Open AccessNew direct regular‐sampled pulse‐width modulation applicable for grid and islanding operation of current source inverters
Author(s) -
Azmi Syahrul Ashikin,
Adam Grain Philip,
Williams Barry
Publication year - 2014
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.2013.0235
Subject(s) - pulse width modulation , modulation (music) , dwell time , inverter , computer science , grid , islanding , power (physics) , control theory (sociology) , direct current , electronic engineering , flexibility (engineering) , basis (linear algebra) , voltage source , topology (electrical circuits) , voltage , mathematics , engineering , electrical engineering , physics , electric power system , acoustics , geometry , medicine , clinical psychology , statistics , control (management) , quantum mechanics , artificial intelligence
This study presents new direct regular‐sampled pulse width modulation (DRSPWM) for grid connected three‐phase current source inverters. The theoretical basis of the presented modulation strategy is described in detail and includes dwell time calculations and switching sequence selection. The modulation strategy is simple and suited for digital implementation, and has the flexibility and degree of freedoms of space vector modulation. This is because some switch sequences ensure a minimum number of switching transitions per fundamental cycle, unlike other methods presented in the literature. It is therefore applicable for high‐power medium‐voltage applications. The validity of the presented DRSPWM is confirmed using simulation and experimentation of a current source inverter, in open and closed‐loop operations.