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GB Network

The GB Network is a 50 Hz reduced-order representation of the Great Britain transmission grid with 87 buses and 37 synchronous machines (thermal and CCGT units with AVR/PSS and governor models), shunt compensation, and HVDC interconnections modelled as two-port converter injectors. It is used for dynamic simulation and wide-area monitoring/control studies; a one-line diagram is included in the repository.

Repository: SPS-L/stepss-GB-Network

One-line diagram of the GB network with HVDC-LCC links
import stepss
case = stepss.cfg()
case.addData('GBdyn.dat') # dynamic data: machines, exciters/PSS, governors, loads
case.addData('GBhvdc.txt') # HVDC interconnection two-port models
case.addData('GBvoltrat.dat') # power-flow solution
case.addData('settings.dat') # solver settings
case.addDst('disturb.dst') # 180 s run with commented disturbance templates
case.addObs('obs.dat') # observables to record
sim = stepss.sim()
sim.execSim(case)

The disturbance file contains ready-made (commented) templates for line and machine trips, bus faults, and HVDC parameter changes; uncomment and adapt them as needed. Alternatively, run the RAMSES executable directly with the included cmd.txt.


The test system files are available in the stepss-GB-Network repository.