Title :
A nonlinear variable structure stabilizer for power system stability
Author :
Cao, Yijia ; Jiang, Lin ; Shijie Cheng ; Deshu Chen ; Malik, O.P. ; Hope, G.S.
Author_Institution :
Dept. of Electr. Power Eng., Huazhong Univ. of Sci. & Technol., Hubei, China
fDate :
9/1/1994 12:00:00 AM
Abstract :
A nonlinear variable structure stabilizer is proposed in this paper. Design of this stabilizer involves the nonlinear transformation technique, the variable structure control technique and linear system theory. Performance of the proposed nonlinear variable structure controller in a single machine connected to an infinite bus power system and a multimachine system with multimode oscillations is simulated. The responses of the system with the proposed stabilizer are compared with those obtained with some other kinds of stabilizers when the system is subjected to a variety of disturbances. Simulation results show that the nonlinear variable structure stabilizer gives satisfactory dynamic performance and good robustness
Keywords :
control system analysis; control system synthesis; nonlinear control systems; power system control; power system stability; variable structure systems; design; disturbances; dynamic performance; infinite bus; linear system theory; multimachine system; multimode oscillations; nonlinear transformation; nonlinear variable structure stabilizer; power system stability; robustness; single machine; Control systems; Control theory; Differential equations; Nonlinear dynamical systems; Power generation; Power system dynamics; Power system modeling; Power system simulation; Power system stability; Robust control;
Journal_Title :
Energy Conversion, IEEE Transactions on
