Code covered by the BSD License  

Highlights from
Admittance Bus (Y-Bus) Formation

1.0
1.0 | 1 rating Rate this file 67 Downloads (last 30 days) File Size: 3.73 KB File ID: #19512 Version: 1.2

Admittance Bus (Y-Bus) Formation

by

PRAVI (view profile)

 

09 Apr 2008 (Updated )

This program can be used for admittance bus formation for load flow analysis.

| Watch this File

File Information
Description

This program can be used for admittance bus formation for load flow analysis.

MATLAB release MATLAB 7.6 (R2008a)
Tags for This File   Please login to tag files.
Please login to add a comment or rating.
Comments and Ratings (7)
16 Jan 2014 drakshayani ks

no comment

Comment only
16 Feb 2013 Valeriu

hello,
your algorithm needs to consider at diagonal elements also the shunt elements susceptances to be complete. Form the bus data!
am i right?

Comment only
12 Dec 2012 umakanth ramineedi

i need explonation for each step

Comment only
19 Sep 2009 bibha boro

thanx it helped me a lot

Comment only
02 Apr 2009 Duane Hanselman

Of use to the author only. Here is what the file ybusppg.m contains:
num = 14;
fb = linedata(:,1); % From bus number...
tb = linedata(:,2); % To bus number...
r = linedata(:,3); % Resistance, R...
x = linedata(:,4); % Reactance, X...
b = linedata(:,5); % Ground Admittance, B/2...
a = linedata(:,6); % Tap setting value..
z = r + i*x; % Z matrix...
y = 1./z; % To get inverse of each element...
b = i*b; % Make B imaginary...

nbus = max(max(fb),max(tb)); % no. of buses...
nbranch = length(fb); % no. of branches...
Y = zeros(nbus,nbus); % Initialise YBus...
% Formation of the Off Diagonal Elements...
for k=1:nbranch
Y(fb(k),tb(k)) = Y(fb(k),tb(k))-y(k)/a(k);
Y(tb(k),fb(k)) = Y(fb(k),tb(k));
end
% Formation of Diagonal Elements....
for m =1:nbus
for n =1:nbranch
if fb(n) == m
Y(m,m) = Y(m,m) + y(n)/(a(n)^2) + b(n);
elseif tb(n) == m
Y(m,m) = Y(m,m) + y(n) + b(n);
end
end
end
Y % Bus Admittance Matrix..

26 Jul 2008 jehan hussian

please send to me asolved example about ybas formation

Comment only
27 Apr 2008 norhan2000 king

iam interested in matlap program

Comment only
Updates
21 Nov 2008 1.1

Updated for double lines

02 Apr 2009 1.2

Added linedatas..

Contact us