Title :
Multilevel converters as series VAr compensators
Author :
Mwinyiwiwa, Bakari ; Wolanski, Zbigniew ; Ooi, Boon-Teck ; Chen, Yiqiang
Author_Institution :
Dept. of Electr. Eng., McGill Univ., Montreal, Que., Canada
Abstract :
This paper presents experimental results of a multilevel converter applied as a series static VAr compensator (SVS or STATCOM). An outer feedback loop maintains the VAr operating condition and inner feedback loops equalize the DC capacitor voltages. The delta connection of the transformer secondaries provide paths for zero sequence currents to flow. The tests show its capability for operation under normal balanced condition and under faulted conditions of single line and double line outages
Keywords :
feedback; power convertors; power transmission lines; static VAr compensators; voltage control; 6-level converters; DC capacitor voltages equalisation; STATCOM; VAr operating condition; delta connection; double line outages; faulted conditions; inner feedback loops; multilevel converter; normal balanced condition; outer feedback loop; radial transmission lines; series static VAr compensators; single line outages; transformer secondaries; zero sequence currents; Automatic voltage control; Capacitors; Digital simulation; Feedback loop; Matrix converters; Power transmission lines; Reactive power; Switching converters; Thyristors; Voltage control;
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.1997.616746
