Title :
Homoclinic Loop and Degenerate Hopf Bifurcations Introduced by Load Dynamics
Author :
Sakellaridis, N.G. ; Karystianos, M.E. ; Vournas, C.D.
Author_Institution :
Sch. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens, Athens, Greece
Abstract :
This letter presents the occurrence and properties of a homoclinic loop bifurcation in a simple power system with induction motor and load tap changer (LTC). This global bifurcation is accompanied by the emergence of an unstable limit cycle, or the disappearance of a stable one. It is also shown that it may coincide with a Hopf bifurcation condition yielding a codimension-2 degenerate Hopf bifurcation.
Keywords :
bifurcation; induction motors; Hopf bifurcation condition; global bifurcation; homoclinic loop bifurcation; induction motor; load tap changer; Bifurcation surface; degenerate Hopf bifurcation; homoclinic loop; load dynamics;
Journal_Title :
Power Systems, IEEE Transactions on
DOI :
10.1109/TPWRS.2009.2030255
