Damping of parallel AC-DC power system oscillations using LQG/LTR controller approach

Author

Rahmani, Kamran ; Naderi, M.S. ; Gharehpetian, G.B.

Author_Institution

Electr. Eng. Dept., Amirkabir Univ. of Technol., Tehran, Iran

fYear

2011

fDate

17-19 May 2011

Firstpage

1

Lastpage

1

Abstract

HVDC transmission systems can overcome some inherent limitations of AC transmission systems such as transmission between over long distances and transmission via cables. One of the important aspects of HVDC systems is the improvement of stability can be achieved by AC/DC transmission systems. This paper presents a new LQG/LTR robust controller method, which can be used for small signal stability improvement of AC/DC systems. The results demonstrate that significant improvements in either of oscillatory and dynamic stability have been obtained. The capability of the suggested method and designed controller has been verified by simulation results.

Keywords

HVDC power transmission; control system synthesis; damping; linear quadratic Gaussian control; oscillations; power system dynamic stability; power transmission control; robust control; AC transmission systems; HVDC transmission systems; LQG controller; LTR controller; damping; dynamic stability; parallel AC-DC power system; power system oscillations; robust controller; AC/DC Power System; LQG/LTR Control; damping controller; power system oscillations;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering (ICEE), 2011 19th Iranian Conference on

Conference_Location

Tehran

Print_ISBN

978-1-4577-0730-8

Type

conf

Filename

5955775