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On voltage instability caused by static bifurcation at OLTC node

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3 Author(s)
N. Yorino ; Hiroshima Univ., Japan ; H. Sasaki ; J. Kubokawa

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

Published in:

Advances in Power System Control, Operation and Management, 1993. APSCOM-93., 2nd International Conference on

Date of Conference:

7-10 Dec 1993