Title :
Application of variable structure control techniques for improving power system dynamic stability
Author :
Samarasinghe, V.G.D.C. ; Pahalawaththa, N.C.
Author_Institution :
Dept. of Electr. & Electron. Eng., Auckland Univ., New Zealand
Abstract :
This paper presents a study on the application of variable structure control techniques for improving power system dynamic stability. The basic concepts of variable structure control are discussed. The procedure of designing a variable structure controller for the linearized model obtained by linearizing the nonlinear characteristics of a synchronous machine connected to infinite busbar is explained. The possibility of a controller which would guarantee proper operation irrespective of machine output power, transmission line reactance and infinite bus voltage is discussed. The results of the simulation studies show that with the proposed controller, the stability of the synchronous machine is improved significantly.<>
Keywords :
busbars; control system analysis; control system synthesis; linear systems; linearisation techniques; multivariable control systems; power system control; power system stability; power transmission lines; synchronous generators; variable structure systems; design; infinite bus voltage; infinite busbar; linearized model; machine output power; nonlinear characteristics; power system dynamic stability; simulation; synchronous machine; transmission line reactance; variable structure control; Control systems; Electric variables control; Power engineering and energy; Power generation; Power system dynamics; Power system modeling; Power system simulation; Power system stability; Synchronous machines; Voltage control;
Conference_Titel :
TENCON '93. Proceedings. Computer, Communication, Control and Power Engineering.1993 IEEE Region 10 Conference on
Conference_Location :
Beijing, China
Print_ISBN :
0-7803-1233-3
DOI :
10.1109/TENCON.1993.320612
