December 2020
Intermediate to advanced
545 pages
15h 57m
English
book
Modern Power System Analysis with MATLAB® Applications by Pearson
by R. Jegatheesan, K. Vijayakumar
Content preview from Modern Power System Analysis with MATLAB® Applications by Pearson
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Modern Power System Analysis with MATLAB Applications
288
They are represented by,
I
bus
()1
=
1
2
0
0
0
0
0
1
p
N
I
fa
−
⎡
⎣
⎢
⎢
⎢
⎢
⎢
⎢
⎢
⎢
⎢
⎢
⎢
⎤
⎦
⎥
⎥
⎥
⎥
⎥
⎥
⎥
⎥
⎥
⎥
⎥
()
and pre-fault voltage =
1
1
1
1
1
1
⎡
⎣
⎢
⎢
⎢
⎢
⎢
⎢
⎢
⎢
⎢
⎢
⎢
⎤
⎦
⎥
⎥
⎥
⎥
⎥
⎥
⎥
⎥
⎥
⎥
⎥
V
f
(6.57)
The positive sequence bus voltages in the faulted system namely,
V
bus
()1
=
1
2
1
1
2
1
1
1
p
N
V
V
V
V
a
a
pa
Na
()
()
()
()
⎡
⎣
⎢
⎢
⎢
⎢
⎢
⎢
⎢
⎢
⎢
⎤
⎦
⎥
⎥
⎥
⎥
⎥
⎥
⎥
⎥
⎥
(6.58)
can be obtained using ‘Superposition Theorem’. Due to two sources, the positive sequence bus
voltages in the faulted system are,
V
bus
()1
=
1
2
1
1
2
1
1
1
p
N
V
V
V
V
a
a
pa
Na
()
()
()
()
⎡
⎣
⎢
⎢
⎢
⎢
⎢
⎢
⎢
⎢
⎢
⎤
⎦
⎥
⎥
⎥
⎥
⎥
⎥
⎥
⎥
⎥
=
ZZ ZZ
ZZ ZZ
Z
pN
pN
p
11
1
12
1
1
1
1
1
21
1
22
1
2
1
2
1
() () () ()
() () () ()
11
1
2
1
1
1
1
1
2
111
() ()
()
()
() () () ()
ZZZ
ZZ ZZ
p
pp
pN
NN
Np NN
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.