The example in this directory simulates the use of frequency responsive load
for regulating system frequency. The twist in this model is that frequency
is sensed at the generators and actuation is done via communication network
to the loads. To build the example, run 'make'. Input to the command line is

1) The load flow data in the CDF format.
2) The data rate for the network in packets per second.
3) The control gain (bigger gain -> more responsive load).
4) The number of frequency points at which the loads will be 
   asked to respond. Frequency thresholds are then uniformly
   spaced in [-FreqTol,FreqTol] where FreqTol is the disconnect
   frequency of the generator.
5) The generator to disconnect at the start of the experiment.

Output from the simulation are

1) A data file _freq.data with generator data versus time. The gnuplot
   script plot_genr_freq.gnu can be used to display this data.

See sim.cpp for more details.
