Power stage and control design for the ETO-based cascaded-multilevel converter for FACTS applications

Author

Sirisukprasert, Siriroj ; Liu, Yunfeng ; Xu, Zhenxue ; Zhang, Bin ; Zhou, Xigen ; Hawley, Josh ; Huang, Alex Q.

Author_Institution

Dept. of Electr. & Comput. Eng., Virginia Polytech. Inst. & State Univ., USA

Volume

3

fYear

2004

fDate

14-16 Aug. 2004

Firstpage

1111

Abstract

This paper proposes 1.5 MVA emitter turn-off (ETO) thyristor-based H-bridge building blocks (HBBB) to demonstrate the performance of the ETO and the feasibility of the cascaded-multilevel converter (CMC) for high-power applications. Several applications for the ETO-based HBBB in flexible AC transmission system (FACTS) and medium-voltage adjustable speed drive (ASD) are discussed. Three HBBB prototypes are implemented and tested. The experimental results demonstrate the potential advantages of the HBBB for the utility applications. The modeling and feedback control for the STATCOM utilizing the ETO-based three-level cascaded converter are presented. The accuracy of the corresponding model and the superior performance of the feedback controller are verified by both simulation and experimental results.

Keywords

controllers; feedback; flexible AC transmission systems; power transmission control; static VAr compensators; thyristor convertors; variable speed drives; 1.5 MVA; ASD; FACTS; H-bridge building blocks; STATCOM; cascaded-multilevel converter; control design; emitter turn-off thyristor; feedback controller; flexible AC transmission system; integrated gate-commutated thyristor; medium-voltage adjustable speed drive; static compensator;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference, 2004. IPEMC 2004. The 4th International

Conference_Location

Xi´an

Print_ISBN

7-5605-1869-9

Type

conf

Filename

1376894