Investigation of induction machine contribution to power system oscillations

被引:34
作者
Nomikos, BM [1 ]
Vournas, CD
机构
[1] HTSO, Athens, Greece
[2] Natl Tech Univ Athens, Sch Elect & Comp Engn, Athens 10022, Greece
关键词
induction machines; modal analysis; modal interaction; power system stabilizers (PSS); small-signal stability;
D O I
10.1109/TPWRS.2005.846120
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
Incorporation of load dynamics in stability studies is necessary nowadays, especially due to the increased use of induction machines in both consumption and generation. This paper investigates power system small-signal stability, considering induction machines as dynamic elements. Linear coefficients are proposed that are convenient for both quantitative and qualitative single machine-infinite bus studies. These coefficients are expanded into matrices in the case of multimachine systems, where the off-diagonal elements represent the interaction between machines. Modal interaction between induction machines, as well as between induction and synchronous machines, is investigated. It is shown that a large proportion of induction machines in a realistic power system significantly affects the interarea electromechanical mode and, consequently, the power system stabilizer design.
引用
收藏
页码:916 / 925
页数:10
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