On reverse control action of on-load tap-changers

被引：1
|
作者：
Yorino, N
Funahashi, A
Sasaki, H
Galiana, FD
机构：
[1] Department of Electrical Engineering, Hiroshima University
[2] Department of Electrical Engineering, McGill University, Montreal
来源：
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS | 1997年 / 19卷 / 08期
关键词：
voltage instability; on-load tap-changer; reverse control action;
D O I：
10.1016/S0142-0615(97)00026-4
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The on-load tap-changer (OLTC) is one of the major elements participating in voltage instability. To assess unstable behavior of OLTC, that is, the reverse control action, the sensitivity of load voltage to tap position, dv/dn, is investigated in two different situations: One is a realistic situation where the exact load characteristics including voltage dependence are used to compute dv/dn. The other is the more ideal situation where dv/dn is calculated assuming constant power lends. It is demonstrated that both sensitivities can be used to assess the occurrence of reverse control action. Line and transformer reactances are the most important factors affecting this condition. The validity of these results is verified through numerical simulations where the dynamic characteristics of OLTC and time varying loads with static nonlinear voltage dependence are taken into account. (C) 1997 Elsevier Science Ltd.
引用
收藏
页码：541 / 548
页数：8
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