Title :
Unified power flow controller (UPFC) based on chopper stabilized multilevel converter
Author :
Chen, Yiqiang ; Mwinyiwiwa, Bakari ; Wolanski, Zbigniew ; Ooi, Boon-Teck
Author_Institution :
Dept. of Electr. Eng., McGill Univ., Montreal, Que., Canada
Abstract :
A system of class B choppers equalizes the DC voltages of the back-to-back multilevel converters of the UPFC thus removing the constraint that the voltages of the series and the shunt converter must operate at a fixed ratio. This allows the UPFC to operate with independent controls over the real power and the reactive powers on both sides. The claims are substantiated by digital simulations and laboratory experiments
Keywords :
choppers (circuits); controllers; load flow; load regulation; power convertors; power system control; power system stability; reactive power control; voltage control; DC voltages equalisation; STATCOM; back-to-back multilevel converters; chopper stabilized multilevel converter; class B choppers; independent controls; reactive power control; real power control; unified power flow controller; Analog-digital conversion; Automatic voltage control; Capacitors; Choppers; Digital simulation; Diodes; Inverters; Load flow; Shunt (electrical); Student members;
Conference_Titel :
Power Electronics Specialists Conference, 1997. PESC '97 Record., 28th Annual IEEE
Conference_Location :
St. Louis, MO
Print_ISBN :
0-7803-3840-5
DOI :
10.1109/PESC.1997.616745
