Damping improvement by FACTS devices: A comparison between STATCOM and SSSC

被引:42
|
作者
Haque, MH [1 ]
机构
[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Ctr Adv Power Elect, Singapore, Singapore
关键词
damping; dynamic analysis; energy function; FACTS; SSSC; STATCOM;
D O I
10.1016/j.epsr.2005.11.001
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
Following a disturbance, the machines in a stable power system initially oscillate, and then settle at the stable equilibrium point where the transient energy is zero. This paper uses the rate of dissipation of transient energy as a measure of system damping. The above concept is then applied to determine the additional damping provided by a static synchronous compensator (STATCOM) and a static synchronous series compensator (SSSC). Analytical expressions for additional damping provided by these devices are carefully derived and compared for classical model of a simple power system. The proposed technique of evaluating system damping is then tested on a single-machine system and for some special faults in the 10-machine New England system. The results obtained in both the systems are then systematically described. (C) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:865 / 872
页数:8
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