Open AccessNovel asymmetric space vector pulse width modulation for dead-time processing in three-phase power converters
Author(s) -
Indriarto Yuniantoro,
Mochammad Haldi Widianto
Publication year - 2022
Publication title -
international journal of power electronics and drive systems/international journal of electrical and computer engineering
Language(s) - English
Resource type - Journals
eISSN - 2722-2578
pISSN - 2722-256X
DOI - 10.11591/ijece.v12i3.pp2346-2352
Subject(s) - pulse width modulation , converters , duty cycle , modulation (music) , tetrahedron , power (physics) , cylinder , voltage , control theory (sociology) , null vector , compensation (psychology) , mathematics , topology (electrical circuits) , computer science , physics , geometry , combinatorics , artificial intelligence , acoustics , control (management) , quantum mechanics , psychology , psychoanalysis
This research analyzes the asymmetric control strategies in multilevel inverters, including asymmetric techniques in space vector modulation of power converters. Modulation parameters such as reference voltage vector (Vref), switching time, and duty cycle are derived in the three-dimensional spatial vector geometry formulation. Asymmetric space vector pulse width modulation (SVPWM) is unique in specifying modulation parameters, has unequal tetrahedron patterns, accompanied by application examples for the upper and lower sector pairs of a tetrahedron. The combination of the switch in the form of an inclined cylinder produces twelve pairs of asymmetric tetrahedrons where the voltage vector positions are in the other twenty-four tetrahedrons. The calculation shows processing dead-time in switching, which is used for current compensation in three-phase power converters.