matlab for shrt circuit analysis
TRANSCRIPT
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7/25/2019 Matlab for Shrt Circuit Analysis
1/6
1/25/2016 M ATLAB Pr og ram for Shor t Cir cuit Analysi s | EE1404 Power System Si mulati on Labor ator y - Sour ce Code Soluti ons
http://www.sourcecodesolutions.in/2011/03/short-circuit-analysis-matlab-program.html 1/6
Jebastin 5 yearsago
AIM:To become familiar with modelling and analysis of power systems under faulted condition and
to compute the fault level, post-fault voltages and currents for different types of faults, both
symmetric and unsymmetric.
SOFTWARE REQUIRED:
MATLAB Program for Short Circuit Analysis | EE1404 Power System
Simulation Laboratory
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7/25/2019 Matlab for Shrt Circuit Analysis
2/6
1/25/2016 M ATLAB Pr og ram for Shor t Cir cuit Analysi s | EE1404 Power System Si mulati on Labor ator y - Sour ce Code Soluti ons
http://www.sourcecodesolutions.in/2011/03/short-circuit-analysis-matlab-program.html 2/6
MATLAB 5.3
THEORY:
https://lh4.googleusercontent.com/-B5e0oVAIEjc/TXCgSB8HOsI/AAAAAAAAA7I/PzzfyZy71so/s1600/MATLAB-Program-for-short-circuit-analysis-EE1404%25E2%2580%2593Power-System-Simulation-Laboratory-Formula.PNG -
7/25/2019 Matlab for Shrt Circuit Analysis
3/6
1/25/2016 M ATLAB Pr og ram for Shor t Cir cuit Analysi s | EE1404 Power System Si mulati on Labor ator y - Sour ce Code Soluti ons
http://www.sourcecodesolutions.in/2011/03/short-circuit-analysis-matlab-program.html 3/6
PROCEDURE:1. Enter the command window of the MATLAB.
2. Create a new M file by selecting File - New M File
3. Type and save the program.4. Execute the program by either pressing Tools Run.
View the results.
EXERCISE:
https://lh4.googleusercontent.com/-B5e0oVAIEjc/TXCgSB8HOsI/AAAAAAAAA7I/PzzfyZy71so/s1600/MATLAB-Program-for-short-circuit-analysis-EE1404%25E2%2580%2593Power-System-Simulation-Laboratory-Formula.PNG -
7/25/2019 Matlab for Shrt Circuit Analysis
4/6
1/25/2016 M ATLAB Pr og ram for Shor t Cir cuit Analysi s | EE1404 Power System Si mulati on Labor ator y - Sour ce Code Soluti ons
http://www.sourcecodesolutions.in/2011/03/short-circuit-analysis-matlab-program.html 4/6
The one line diagram of a simple power system is shown in figure. The neutral of each
generator is grounded through a current limiting reactor of 0.25/3 per unit on a 100MVA base.
The system data expressed in per unit on a common 100 MVA base is tabulated below. The
generators are running on no load at their rated voltage and rated frequency with their emfs in
phase.
Determine the fault current for the following faults.(a) A balanced three phase fault at bus 3 through a fault impedance Zf = j0.1 per unit.
(b) A single l ine to ground fault at bus3 through a fault impedance Zf = j0.1 per unit.
(c) A line to line fault at bus3 through a fault impedance Zf = j0.1 per unit.
(d) A double line to ground fault at bus3 through a fault impedance Zf = j0.1 per unit.
https://lh4.googleusercontent.com/-CS_r987BEN0/TXChtItffYI/AAAAAAAAA7M/5o1qYZ0sGtU/s1600/MATLAB-Program-for-short-circuit-analysis-EE1404%25E2%2580%2593Power-System-Simulation-Laboratory-Excercise.PNG -
7/25/2019 Matlab for Shrt Circuit Analysis
5/6
1/25/2016 M ATLAB Pr og ram for Shor t Cir cuit Analysi s | EE1404 Power System Si mulati on Labor ator y - Sour ce Code Soluti ons
http://www.sourcecodesolutions.in/2011/03/short-circuit-analysis-matlab-program.html 5/6
Verify the result using MATLAB program.
PROGRAM:
zdata1 = [0 1 0 0.25
0 2 0 0.25
1 2 0 0.125
1 3 0 0.15
2 3 0 0.25];
zdata0 = [0 1 0 0.40
0 2 0 0.10
1 2 0 0.30
1 3 0 0.35
2 3 0 0.7125];
zdata2 = zdata1;
Zbus1 = zbuild(zdata1)
Zbus0 = zbuild(zdata0)
Zbus2 = Zbus1;
symfault(zdata1,Zbus1)
lgfault(zdata0, Zbus0, zdata1, Zbus1, zdata2, Zbus2)
https://lh5.googleusercontent.com/-1v3-Kpmk7o8/TXChxg9OAZI/AAAAAAAAA7Q/N7jwE1zwSt8/s1600/MATLAB-Program-for-short-circuit-analysis-EE1404%25E2%2580%2593Power-System-Simulation-Laboratory-Table.PNG -
7/25/2019 Matlab for Shrt Circuit Analysis
6/6
1/25/2016 M ATLAB Pr og ram for Shor t Cir cuit Analysi s | EE1404 Power System Si mulati on Labor ator y - Sour ce Code Soluti ons
http://www.sourcecodesolutions.in/2011/03/short-circuit-analysis-matlab-program.html 6/6
RESULT:
Finally, became familiar with modelling and analysis of power systems under faulted condition andto compute the fault level, post-fault voltages and currents for different types of faults, both
symmetric and unsymmetric.
llfault(zdata1, Zbus1, zdata2, Zbus2)
dlgfault(zdata0, Zbus0, zdata1, Zbus1, zdata2, Zbus2)
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