Answer Posted / rishav gaurav
Ty
pical
advantages
of
hig
h
voltage
DC
transmission over
hig
h
voltage
AC
transmission
are
listed
below
:
1.
No
stabilit
y
problems
due
to
transmission
line length
since
no
reactive
power
needs to
be
transmitted.
2.
No
limitation
of
cable
lengths for
underground
cable
or
submarine
cable
transmission
due
to
the
fact that
no
charging
power
compensation
needs
be
done.
3.
AC
power
systems
can
be
interconnected
employing
a
DC
tie
wit
hout
reference to
system
frequencies,
shor
t-circuit
power,
etc.
4.
High-speed
control
of
DC
power
transmission is
possible
because
the
control
ang
le,
a,
has
a
relatively
shor
t
time
constant.
5.
Fault
isolation
between
receiving
end
and
sending
end
can
be
dynamically
achieved
due
to
fast
efficient
control
of
the
hig
h
voltage
DC link.
6.
Employing
simple-control
logic
can
change
the
energ
y
flow
direction
ver
y
fast.
This
can
help
in
meeting
peak
demands
at
either
the
sending or the receiving station.
7. High reliability of thyristor converter and inverter
stations makes this mode of transmission a
viable solution for transmission lengths typically over 500 kms.
8. The right-of-way needed for high voltage DC transmission
is much lower than that for AC
transmission of the same power capacity.
| Is This Answer Correct ? | 3 Yes | 1 No |
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