Dynamic characteristics of ±800kV DC transmission system under single phase breaker failure action

Author

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

Author_Institution

Dept. of Electr. Power, Harbin Inst. of Technol., Harbin

fYear

2008

fDate

6-7 Oct. 2008

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; power control; DC transmission system; Yun-Guang; constant current control mode; electromagnetism transient model; hybrid AC/DC system; power control mode; reactive power; single phase breaker failure action; single-phase breaker; 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; Ultra- high voltage DC system; dynamic Characteristics; single phase breaker refuse to act;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Power Conference, 2008. EPEC 2008. IEEE Canada

Conference_Location

Vancouver, BC

Print_ISBN

978-1-4244-2894-6

Electronic_ISBN

978-1-4244-2895-3

Type

conf

DOI

10.1109/EPC.2008.4763370

Filename

4763370