Title :
A study on nonlinear SVC control for improving power system stability
Author :
Youjie Ma ; Shousun Chen ; Baolin Zhang
Author_Institution :
Dept. of Electr. Eng., Tsinghua Univ., Beijing, China
Abstract :
This paper presents a detailed analysis of two kinds of nonlinear controllers of static VAr compensators (SVCs). Nonlinear SVC controllers are designed employing the direct feedback linearization theory. It is pointed out that SVCs with only voltage control are able to maintain the voltage at their location but cannot produce additional damping torque to the system. By improvement of the nonlinear SVC voltage controller, a new signal modulation type synthetic nonlinear SVC controller has been developed. The synthetical nonlinear controller is able to produce additional damping torque as well as maintain the voltage at an SVC location. Digital simulation results support the analysis of the paper.<>
Keywords :
control system analysis computing; control system synthesis; digital simulation; feedback; linearisation techniques; nonlinear control systems; power control; power system analysis computing; power system control; power system stability; reactive power; static VAr compensators; torque; voltage control; damping torque; design; digital simulation; direct feedback linearization theory; nonlinear controllers; power system stability; signal modulation; static VAr compensators; voltage control; Control systems; Damping; Linear feedback control systems; Nonlinear control systems; Power system analysis computing; Power system control; Power systems; Static VAr compensators; Torque control; 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.1993.320610