Open AccessIndividual‐phase control of 3‐phase 4‐wire voltage–source converter
Author(s) -
Fazeli Seyed Mahdi,
Ping Hew Wooi,
Rahim Nasrudin Bin Abd,
Ooi Boon Teck
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.2013.0973
Subject(s) - voltage droop , voltage source , control theory (sociology) , converters , voltage , phase (matter) , three phase , coupling (piping) , point (geometry) , control (management) , computer science , physics , electrical engineering , engineering , mathematics , mechanical engineering , artificial intelligence , geometry , quantum mechanics
An innovative method of operating 3‐phase, 4‐wire voltage–source converters, based on decoupled P–Q control of individual phases, is presented. Individual‐phase control has six independent degrees of control freedom to deal with both symmetrical and asymmetrical operating conditions. Experimental tests on a laboratory distribution static synchronous compensator (D‐STATCOM) show that individual‐phase control can simultaneously (i) support the voltages of unbalanced 3‐phase loads against droop; (ii) equalise the complex powers at source‐side of the transmission line; (iii) balance the voltage magnitudes and (iv) balance the angles of ‘ac’ voltages at the point‐of‐common‐coupling.