initial commit / add all books

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+//Example 5.6

+clc;clear;close;

+format('v',6);

+f=50;//Hz

+R=2;//Hz/pu MW

+Pr=10000;//MW(Rated Capacity)

+P=Pr/2;//MW(Operating Power)

+delP=2;//%(Load Increase)

+del_f=f*1/100;//Hz(1% change in frequency)

+del_PL=P*1/100;//MW(1% change in load)

+//Rate of change of load with frequency :

+D=del_PL/del_f;//MW/Hz

+D=D/Pr;//p.u. MW/Hz

+//Frequency response characteristic : 

+Beta=D+1/R;//p.u. MW/Hz

+M=delP/100*P;//MW

+M=M/Pr;//p.u. MW

+del_fo=-M/Beta;//Hz

+disp("Frequency drop contribution to increase in load(MW) : ");

+delP_fo=-del_fo*(D*Pr);//MW

+disp(delP_fo);

+disp("Increase in generation to meet the increase load(MW) ");

+delP_gen=-del_fo/R*Pr;//MW

+disp(delP_gen);