Individual‐phase control of 3‐phase 4‐wire voltage–source converter. Issue 9 (1st September 2014)

• Record Type: Journal Article
• Authors: Fazeli, Seyed Mahdi; Ping, Hew Wooi; Rahim, Nasrudin Bin Abd; Ooi, Boon Teck
• Is Part Of: IET power electronics. Volume 7:Issue 9(2014)
• Page Start: 2354
• Page End: 2364
• Publication Date: 2014-09-01
• Subjects: phase control -- static VAr compensators -- electric potential -- power transmission lines -- power transmission control -- power convertors; 3‐phase 4‐wire voltage source converter -- degree of control freedom -- asymmetrical operating conditions -- D‐STATCOM -- unbalanced 3‐phase load -- voltage droop -- complex power equalisation -- transmission line -- voltage magnitude balance -- AC voltage angle balance -- point of common coupling -- decoupled Pâ€"Q individual phase control; Power electronics -- Periodicals; 621.31705
• DOI: 10.1049/iet-pel.2013.0973
• Languages: English
• ISSNs: 1755-4535

Abstract

Abstract : 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.