计及感应电动机负荷的静态电压稳定性分析9 M, @2 Y0 ~5 q: M1 e* c
孙华东1, 周孝信1,李若梅2 & Y) Q3 T- n- B* P& f(1. 中国电力科学研究院,北京市 海淀区100085; 2. 中国电机工程学会, 北京市 宣武区100761) 0 i# W& B, F1 z1 |! V% p; RSTATIC VOLTAGE STABILITY ANALYSIS CONSIDERING INDUCTION. k& O. \, o7 }; T
MOTOR LOADS/ Z: ?, ^' M% l
SUN Hua-dong1, ZHOU Xiao-xin1, LI Ruo-mei2 . g* x+ o& v5 P6 h(1. Electric Power Research Institute, Haidian District, Beijing 100085, China; . x) ~' `4 e: m% d# ?2. Chinese Society of Electrical Engineering, Xuanwu District, Beijing 100761, China) ( K3 t, s) N' ^: \9 h, o5 f$ dABSTRACT: A small disturbance voltage stability analysis; ]) R" O3 m7 r# p) a5 g7 G: Y
mathematical model of single load and infinite bus system is 8 L: U5 T4 D6 r8 b2 {" i+ t4 Q' h; wpresented including electromechanical transient model of# Y# ~: ^3 X: y; R
induction motor. The influence of induction motor parameters5 y' G( a; W, W0 z" {" x
on eigenvalues on a simple power system is analyzed. The % ?- j" r( m: Scommon physical essence of static voltage stability indices3 o3 C5 C8 Q! p
based on power flow model is illustrated on a simple system." ^0 _, ^0 j( S# A# V9 V
The accuracy of static voltage stability indices based on power Y% }& T. o( ^$ S
flow model is analyzed by small disturbance voltage stability+ b+ C+ f0 J* _. j9 q) n( |( F& l2 [3 U! p
analysis and dynamic simulation with different parameters of t) \2 y* \7 t. R
induction motor. The results show that static indices based on a/ W j0 _4 o" Q6 ~power flow model is not accurate. The system may lose voltage ' M% x. H" K8 r+ J% ^stability which the static indices regard it is voltage stability. % }6 V0 {7 H' e0 XThe small disturbance voltage stability analysis mathematical1 H! f2 y5 K' w" [9 @' a7 h
model in this paper is simplified analysis. It is expected to be & a2 W+ ], J0 R9 q% Pused in the on-line environment in the future