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The six-bus system shown in Figure 1 will be simulated using MATLAB. Transmission line data and bus data are given in TablesTransmission Line Parameters (p.u.) half of total line charging line from busto ubus resistance reactance 0.1 0.05 0.08 0.052 of 3 5. Assume that load forecast analysis predicts an increase in the power demanded in the next five years, in order to m

The six-bus system shown in Figure 1 will be simulated using MATLAB. Transmission line data and bus data are given in Tables 1 and 2 respectively. The transmission line data are calculated on 100 MVA base and 230 (line-to-line) kV base for generator. Tasks: 1. Determine the network admittance matrix Y 2. Find the load flow solution using Gauss-Seidel/Newton Raphson method until first iteration by manual calculation. Use Maltab software to solve power flow problem using Gauss-Seidel method. Find the steady-state values of 3. The voltage (magnitude and phase angle) at each bus for the specified load condition in pu and in kV The current (magnitude and phase angle) associated to each bus Generation and load at each bus in MW and MVar. Find the voltage drop on the transmission line (1-5) Find the active and reactive power losses in the transmission line (1-5) The total MW and Mvar losses in the system a. b. c. d. e. f. 4. In power system networks, it is desired to keep bus voltages within 5% from nominal value (1 p.u). Usually, voltage-controlled buses will tend to have higher voltages than slack bus while load buses voltage will be less than slack bus. Do your results agree with the desired voltage requirements?
Transmission Line Parameters (p.u.) half of total line charging line from busto ubus resistance reactance 0.1 0.05 0.08 0.05 0.05 0.1 0.07 0.12 0.02 0.2 0.1 suscepta ance 0.2 0.2 0.3 0.25 0.1 0.3 0.2 0.26 0.1 0.4 0.3 0.02 0.02 0.03 0.03 0.01 0.02 0.025 0.025 0.01 0.04 0.03 4 2 6 3 3 5 6 Table 1: Six-bus system line parameters in p. u Bus Data bus number bus data remarks slack bus VF 1.0 р.u. .9F 0 degrees P,-100 MW . VF 1.05 р.u." Omin-o, Qma-500 Mva voltage controlled bus P 6 MW, V 1.05 p.l. votage controlled bus 11 0, Qi ax=500 Mvar P60 MW Ps= 60 MW, QF 50 Mvar P 70 MW,Q6 40 Mvar load bus load bus load bus 40 Mva Table 2: Bus data
2 of 3 5. Assume that load forecast analysis predicts an increase in the power demanded in the next five years, in order to meet these demands a new generator rated 420 MW is installed at bus 3 to bring the total bus generation to 480 MW. Modify your program to calculate power flow in the future. Do all bus voltages fall within the allowable limits? One way to regulate bus voltages is to install shunt capacitor banks. Place 20 Mvar shunt capacitor bank on the "needed" bus to regulate its voltage and study its effect. 6. Bonus: If line 3-6 is dropped due to disturbance, analyze its impact on the system (i.e. bus voltages and transmission line loading). If all transmission lines have a maximum MVA rating of 60 MVA, list all transmission lines that violate its operating limit. If any bus voltage is not within the desired limits, how can you correct this'? Ps.V, Ps.Q 6 B.4 P. Q Figure 1: Six-bus system
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Answer #1

For forming the Admittance Matrix of given Power System network as:

So now, the Admittance Matrix can be written as :

NOTE: As you haven't mentioned any specific question among all for which you want the answer, so following the HOMEWORKLIB RULES, I am answering only 1st question.

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