Power system transient stability analysis of stiff systems using the Multirate method

stability;power systems;Multirate method;stiffness

Westendorf, Alexander M. ; Overbye ; Thomas J.

关键词: stability;    power systems;    Multirate method;    stiffness;   

Others  :  https://www.ideals.illinois.edu/bitstream/handle/2142/29671/Westendorf_Alexander.pdf?sequence=1&isAllowed=y

美国|英语

来源: The Illinois Digital Environment for Access to Learning and Scholarship

【 摘 要 】

Power system transient stability studies are complex and can take a substantial amount oftime to simulate. The Multirate integration method is one way to speed up simulation studies.This thesis studies the effects of using a type of Multirate simulation method in a softwarepackage. In this study, the Multirate method is used mainly on simulating fast transientsresulting from excitation models. Proper subinterval values to maintain stability in PowerWorldSimulator are established for exciter eigenvalue ranges. Subintervals are applied to excitermodels of a 16,386 bus system based on exciter eigenvalues. Application of the Multiratemethod on exciters provides a time savings for each time step, with the largest being a 10 percentfaster solution when using a one cycle per second time step.