Power oscillations damping by means of the SSSC: a multivariable control approach

Author

Ghaisari, J. ; Bakhshai, A. ; Jain, P.K.

Author_Institution

Isfahan Univ. of Technol.

fYear

2005

fDate

1-4 May 2005

Firstpage

2249

Lastpage

2252

Abstract

Power oscillations are a common dynamic phenomenon which increase the risk of instability and thus reduce the power transfer capacity of power systems. In this paper, a multivariable model for a power system installed with a SSSC is developed The SSSC is employed to increase power oscillations damping. Then, a multi-input multi-output (MIMO) controller is designed to increase power oscillations damping in addition to DC-link voltage regulation. Simulation results verify the validity of the developed modeling, and shows that the proposed MIMO controller can successfully damp out power system oscillations. In addition, superior performance and robustness are achieved in compare with SISO controllers when operating point of the power system is changed

Keywords

damping; multivariable control systems; oscillations; power system control; robust control; static VAr compensators; voltage control; DC-link voltage regulation; MIMO controller; SISO controllers; SSSC; multiinput multioutput controller; multivariable control approach; power oscillations damping; power transfer capacity reduction; Control systems; Damping; MIMO; PSCAD; Power system dynamics; Power system modeling; Power system simulation; Power transmission lines; Pulse width modulation inverters; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 2005. Canadian Conference on

Conference_Location

Saskatoon, Sask.

ISSN

0840-7789

Print_ISBN

0-7803-8885-2

Type

conf

DOI

10.1109/CCECE.2005.1557436

Filename

1557436