Performance evaluation of dynamic load models for voltage stability analysis

In this paper the first order aggregate dynamic load models for the representation of the induction motor loads have been evaluated from the voltage stability analysis point of view. Two models, the First order Variable Admittance (FVA) model and the Aggregate Nonlinear Recovery (ANR) model have been considered along with the system dynamic equations to obtain the dynamic voltage stability limit of the system. The adequacy of these two models is verified with a third order Detailed Induction Motor (DIM) model for the representation of induction motor loads. The results are presented for all the models for three different test systems. It is shown that the dynamic load models used for the representation of induction motor loads have a tremendous effect on the voltage stability of the system.

[1]  Mariesa L. Crow.  Dynamics of voltage instability and collapse , 1994 .

[2]  Joe H. Chow,et al.  Investigation of the effects of load models and generator voltage regulators on voltage stability , 1994 .

[3]  D. Hill,et al.  Fast calculation of a voltage stability index , 1992 .

[4]  H. Happ.  Power system control and stability , 1979, Proceedings of the IEEE.

[5]  C. W. Taylor,et al.  Load representation for dynamic performance analysis , 1993 .

[6]  Y. Tamura,et al.  Relationship Between Voltage Instability and Multiple Load FLow Solutions in Electric Power Systems , 1983, IEEE Transactions on Power Apparatus and Systems.

[7]  C. W. Taylor,et al.  Standard load models for power flow and dynamic performance simulation , 1995 .

[8]  Peter W. Sauer,et al.  Dynamic aspects of voltage/power characteristics (multimachine power systems) , 1992 .

[9]  D. Hill,et al.  Modelling and identification of nonlinear dynamic loads in power systems , 1994 .

[10]  Robert J. Thomas,et al.  A posturing strategy against voltage instabilities in electric power systems , 1988 .

[11]  M. Pai,et al.  Power system steady-state stability and the load-flow Jacobian , 1990 .

[12]  Wilsun Xu,et al.  Voltage stability analysis using generic dynamic load models , 1994 .

[13]  David J. Hill,et al.  Nonlinear dynamic load models with recovery for voltage stability studies , 1993 .

[14]  Joe H. Chow,et al.  Dynamic voltage stability analysis of a single machine constant power load system , 1990, 29th IEEE Conference on Decision and Control.

[15]  David J. Hill,et al.  Stability analysis of power system loads with recovery dynamics , 1994 .

[16]  Thomas J. Overbye,et al.  Effects of load modelling on analysis of power system voltage stability , 1994 .