Title :
A fast method for electromechanical eigenvalue calculation of large power system
Author :
Shuqiang, Zhao ; Xianrong, Chang ; Jiadong, Huang
Author_Institution :
North China Electr. Power Univ., Hebei, China
Abstract :
The analytical expression of the real part of an electromechanical mode eigenvalue is derived from complex mode analysis. Based on the analytical expression, a fast method for electromechanical mode eigenvalue calculation is proposed. The method represents the effects of excitation control with additional equivalent damping coefficient. Then the eigenvalues can be calculated with the state matrix of a power system when generators are represented by the classical model. As the dimension of the state matrix is very low, the method is fast in calculation and can be used in large power systems. A 24-machine power system is employed to demonstrate the effectiveness of the fast method.
Keywords :
eigenvalues and eigenfunctions; matrix algebra; power system analysis computing; complex mode analysis; computer simulation; equivalent damping coefficient; excitation control; fast electromechanical eigenvalue calculation method; large power systems; state matrix; Damping; Eigenvalues and eigenfunctions; Equations; Frequency; Power generation; Power system analysis computing; Power system modeling; Power system stability; Power systems; Rotors;
Conference_Titel :
Power System Technology, 2002. Proceedings. PowerCon 2002. International Conference on
Print_ISBN :
0-7803-7459-2
DOI :
10.1109/ICPST.2002.1047268
