Dynamic Characteristics of Â±800kV DC Transmission System under Single Phase Breaker Failure Action

Author

Shu, H.C. ; Sun, S.Y. ; Liu, K.Z. ; Zhang, G.B. ; Zhu, Z.Z. ; Si, D.J.

Author_Institution

Sch. of Electr. Eng., Kunming Univ. of Sci. & Technol., Kunming

fYear

2009

fDate

27-31 March 2009

Firstpage

1

Lastpage

4

Abstract

Severe impact will be brought to hybrid AC/DC system when three-phase faults occur and single-phase breaker refuse to act, especially when disturbances are near DC converter. To perform the dynamic characteristics study under such condition, electromagnetism transient model of Yun-Guang plusmn800 kV DC transmission system is established, and dynamic characteristics of DC system such as DC power, voltage of converter bus and commutation failure condition are calculated and analyzed, when faults respectively occur on head and end terminal of transmission line near inverter. DC dynamic characteristics under different control mode are also compared. DC power is higher when constant power control mode is used comparing with constant current control mode, while reactive power consumed by converters are higher after disturbance under constant power control. And it will provide reference to the operation of plusmn800 kV DC transmission system.

Keywords

DC transmission networks; circuit breakers; electric current control; reactive power control; DC converter; DC transmission system; Yun-Guang; constant current control mode; constant power control mode; electromagnetism transient model; hybrid AC/DC system; reactive power; single phase breaker failure action; three-phase faults; transmission line; DC-DC power converters; Electromagnetic analysis; Electromagnetic modeling; Failure analysis; Power control; Power system modeling; Power system transients; Transient analysis; Voltage; Waste materials;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference, 2009. APPEEC 2009. Asia-Pacific

Conference_Location

Wuhan

Print_ISBN

978-1-4244-2486-3

Electronic_ISBN

978-1-4244-2487-0

Type

conf

DOI

10.1109/APPEEC.2009.4918299

Filename

4918299