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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /3472/CH17/EX17.21/Example17_21.sce | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
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initial commit / add all books
Diffstat (limited to '3472/CH17/EX17.21/Example17_21.sce')
| -rw-r--r-- | 3472/CH17/EX17.21/Example17_21.sce | 34 |
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diff --git a/3472/CH17/EX17.21/Example17_21.sce b/3472/CH17/EX17.21/Example17_21.sce new file mode 100644 index 000000000..a43e66d47 --- /dev/null +++ b/3472/CH17/EX17.21/Example17_21.sce @@ -0,0 +1,34 @@ +// A Texbook on POWER SYSTEM ENGINEERING
+// A.Chakrabarti, M.L.Soni, P.V.Gupta, U.S.Bhatnagar
+// DHANPAT RAI & Co.
+// SECOND EDITION
+
+// PART II : TRANSMISSION AND DISTRIBUTION
+// CHAPTER 10: POWER SYSTEM STABILITY
+
+// EXAMPLE : 10.21 :
+// Page number 305-306
+clear ; clc ; close ; // Clear the work space and console
+
+// Given data
+f = 50.0 // Frequency(Hz)
+P = 4.0 // Number of poles
+G = 20.0 // Rating of turbo-generator(MVA)
+V = 13.2 // Voltage(kV)
+H = 9.0 // Inertia constant(kW-sec/kVA)
+P_s = 20.0 // Input power less rotational loss(MW)
+P_e = 15.0 // Output power(MW)
+
+// Calculations
+KE = G*H // Kinetic energy stored(MJ)
+M = G*H/(180*f) // Angular momentum(MJ-sec/elect.degree)
+P_a = P_s-P_e // Accelerating power(MW)
+alpha = P_a/M // Acceleration(elect.degree/sec^2)
+alpha_deg = alpha/2.0 // Acceleration(degree/sec^2)
+alpha_rpm = 60.0*alpha_deg/360 // Acceleration(rpm/sec)
+
+// Results
+disp("PART II - EXAMPLE : 10.21 : SOLUTION :-")
+printf("\nCase(a): Kinetic energy stored by rotor at synchronous speed, GH = %.f MJ", KE)
+printf("\nCase(b): Acceleration, α = %.f degree/sec^2", alpha_deg)
+printf("\n Acceleration, α = %.2f rpm/sec", alpha_rpm)
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