Open AccessAnalysis on the effect of external spurious signals in an H‐bridge inverter
Author(s) -
Subramanian Archana,
Govindarajan Uma
Publication year - 2018
Publication title -
iet power electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.637
H-Index - 77
eISSN - 1755-4543
pISSN - 1755-4535
DOI - 10.1049/iet-pel.2017.0689
Subject(s) - spurious relationship , converters , monodromy matrix , matlab , parametric statistics , bifurcation , inverter , electromagnetic interference , control theory (sociology) , power (physics) , computer science , h bridge , coupling (piping) , electronic engineering , engineering , physics , mathematics , nonlinear system , mechanical engineering , eigenvalues and eigenvectors , statistics , control (management) , quantum mechanics , machine learning , artificial intelligence , operating system
Power electronic converters are consistently encountering complex non‐linear behaviours predominantly due to the coupling of electromagnetic interferences (EMIs). The emergence of non‐linear phenomena in a DC–AC H‐bridge inverter under the influence of periodic interference signals at multiple locations is investigated. A detailed analysis is performed to determine the bifurcation boundaries under the influence of spurious signals and parametric variations. The analysis will enable the engineers to select the design parameter cautiously to avoid the occurrence of undesirable instabilities. The converter dynamics are investigated with the help of numerical simulations executed in MATLAB/SIMULINK environment and analytically validated using the concept of monodromy matrix based on Filippov's method of differential inclusion. Simulation and theoretical results are validated experimentally.