scholarly journals Influence of the Load Models in the Dynamic Voltage Stability of an Electric Power System

2004 ◽  
Vol 1 (02) ◽  
pp. 364-370
Author(s):  
R.M. Monteiro Pereira ◽  
C.M. Machado Ferreira ◽  
J.A. Díaz Pinto ◽  
F.P. Maciel Barbosa
Keyword(s):  
Power System ◽  
Electric Power ◽  
Voltage Stability ◽  
Electric Power System ◽  
Load Models ◽  
Dynamic Voltage ◽  
Dynamic Voltage Stability

scholarly journals Dynamic Voltage Stability Comparison of Thermal and Wind Power Generation with Different Static and Dynamic Load Models

2018 ◽  
Vol 8 (3) ◽  
pp. 1401
Author(s):  
Lina F. Acevedo ◽  
Gilbert Bothia-Vargas ◽  
John Edwin Candelo
Keyword(s):  
Power System ◽  
Dynamic Load ◽  
Voltage Stability ◽  
Moment Of Inertia ◽  
Sensitivity Analyses ◽  
Induction Generator ◽  
Load Models ◽  
Dynamic Voltage ◽  
Dynamic Voltage Stability ◽  
The Moment

This paper presents a static and dynamic voltage stability analysis of a power network with thermal and wind generation considering static and dynamic load models. The thermal plant was modeled as a synchronous machine and the wind farm as a variable speed induction generator based on a doubly-fed induction generator. The load considered the ZIP, exponential recovery, induction motor, and frequency-dependent load models. The bifurcation points were found by continuation power flow and sensitivity analyses. In addition, dynamic voltage stability assessments were performed considering changes in the moment of inertia and the frequency parameters. All simulations were carried out in a 4-bus power system and using the power system analysis toolbox (PSAT) and MATLAB script code. The results show that the thermal generator had difficulties to maintain stability under dynamic load variations and frequency changes, the wind generator had difficulties to maintain voltage for the load with induction motors, and both generators had difficulties when the moment of inertia is increased.

scholarly journals Power system dynamic voltage stability affected by open-loop modal coupling between DFIG-based wind farms and IM loads

2019 ◽  
Vol 2019 (16) ◽  
pp. 2514-2519 ◽  
Author(s):  
Guoyun Su ◽  
Long Xu ◽  
Wenjuan Du ◽  
Chen Chen ◽  
Yining Ji ◽  
...  
Keyword(s):  
Power System ◽  
Voltage Stability ◽  
Wind Farms ◽  
Open Loop ◽  
System Dynamic ◽  
Modal Coupling ◽  
Dynamic Voltage ◽  
Dynamic Voltage Stability
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