Title :
Stabilizing controller input delay effect on wide-area stability control
Author :
Snyder, A.F. ; Ivanescu, D. ; Hadjsaid, N. ; Georges, D. ; Margotin, T.
Author_Institution :
LEG/Elesa, Grenoble, France
Abstract :
This paper explores the problem of input delay for a robust stabilizing controller including synchronized measurements. The proposed controller replaces a standard power system stabilizer and is shown to maintain the stability of an interconnected power system under both normal and severe operating conditions. This performance is accomplished through the inclusion of measurements from several points in the power system and the application of advanced linear matrix inequality algorithms. The proposed controllers are designed to be robust and effective even when presented with delayed input signals. The proposed controllers were conceived for and tested on a 4-machine test power system with regard to their ability to damp the interarea oscillations present in the test systems and to allow an increase in tie-line power flow without a loss of stability.
Keywords :
control system analysis; control system synthesis; load flow control; matrix algebra; power system control; power system interconnection; power system stability; robust control; advanced linear matrix inequality algorithms; input delay; input delay effect; interarea oscillation damping; interconnected power system; operating conditions; performance; robust stabilizing controller; tie-line power flow; wide-area power system stability control; Control systems; Delay effects; Linear matrix inequalities; Power measurement; Power system interconnection; Power system measurements; Power system stability; Robust control; Signal design; System testing;
Conference_Titel :
Electric Power Engineering, 1999. PowerTech Budapest 99. International Conference on
Conference_Location :
Budapest, Hungary
Print_ISBN :
0-7803-5836-8
DOI :
10.1109/PTC.1999.826537