Title :
Effect of nonlinear load on design of dynamic compensator for reactive power modulation in AC/DC power system
Author :
Choudhry, M.A. ; Lateef, K.
Author_Institution :
Dept. of Electr. & Comput. Eng., West Virginia Univ., Morgantown, WV, USA
Abstract :
This paper presents a method to design a robust dynamic compensator for reactive power modulation to improve the dynamic performance of an AC/DC power system. The robust dynamic compensator is designed using closed-loop eigenvalue sensitivity with respect to load characteristic. Eigenvalue analysis and simulation results show that a dynamic compensator designed using a constant impedance load model may lead to system instability at constant active power load. However, a robust dynamic compensator improves the system response over a wide range of load characteristics
Keywords :
closed loop systems; compensation; eigenvalues and eigenfunctions; load (electric); power system control; power system stability; reactive power; AC/DC power system; closed-loop eigenvalue sensitivity; constant impedance load model; dynamic compensator; dynamic performance; eigenvalue analysis; eigenvalue simulation; nonlinear load; reactive power modulation; system instability; Analytical models; Design methodology; Eigenvalues and eigenfunctions; Nonlinear dynamical systems; Power system analysis computing; Power system dynamics; Power system modeling; Power system simulation; Reactive power; Robustness;
Conference_Titel :
System Theory, 1994., Proceedings of the 26th Southeastern Symposium on
Conference_Location :
Athens, OH
Print_ISBN :
0-8186-5320-5
DOI :
10.1109/SSST.1994.287916
