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author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
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committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /3731/CH5/EX5.3/Ex5_3.sce | |
parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
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diff --git a/3731/CH5/EX5.3/Ex5_3.sce b/3731/CH5/EX5.3/Ex5_3.sce new file mode 100644 index 000000000..79a209292 --- /dev/null +++ b/3731/CH5/EX5.3/Ex5_3.sce @@ -0,0 +1,22 @@ +//Chapter 5:Dc Motor Drives +//Example 3 +clc; + +//Variable Initialization + +//Motor ratings +V1=220 //rated voltage in V +Ia1=200 //rated current in A +Ra=0.06 //armature resistance in ohms +Rb=0.04 //internal resistance of the variable source in ohms +N1=800 //speed in rpm +N2=600 //speed when motor is operatingin regenerative braking in rpm + +//Solution +Ia2=0.8*Ia1 //motor is opereting in regenerative braking at 80% of Ia1 +E1=V1-Ia1*Ra //back emf at rated operation +E2=(N2/N1)*E1 //back emf at the given speed N2 +V2=E2-Ia2*(Ra+Rb) //internal voltage of thevariable source + +//Results +mprintf("\n Internal voltage of the variable source:%.1f V",V2) |