#Power world simulator examples software
The software can be downloaded from the official website of power world corporation.įor a basic introduction to the PVQV tool add-on for analyzing impact for Real and reactive power on voltage sensitivity of a system, you may visit the PowerWorld website. Power world simulator is an interactive power system simulation software and it can be used to analyze system behaviour ranging from several minutes to several days. While Use of ETAP for study of system voltage stability is also evident a power system modelled in ETAP, yet this tutorial uses Power World Simulator due to it’s simplicity and ease of use. Matlab/Simulink, ETAP etc) can be used for the study of voltage stability in a power system using Q-V curves. Use of Power World Simulator for Voltage Stability Analysis To maintain stability expect voltage (V) to increase as VARs (Q) are increased. And negative sensitivity indicates an unstable system.
While small value positive sensitivity indicates more stable system. Positive sensitivity indicates a stable system. The V- Q sensitivity of a bus is the slope of its QV curve at the given operating point. If the QV curve does not cross the x-axis, this means the system cannot solve this case. Any higher and voltage collapse would occur. This point represents the maximum increase in the load MVAR at this bus.
#Power world simulator examples generator
At some point, the MVAR value of the generator will stop decreasing and reach the “bottom” of the curve. The voltage set- point of this generator is then varied and its VAR output is allowed to be ANY value needed to meet this voltage set- point. In order to create a QV curve, a fictitious generator is placed at the bus which is being analyzed. A system is in a stable mode with respect to voltage if V – Q sensitivity is positive for every bus, and voltage unstable if V – Q sensitivity is negative for at least one bus. QV relationship shows the sensitivity and variation of bus voltages with respect to reactive power injections or absorptions.
Voltage stability studies the effect of variation in reactive power on the voltage of the system. Voltage Stability Analysis using Q-V curves:
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