High-speed de-excitation system for brushless synchronous machines

被引：16
|
作者：
Platero, C. A. [1 ]
Redondo, M. [2 ]
Blazquez, F. [1 ]
Frias, P. [3 ]
机构：
[1] Univ Politecn Madrid, Dept Elect Engn, ETSII, Madrid, Spain
[2] ESELEC Ingenieros, Madrid, Spain
[3] Univ Pontificia Comillas, Inst Invest Tecnol, Madrid, Spain
来源：
IET ELECTRIC POWER APPLICATIONS | 2012年 / 6卷 / 03期
关键词：
EXCITATION SYSTEM; TESTS;
D O I：
10.1049/iet-epa.2011.0088
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：
This study presents a novel high-speed de-excitation system for brushless synchronous machines, where the de-excitation time constant can reach values of several seconds. In these conditions, despite the proper operation of the protection system, the slow de-excitation time constant may produce severe damage in the event of an internal short circuit. With the proposed system, a rapid de-excitation is achieved by inserting a resistance in the field circuit, obtaining a response similar to that in machines with static excitation. This system has been validated through computer simulations and experimental laboratory tests.
引用
收藏
页码：156 / 161
页数：6
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