diff options
Diffstat (limited to '3760/CH4/EX4.58/Ex4_58.sce')
| -rw-r--r-- | 3760/CH4/EX4.58/Ex4_58.sce | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/3760/CH4/EX4.58/Ex4_58.sce b/3760/CH4/EX4.58/Ex4_58.sce new file mode 100644 index 000000000..46d572954 --- /dev/null +++ b/3760/CH4/EX4.58/Ex4_58.sce @@ -0,0 +1,14 @@ +clc;
+s=4; // speed range
+ia=60; // armature current at speed n
+disp('Field flux control');
+// For constant power load Ea*Ia is constant therefore ia is conatant at 4*n
+printf('The armature current at required speed is %f A\n',ia);
+// For constant torque load, speed is 4 times of initial speed therefore flux changes by 1/4 times and hence to maintain torque constant armature current should be four times
+printf('The armature current at required speed is %f A\n',4*ia);
+disp('Armature voltage control');
+// For constant power load Ea*Ia is constant therefore at 4 times speed armature voltage is 4 times and the armature current gets reduced by 1/4 times
+printf('The armature current at required speed is %f A\n',ia/4);
+// For constant power load Ea*Ia is constant therefore at 4 times speed ,flux is constant therefore
+// armature current is constant
+printf('The armature current at required speed is %f A\n',ia);
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