Modeling, analysis and control of static VAr compensator using three-level inverter

Author

Cho, Guk C. ; Choi, Nam S. ; Rim, Chun T. ; Cho, Gyu H.

Author_Institution

Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea

fYear

1992

fDate

4-9 Oct 1992

Firstpage

837

Abstract

A novel static VAr compensator (SVC) system using a three-level inverter is proposed for high-voltage and high-power applications. A general and simple model for the overall system is obtained using the circuit DQ-transform, and DC and AC analyses are performed to characterize the open-loop system. Using the proposed model, a novel control method which controls both the phase angle and the modulation index of the switching pattern simultaneously is suggested to provide fast response of the SVC system without using the independent voltage source. Predicted results are verified by computer simulation

Keywords

digital simulation; invertors; power system analysis computing; power system control; static VAr compensators; AC analyses; DC analyses; DQ-transform; computer simulation; control; high-power; high-voltage; open-loop system; phase angle control; static VAr compensator; three-level inverter; Equivalent circuits; Inverters; Open loop systems; Power system modeling; Reactive power; Resistors; Static VAr compensators; Switches; Switching circuits; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 1992., Conference Record of the 1992 IEEE

Conference_Location

Houston, TX

Print_ISBN

0-7803-0635-X

Type

conf

DOI

10.1109/IAS.1992.244310

Filename

244310