1. A salient pole machine supplies a load of 1.2 p.u. at unity power factor to an infinite bus whose...

Question

1. A salient pole machine supplies a load of 1.2 p.u. at unity power factor to an infinite bus whose voltage is maintained at 1.05 p.u. The machine excitation voltage is computed to be 1.4 p.u. when the power angle is 25°. Evaluate the direct-axis and quadrature-axis synchronous reactances.

2. Solve Problem 3.18 using MATLAB^TM.

Problem 3.18

A salient pole machine supplies a load of 1.2 p.u. at unity power factor to an infinite bus whose voltage is maintained at 1.05 p.u. The machine excitation voltage is computed to be 1.4 p.u. when the power angle is 25°. Evaluate the direct-axis and quadrature-axis synchronous reactances.

Robert · Accepted Answer

Solution 
The active and reactive power equations for the salient-pole machine 
are given by Eq. (3.61) and (3.62). Using the given data we obtain 
2= (1 .4) (1.05) . 250 + (1 .
05) 2 (� _  � ) . 500 1 . X sm 2 X X sm d q d 
0= (1 .4�1 .05) cos250 _ (1 .

1. A salient pole machine supplies a load of 1.2 p.u. at unity power factor to an infinite bus whose voltage is maintained at 1.05 p.u. The machine excitation voltage is computed to be 1.4 p.u. when...

Solution

Answer To This Question Is Available To Download

Related Questions & Answers

Submit New Assignment