electrical engg .fig.shows a single-line diagram of a power system where the generator is connected to the bus 1 and the load is connected to the bus 2. The line impedance is 0.12 +j 0.23 pu on a 100 MVA a base. Per unit real power and reactive power supplied to the load are 0.50 and 0.30 respectively. Bus 1 is a slack bus. Use Gauss-Seidel method to determine the (i) voltage at bus 2, (ii) slack bus real and reactive powers, (iii) line flows,

electrical engg .fig.shows a single-line diagram of a power system where the generator is connected to the bus 1 and the load is connected to the bus 2. The line impedance is 0.12 +j 0.23 pu on a 100 MVA a base. Per unit real power and reactive power supplied to the load are 0.50 and 0.30 respectively. Bus 1 is a slack bus. Use Gauss-Seidel method to determine the (i) voltage at bus 2, (ii) slack bus real and reactive powers, (iii) line flows,

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter6: Power Flows

Section: Chapter Questions

Problem 6.35P

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The given zero sequence matrix is known. .At bus 1 there is a single generator connected with sequence reactance O of. j2 ohms. At bus 2, there are two motors connected, M1 and M2, each with zero sequence reactance of j2 ohms. j2 ohms zero sequence reactance. Motor M2 at bus 2 is solidly grounded.. For these conditions: a. Determine whether or not the generator at bus 1 is grounded. b. Establish the value of the grounding of motor M1. ZBUS (0) Z11 =j 11.42857 Z12 =j 1.42657 Z22 j1.42857 =
1. FIGURE 52 shows the one-line diagram of a simple three-bus power system with generation at bus I. The voltage at bus l is V1 = 1.0L0° per unit. The scheduled loads on buses 2 and 3 are marked on the diagram. Line impedances are marked in per unit on a 100 MVA base. For the purpose of hand calculations, line resistances and line charging susceptances are neglected a) Using Gauss-Seidel method and initial estimates of Va 0)-1.0+)0 and V o)- ( 1.0 +j0, determine V2 and V3. Perform two iterations (b) If after several iterations the bus voltages converge to V20.90-j0.10 pu 0.95-70.05 pu determine the line flows and line losses and the slack bus real and reactive power. 2 400 MW 320 Mvar Slack 0.0125 0.05 300 MW 270 Mvar FIGURE 52
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