Power system In the power system network shown in Figurebelowbus 1 is a slack bus withV = 1.040° per unit and bus 2 is a load bus with S2Mvar. The line impedance on a base of 100 MVA is Z = 0.01 + j0.02 perunit.300 MW + 80(a) Using Gauss-Seidel method, determine V2. Use an initial estimate of1.0+ j0.0 and perform two iterations. i.e.Deternine(a)V2' and (b)Vz?Z12 0.01+ j0.0 2S2 300 MW +j80 Mvar(a) 0.945 - j 0.025 (b) 0.994- j0.0571(a) 0.965 - j 0.0255 (b) 0.914 - j0.0529(a) 0.954 - j 0.052 (b) 0.949 - j0.0517(a) 0.914 - j 0.0152 (b) 0.949 - j0.0517A Moving to another question will save this response.

(a) Given thatV1=1.0∠0°S2=300MW+j80 MvarLine impedance,Z12=0.01+j0.02 p.u.

In the power system network shown in Figurebelowbus 1 is a slack bus with V = 1.020° per unit and bus 2 is a load bus with S2 = 300 MW + 80 Mvar. The line impedance on a base of 100 MVA is Z = 0.01 + j0.02 per unit. (a) Using Gauss-Seidel method, determine V2. Use an initial estimate of V = 1.0+ j0.0 and perform two iterations. i.e.Deternine (a)V,' and (b)Vz? %3D %3D %3D Z12 0.01+ j0.0 2 %3D 2 S2 300 MW +j80 Mvar

In the power system network shown in Figurebelowbus 1 is a slack bus with V = 1.020° per unit and bus 2 is a load bus with S2 = 300 MW + 80 Mvar. The line impedance on a base of 100 MVA is Z = 0.01 + j0.02 per unit. (a) Using Gauss-Seidel method, determine V2. Use an initial estimate of V = 1.0+ j0.0 and perform two iterations. i.e.Deternine (a)V,' and (b)Vz? %3D %3D %3D Z12 0.01+ j0.0 2 %3D 2 S2 300 MW +j80 Mvar

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 6.23MCQ

See similar textbooks

Similar questions

To convert a per-unit impedance from old to new base values, the equation to be used is Zp.u.new=Zp.u.old(VbaseoldVbasenew)2(SbasenewSbaseold)Zp.u.new=Zp.u.old(VbaseoldVbasenew)2(SbasenewSbaseold)Zp.u.new=Zp.u.old(VbaseoldVbasenew)2(SbasenewSbaseold)
Q2. Figure Q2 shows the single-line diagram. The scheduled loads at buses 2 and 3 are as marked on the diagram. Line impedances are marked in per unit on 100 MVA base and the line charging susceptances are neglected. a) Using Gauss-Seidel Method, determine the phasor values of the voltage at load bus 2 and 3 according to second iteration results. b) Find slack bus real and reactive power according to second iteration results. c) Determine line flows and line losses according to second iteration results. d) Construct a power flow according to second iteration results. Slack Bus = 1.04.20° 0.025+j0.045 0.015+j0.035 0.012+j0,03 3 |2 134.8 MW 251.9 MW 42.5 MVAR 108.6 MVAR
A network consisting of a set of generator and load buses is to be modeled with a DC power flow, for the sake of conducting a contingency analysis. The initial flows calculated with the DC power flow give the following information: f°2-4 = - 65.3 MW and fº4-5 = 13.6 MW. The following values of LODF and PTDF factors are given: PTDF54,2-4 = -0.2609, LODF2-4,4-5 = -0.6087. Calculate the contingency flow on line 2-4 due to outage of line 4-5. Select one: O a. -75.5MW O b. None of these O c. -68.85MW O d. -73.58MW O e. 75.5MW O f. -61.75MW
A loss less TiL with characteristic impedance of to is terminated in Zr=3Z0. use crank diagram to sketch the voltage versus distance from the load, (Assume vst = 1 volt). @ Repeat the above How for Zv=Zo/3-
For the system shown in figure, voltages V2. V3 and angles 82, 8z are calculated using Newton-Raphson method. shunt line charging admittances are neglected. All the values are given in per unit on 100MVA base. Calculate the complex power flows S12 and S32 in actual units. Z12 = 0.01+ j0.02 Z3 = 0.02 + j0.04 PL Slack bus V=1.0/0° V = 0.96L-1.67° V, = 0.882-5.48° (estimated time to answer this question: 13 minutes)
What is load curve
For the system shown in figure, voltages V2, V3 and angles 82, 83 are calculated using Newton-Raphson method. shunt line charging admittances are neglected. All the values are given in per unit on 100MVA base. Calculate the complex power flows S12 and S32 in actual units. 1) Z12 = 0.01+ j0.02 Z3 = 0.02+ j0.04 PL G QL Slack bus V2 = 0.96L -1.67° V3 = 0.884 - 5.48° Vi=1.0/0° (estimated time to answer this question: 13 minutes)
The one-line diagram of a three-phase power system is as shown in Figure. Impedance are marked in per-unit on a 100-MVA, 400-kV base. The load at bus 2 is S-15.93 MW-j33.4 Mvar, and at bus 3 is S3-77 MW+j14 Mvar. It is required to hold the voltage at bus 3 at...L0 kV. Working in per-unit, determine the voltage at buses 2 and 1. (Please determine the voltage magnitude within the specified limits: 410-450 V. By considering the voltage magnitude value you determined yourself, solve the question.) V₁ j0.5 pu V₂ j0.4 pu $₂ Figure V3
please solve for nodal stress method. (if it is possible to apply supernodes)
following figure shows the one-line diagram of a power system. Bus 1 is selected as a reference bus (slack bus), and bus 2 is load bus. Using the Gauss-Seidel method, determine the value of the voltage at the load bus 2 and perform two iteration. Moreover determine the complex power flow at bus 1 and also active and reactive power in transmission line. The line impedance on a base of 100 MVA. Use an initial estimate of V,º = 1+ j(0) . S1 Z12 = 0.02 + j0.04 2 S2 = 280 MW +j60 Mvar
In the power system network shown in Figurebelowbus 1 is a slack bus with V = 1.020° per unit and bus 2 is a load bus with S2 300 MW + 80 Mvar. The line impedance on a base of 100 MVA is Z = 0.01 + j0.02 per %3D unit. (a) Using Gauss-Seidel method, determine V. Use an initial estimate of = 1.0 + j0.0 and perform two iterations. i.e.Deternine(a)V2 and (b)V½? Z12 = 0.01+ j0.0 2 2 S2 300 MW+80 Mvar (a) 0.954 - j0.052 (b) 0.949 - j0.0517 (a) 0.914 - j0.0152 (b) 0.949 - j0.0517 (a) 0.945 - j0.025 (b) 0.994- j0.0571 (a) 0.965 - j0.0255 (b) 0.914 - j0.0529
Two alternators rated 400 MW and 600 MW are operating in parallel. The droopcharacteristics of their governors are 3% and 4% respectively from no loadto full load. Assuming that the alternators are operating at 50 Hz at noload, how would a load of 1000 MW be shared between them? What will be thesystem frequency at this load?