Two area three unit thermal power system

i did not get desierd output. there is all data is given in ppt but i did not get perfect output frequncy waveform. if you can help me the its good for me thank you

Answer 1

[Sulaymon Eshkabilov]

In your m-file, one of the variables is not initialized correctly, see:

...
b1=0.4249;
b2=0.                     % ERR
4249;
tg1=0.08;
...

should be:

b1=0.4249;
b2=0.4249;                % Corrected  
tg1=0.08;
...

[suketu vaidya]

still its not working i thing the problem is in step function becouse my graph is totally revarse. of freq graph.