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