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STEPSS

Kundur Two-Area System

The Kundur two-area system is the standard benchmark for inter-area oscillation studies: two symmetric areas connected by a weak tie, each with two 900 MVA synchronous generators (11 buses, 4 machines, 60 Hz). The RAMSES implementation uses the Kundur-book machine models with exc_kundur AVR/PSS and thermal governors, and ships two dynamic data variants, with and without power system stabilizers, so the damping of the inter-area mode can be compared directly.

Repository: SPS-L/stepss-Kundur-Two-Area-System

Quick Start

Section titled “Quick Start”
import stepss


case = stepss.cfg()
case.addData('lf.dat')            # power-flow data
case.addData('dyn.dat')           # dynamic data (use dyn_noPSS.dat for the no-PSS variant)
case.addData('solveroptions.dat') # solver settings
case.addDst('disturb.dst')        # +0.5 pu load step on L9 at t = 1 s, 60 s horizon
case.addObs('obs.dat')            # observables to record


sim = stepss.sim()
sim.execSim(case)

Running the same disturbance with dyn.dat and dyn_noPSS.dat (PSS gain set to zero) demonstrates the poorly damped inter-area oscillation and its stabilization by the PSS.

Download

Section titled “Download”

The test system files are available in the stepss-Kundur-Two-Area-System repository.

Citation

Section titled “Citation”

If you use this test system in your research, please cite the original source of the system data:

P. Kundur, Power System Stability and Control, McGraw-Hill, 1994 (two-area system, Example 12.6).

See Also

Section titled “See Also”