Title :
On voltage instability caused by static bifurcation at OLTC node
Author :
Yorino, N. ; Sasaki, H. ; Kubokawa, J.
Author_Institution :
Hiroshima Univ., Japan
Abstract :
This paper investigates power system voltage instability in the presence of an on-load tap-changer (OLTC). The sensitivity of load voltage to tap position, dv/dn (ΔI), is investigated associated with the static bifurcation at the OLTC node. It is shown, through an eigenvalue analysis, that the points I=±∞ correspond to the static bifurcation condition which is caused by the dynamics of the load at the bus controlled by the OLTC
Keywords :
bifurcation; eigenvalues and eigenfunctions; load (electric); power system stability; eigenvalue analysis; load voltage; on-load tap-changer; power system voltage instability; sensitivity; static bifurcation; tap position;
Conference_Titel :
Advances in Power System Control, Operation and Management, 1993. APSCOM-93., 2nd International Conference on
Conference_Location :
IET
Print_ISBN :
0-85296-569-9
