Please solve this problems to understand the methods Problem 1:For a 4-bus network, the upper and lower matrices are shown below.-j16.75j11.75j2.5j2.5L =U =Using L&U, find ZTH,3-4L* U * 23***busZTH,3-4UZ = X; Zbus*bus=0-j11.00746j4.25373j6.75373-0.70149100; L * X =-[Z13 Z14]Z23-Z24Z33 Z34Z43 - Z44]=; X =0000-j3.783050j2.98305 -j1.43082]-0.14925 -0.14925-0.38644 -0.613561-0.7885310P.S. Use 5 decimal digits precision.== (Z33 Z34) (Z43 - Z44) = j0. 295600j0. 26434-j0. 1478-j0. 023551-j0.03357j0.14780[-j0. 14780]

In the below equation, the matrix of L and U is given. .....(1)2. Let…

For a 4-bus network, the upper and lower matrices are shown below. [-j16.75 0 0 j11.75 0 0 j2.5 -j3.78305 0 j2.5 j2.98305 -j1.43082] L = L*U* Z³ = 3-4 bus Using L&U, find ZTH,3-4 ZTH,3-4 = 0 0 B. 3-4 UZ = X; Z3-4 bus - = 0 -j11.00746 j4.25373 j6.75373 -0.70149 1 - 0 ; L * X = 0 0 0 [Z13 Z14 Z23-Z24 Z33 Z34 [Z43-Z44] - -0.14925 -0.14925 -0.38644 -0.61356 1 -0.78853 1 0 P.S. Use 5 decimal digits precision. X = 0 0 j0.26434 -j0. 1478 (Z33 Z34) (Z43 - Z44) = j0.2956 -j0.023551 -j0.03357 j0.14780 -j0. 14780]

For a 4-bus network, the upper and lower matrices are shown below. [-j16.75 0 0 j11.75 0 0 j2.5 -j3.78305 0 j2.5 j2.98305 -j1.43082] L = LU Z³ = 3-4 bus Using L&U, find ZTH,3-4 ZTH,3-4 = 0 0 B. 3-4 UZ = X; Z3-4 bus - = 0 -j11.00746 j4.25373 j6.75373 -0.70149 1 - 0 ; L * X = 0 0 0 [Z13 Z14 Z23-Z24 Z33 Z34 [Z43-Z44] - -0.14925 -0.14925 -0.38644 -0.61356 1 -0.78853 1 0 P.S. Use 5 decimal digits precision. X = 0 0 j0.26434 -j0. 1478 (Z33 Z34) (Z43 - Z44) = j0.2956 -j0.023551 -j0.03357 j0.14780 -j0. 14780]

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 6.12MCQ

See similar textbooks

Similar questions

7. In the circuit below write the loop equations and set up (not solve) the matrix equation for the load current. Wiso 150 75 28 100
Example 1: Using gaussian elemination , solve the nodal equation bellow to find the bus voltages. At each step of elimination find the equivalent circuit of the reduced matrix. 4 -j16.75 j11.75 j2.50 j2.50 jl1.75 --j19.25 j2.50 j5.00 1.00/ – 90° 0.68/ – 135° j2.50 j2.50 0.00 -j5.80 4. j2.50 j5.00 0.00 ーj8.30
In a DC optimal power flow problem of 3 bus network. The flow on lines was found to as follow: f12=100 M, MW, f13=150 MW, and f23 =120MW. The lines limits are 140 MW each. and the system base MVA =10OMVA. What additional constraint to be added on the solution of the DCOPF Select one: O a. None of these O b. 100 (0, - 02)/x12= 150 Oc. 100 (0, - 03)/x13= 140 O d. 100 (0, - 03)/x13= 160 O e. 100 (0, - 03)/x13= 130 O f. 100 (0, - 03)/x13= 150
With the system shown in the figure, use 100MVA as system base, and 230 kV as base voltage along the transmission line. For the same system in the figure, build the Y-bus matrix without the Load. 1. What is the element Y11? Provide the susceptance value 2. What is the element Y22? Provide the susceptance value
How many rows and columns becomes zero in a Jacobian matrix due to SLACK BUS ? Why or how can you justify it ?
1- Some HV - TL use Double Circuit .instead of One, why To transmit maximum voltage stability, and enhance the steady state stability. 6 To increase the capacity of HVTL and to enhance power system stability. a- All these answers are wrong. d- To increase the impedance of HVTL and to enhance power system stability. 2- Sometimes we use Red Balls with HV.TL in specific locations ? why and where a- To prevent HV.TL from lightning, it located at earth wire over roads and rivers. To give an alarm for the planes, it located at earth wire over roads and rivers. To reduce static transient voltage, it located at earth wire over roads and rivers. d- To reduce static transient voltage, it located at earth wire everywhere. 3- How you can read this impulse voltage : 1.2/50 us and at which ? Standard Durations wave front : 1.2 tr, Wave tail duration is defined as 50 m.si as in International Standard). C Durations wave front : 1.2 tr ( where tr is the transient time ), Wave tail duration is defined…
Helping tags: Electrical Engineering . . . . WILL UPVOTE, just pls help me answer the question and show complete solutions. Thank you!
Draw the single line diagram and determine the Y bus matrix for the given data. All admittances are given in pu. Bus Line Admittance in PU From To 1 2 -j1.0 3 -j2.5 4 -j5 3 4 -j5 3. -j1.25
load flov Question 4 i. What the different type of buses used in load flow analysis and what are their characteristics? Consider the electrical power system network connector shown in Figure Q4. Y10 GND 4 Y20 Determine the numerical YBUS matrix. GND Figure Q4 Develop the admittance matrix (YBUS) for this network Assuming the GND admittances are removed from the (YBUS matrix) i.e. as they are both negligible and given the admittance of the link Y12 is: 3.473-119.696 s
With the system shown in figures, use 100MVA as system base, and 230 kV as base voltage along the transmission line. 1. Build the Y-bus matrix without the Load. What is the element Y12 in susceptance value? 2. If you are to convert the real power load to a shunt conductance, what is the value of the conductance in per unit?
3. The discrete-sme syiem shown in Figure 2 consists of twount-delay elementi and scalar mutiplers. Wite a diftororce equation trat relatos the sutpur ya) and he input ajk]. D D Figure 2.
With the system shown in figures, use 100MVA as system base, and 230 kV as base voltage along the transmission line. 1. Based on the system diagram with buses labelled accordingly what should be the rank of the square Y-bus matrix? 2. Build the Y-bus matrix without the Load. What is the element Y11 in susceptance value? 3. Build the Y-bus matrix without the Load. What is the element Y22 in susceptance value? 4. Build the Y-bus matrix without the Load. What is the element Y12 in susceptance value? 5. If you are to convert the real power load to a shunt conductance, what is the value of the conductance in per unit?