From 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 Mon Sep 17 00:00:00 2001 From: prashantsinalkar Date: Tue, 10 Oct 2017 12:27:19 +0530 Subject: initial commit / add all books --- 3784/CH4/EX4.10/Ex4_10.sce | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 3784/CH4/EX4.10/Ex4_10.sce (limited to '3784/CH4/EX4.10') diff --git a/3784/CH4/EX4.10/Ex4_10.sce b/3784/CH4/EX4.10/Ex4_10.sce new file mode 100644 index 000000000..c4631e041 --- /dev/null +++ b/3784/CH4/EX4.10/Ex4_10.sce @@ -0,0 +1,33 @@ +clc +//Variable Initialisation +V=230//Input Voltage of motor in volts +f=300//Chopper Frequency +Tl=40//Load Torque in N-m +N1=900//Rated Speed of Motor in rpm +Ra=0//Armature resistance in ohm +La=12e-3//Inductance in Henry +k=2//Motor Constant +//Solution +Ia=Tl/k +W=2*%pi*N1/60 +Eb=k*W +d=(Eb+(Ia*Ra))/V +t1=1/f +ton=d*t1 +toff=(1-d)*t1 +Z1=(V-Eb)/La +Z2=-Eb/La +A=Z1*ton //A=Imax-Imin +B=2*Ia //B=Imax+Imin +Imax=(A+B)/2 +Imin=(B-A)/2 + +t=poly(0,'t'); +x=Imin+Z1*t +y=Imax+Z2*t + +disp (Imax ,"Maximum Armature Current in Amp is") +disp (Imin ,"Minimum Armature Current in Amp is") +disp (A ,"Armature Current Excursion in Amp is") +disp (x ,"Armature Current During Ton in Amp is") +disp (y ,"Armature Current During Toff in Amp is") -- cgit