Stability analysis of multi-infeed HVDC system applying VSC-HVDC

Author

Liu, Yan ; Chen, Zhe

Author_Institution

Dept. of Energy Technol., Aalborg Univ., Aalborg, Denmark

fYear

2010

fDate

25-29 July 2010

Firstpage

1

Lastpage

7

Abstract

This paper presents a general model of dual infeed HVDC system applying VSC-HVDC, which can be used as an element in large multi infeed HVDC system. The model may have different structure under different grid faults because of the action of breakers. Hence power flow of the system based on this model is analyzed under steady state and different kinds of grid fault transient situations. Two main control methods applied on VSC-HVDC link in this dual infeed HVDC system are investigated, and comparative analysis of them under transient situation is presented. A simulation model is built in PSCAD/EMTDC to verify the theoretical analysis. Simulation results indicate that this dual infeed HVDC system can realize higher stability than single infeed HVDC system. And different control strategies on a VSC-HVDC link may result in different influence on AC voltage and active power oscillation during transient situation.

Keywords

HVDC power convertors; power grids; power system simulation; power system transient stability; power transmission faults; AC voltage; EMTDC; PSCAD; VSC-HVDC; active power oscillation; grid faults; multi-infeed HVDC system; power flow; stability analysis; transient situation; voltage source converter; HVDC; Transmission system; VSC-HVDC; multi-infeed HVDC; voltage stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Society General Meeting, 2010 IEEE

Conference_Location

Minneapolis, MN

ISSN

1944-9925

Print_ISBN

978-1-4244-6549-1

Electronic_ISBN

1944-9925

Type

conf

DOI

10.1109/PES.2010.5590181

Filename

5590181