quality and Harmonics Multilevel Inverters and Converters

Publication details

Journal / source
Diagnostyka
Volume
27
Issue
1
Pages
1–13
Publication date
12 March 2026
Language
EN