i3essr.m

% MATLAB script file to load synchronous machine 
%  parameters given in  Table 1 of  First Benchmark Model 
%  for Computer  Simulation of Subsynchronous Resonance
%  IEEE Trans on PAS, Vol. 1, PAS -96, Sept/Oct 1977,
%  pp. 1565-1572.
%  Copyright 1977 IEEE


Perunit = 1 % parameters given in per unit of machine base
Frated = 60;
Poles = 2;
Pfrated= 0.9;
Vrated =18e3; 
Prated=892e6;
rs = 0.00;
xd = 1.79;
xq = 1.71;
xls = 0.13;
xpd = 0.169;
xpq = 0.228;
xppd = 0.135;
xppq = 0.200;
Tpdo = 4.3;
Tpqo = 0.85;
Tppdo = 0.032;
Tppqo = 0.05;
Domega = 0;%Nonzero to account for damper winding not reprsented
H = 2.89;
KA = 50;
% KA = 200; high gain value for case 5
TA =.06;
VRmax = 1;
VRmin = -1;
TE = 0.052;
KE = -0.0465;
TF = 1.0;
KF = 0.0832;
AEx = 0.0012; 
BEx = 1.264;