Dynamic Load Modeling for KHUZESTAN Power System Voltage Stability Studies

Based on the component approach, three kinds of dynamic load models, including a single –motor model, a two-motor model and composite load model have been developed for the stability studies of Khuzestan power system. The study results are presented in this paper. Voltage instability is a dynamic phenomenon and therefore requires dynamic representation of the power system components. Industrial loads contain a large fraction of induction machines. Several models of different complexity are available for the description investigations. This study evaluates the dynamic performances of several dynamic load models in combination with the dynamics of a load changing transformer. Case study is steel industrial substation in Khuzestan power systems.

Authors:

• M. Sedighizadeh
• A. Rezazadeh

Keywords:

• Dynamic load
• modeling
• Voltage Stability.

References:

[1] M.h Nehrir, P.S. Dolan, "Development and of physically -Based
computer model for predicting winter electric heating loads ", IEEE
Trans.on, power systems, Vol.10, No.1, PP.266-272, February 1995.
[2] L.Hajagos , Behnam , Danai , " Laboratory measurement and models
their effects on voltages studies" , IEEE Trans.on power system . Vol 13
, No.2 , PP.584-592 , May 1998
[3] W.S.Kao , "Dynamic Load modeling in tiapower system stability studies
" IEEE Trans on Power systems , Vol.10 , No.2 PP.907-913 , May 1995.
[4] W.S.Kao, "Comparison Simulated power system dynamics applying
various load with actual recorded data", IEEE Trans .On power systems ,
Vol.9 , No.1 PP.284-254 , February.
[5] General Electric Co. "Determining load characteristics for transient
perfomance "Vol 1-4, ERPI Report E1-850, 1981.
[6] C.Concordia and S.Ihara "Load Representation in power system stability
studies "IEEE Trans .on Power app. Syst. Vol. PAS-101 , PP.969-977
April 1982
[7] D.C .franklin, A.Morelate, "Improving dynamic Aggregation of induction
motor models ", IEEE Trans .on power systems, Vol.9 No.4 PP.1934-
1940, November 1994.
[8] S.Sriharan, L.H. Tan, H.M. Ting. "Reduced Transient model of a group
of induction motors ", IEEE Trans .on power system. Vol.8, No.4
PP769-777, December 1993.
[9] A.M.Stankovic, B.C Lesicutre "A Probabilistic approach to aggregate
Induction machine modeling "IEEE trans .on power system .Vol, 11,
No.4 pp.1383-1989, November 1996.
[10] M.M Abel hakim and G.J. Berg, "Dynamic single -unit representation of
induction motors group ", IEEE Trans.on Vol.PAS-95, No.1, Jan/Feb
1976, PP, 155-166.
[11] G.J.Rogers , J.Di Manna and R.T.H Alden " , Aggregate Induction
Motor model for Industrial plants " , IEEE Trans .Vol .PAS -103 ,
No.11 , April 1984 , PP.683-690.
[12] "users guide and reference manual " COGNICASE-CYME CO. ,Feb
2000.