A control strategy for three-level VSC-HVDC system

Author

Liu, Hongtao ; Xu, Zheng ; Gao, Zhi

Author_Institution

Dept. of Electr. Eng., Zhejiang Univ., Hangzhou, China

Volume

1

fYear

2002

fDate

25-25 July 2002

Firstpage

480

Abstract

This paper discusses the fundamental principles of the active and reactive power control for three-level VSC (voltage source converter) based HVDC system. The three-level converter structure is employed to enhance the transmission capacity of the VSC-HVDC system. With the proposed three-level VSC-HVDC system, the corresponding control strategy is presented. Based on this control strategy, appropriate controllers utilizing PI controllers are designed to control the active and reactive power at each end station. Digital simulation is done to verify the validity of the proposed control strategy and controllers.

Keywords

HVDC power convertors; HVDC power transmission; control system analysis computing; control system synthesis; power control; power system analysis computing; power transmission control; reactive power control; two-term control; PI controllers; active power control; computer simulation; control simulation; control strategy; reactive power control; three-level VSC-HVDC system; transmission capacity; Control systems; Converters; Digital simulation; HVDC transmission; Power conversion; Power harmonic filters; Reactive power; Reactive power control; Steady-state; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering Society Summer Meeting, 2002 IEEE

Conference_Location

Chicago, IL, USA

Print_ISBN

0-7803-7518-1

Type

conf

DOI

10.1109/PESS.2002.1043280

Filename

1043280