计及感应电动机负荷的静态电压稳定性分析 - s1 g2 w5 P5 \) M- o孙华东1, 周孝信1,李若梅2+ {, B- J) h& X
(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)) b; c* z' z5 T( d9 A
STATIC VOLTAGE STABILITY ANALYSIS CONSIDERING INDUCTION # M- p1 i' }5 {9 ^8 ^1 WMOTOR LOADS 1 H6 N/ d x# w+ }. cSUN Hua-dong1, ZHOU Xiao-xin1, LI Ruo-mei2 / W5 k; ]' c- G/ j2 ~1 f(1. Electric Power Research Institute, Haidian District, Beijing 100085, China; ; ]6 _- m- E& I3 {/ W3 L% U' m D2. Chinese Society of Electrical Engineering, Xuanwu District, Beijing 100761, China) $ p1 ^, N( K- a7 Z( f% WABSTRACT: A small disturbance voltage stability analysis 8 f) ~: y9 F9 R6 imathematical model of single load and infinite bus system is 7 w. o3 [' i1 `( @! U5 A6 G6 E: o& Mpresented including electromechanical transient model of $ y9 Y/ U/ b% finduction motor. The influence of induction motor parameters8 O3 s# W8 ^, B: I7 ^" O, l9 \* v
on eigenvalues on a simple power system is analyzed. The ( ], U0 i$ D8 M& e, icommon physical essence of static voltage stability indices 0 @! `# r7 x H3 pbased on power flow model is illustrated on a simple system." S: F, x5 {. X. d# M: J- L
The accuracy of static voltage stability indices based on power ; W+ T3 v+ i* u( B% r' x. Q9 O0 mflow model is analyzed by small disturbance voltage stability3 B, e5 w8 J( ~9 }! q
analysis and dynamic simulation with different parameters of ' i) a: C% w a* g. Minduction motor. The results show that static indices based on / U; x0 t- y$ Z4 [power flow model is not accurate. The system may lose voltage 7 `0 s0 T, X$ ~" r, Zstability which the static indices regard it is voltage stability. 3 Z4 ?/ j% D$ l5 S1 V" sThe small disturbance voltage stability analysis mathematical0 Z' d; ^9 v5 z; F0 Y( _ a" `0 S& V
model in this paper is simplified analysis. It is expected to be9 X* f( o6 p& D% P. `+ \: f3 i3 P
used in the on-line environment in the future