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diff --git a/3811/CH3/EX3.3/Ex3_3.sce b/3811/CH3/EX3.3/Ex3_3.sce new file mode 100644 index 000000000..0c135fc53 --- /dev/null +++ b/3811/CH3/EX3.3/Ex3_3.sce @@ -0,0 +1,22 @@ +//Book name: Fundamentals of electrical drives by Mohamad A. El- Sharkawi +//chapter 3 +//example 3.3 +//edition 1 +//publisher and place:Nelson Engineering +clc; +clear; +Vrms=110; //The voltage on the ac side in volts +R=10; //Resistance value of the resistive load in ohm +alpha=60; //triggering angle of the converter in degree +Vm=110*(2)^(1/2); //maximum voltage in volts +disp('Instantaneous power method:') +P=((Vm)^(2)/(8*%pi*R))*(2*(%pi-alpha*(%pi/180))+sind(2*alpha)); +disp(P,'Power dissipated in the load resistance in watt is:') +disp('Harmonic method:') +a1=(Vm/(2*%pi*R))*(cosd(2*alpha)-1); +b1=(Vm/(4*%pi*R))*(sind(2*alpha)+(2*(%pi-alpha*(%pi/180)))); +c1=(a1^(2)+b1^(2))^(1/2); +pie1=atand(a1/b1); +P1=(Vm*c1*cosd(pie1))/2; +disp(P1,'The power computed by harmonic method in watt is:') + |