{'fraction_non_alphanumeric': 0.024464831804281346, 'fraction_numerical': 0.0, 'mean_word_length': 5.819444444444445, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Design-Oriented Dynamical Analysis of Single-Phase H-Bridge Inverter

This paper reports the slow- and fast-timescale instabilities of a single-phase voltage-mode controlled H-bridge inverter. A comprehensive view and derivation of different dynamical regimes, stability boundary, stable and different types of unstable zones existing in power and control-circuit parameter spaces are obtained through Filippov’s method facilitating selection of parameters for avoiding undesirable and unstable behaviors. Fast-timescale instability manifests as a localized period-doubling bifurcation gradually spreading through the whole line cycle with increasing bifurcation parameter values. Critical phase angles at which this develop are determined by Filippov’s method. Slow-scale Hopf-bifurcation through border-collision resulting in large THD has also been witnessed. Bifurcation diagrams have been plotted to give a panoramic view of various dynamical behaviors at switching frequency.