INGENIEUR
that the role of the power
system control centres/national
load dispatch centres will be
transformed into the role of a
Transmission System Operator
(TSO). TSOs also include all grid
owners/operators regardless of
unbundling status.
Since nine out of ten AMS
operate on a nominal system
frequency of 50Hz, it is
envisaged that interconnections
between the AMS national power
grids within the APG will mostly
be AC interconnections, except
asynchronous interconnection
with the national power grid of
the Philippines, which operate
on 60Hz DC asynchronous
interconnection will not have
the type of operational issues
associated with synchronous
AC interconnections, potential
solutions recommended
for operational issues in
this document will focus on
solutions for synchronous
interconnections.
Potential solutions proposed
take these developments into
consideration and use the term
TSO instead of power system
operator or load dispatcher in
the deliberation.
Way Forward
Most of the potential solutions
recommended are deemed
essential to be implemented
before the APG is in full
operation. These recommended
requirements or provisions
will require more in - depth
examination taking into
consideration specific situations
in existing grid codes and
power grids of all AMS. Such
examination and development
of specific requirements may
6
64
ASEAN Power Grid
Control
Area
Control
Block
Interconnection
Figure 3: Relations between Control Blocks, Control Areas and APG
have to be under taken in
consultation with respective
national regulatory bodies and
other stakeholders.
There are examples of
minimum common standards of
other large regional power grids
that have been in operation for
quite some years. HAPUA may
wish to explore the adoption of
some of the major elements,
e.g. frequency and voltage
control standards, warning and
alert systems, etc. as the bases
for minimum common standards
for APG.
One very vital provision is
to develop real-time monitoring
capability of all TSOs and to
establish an ef ficient and
reliable communication network
for information sharing among
all TSOs. This would minimise
the risks of miscommunication
among TSOs and expedite
necessar y remedial action
within the shortest possible
time. However, due to the
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VOL 55 JUNE 2013
in f r as t r u c tu r e a n d c os t s
involved, an implementation
plan would have to be drawn out
jointly by all countries in order to
achieve the stated objectives.
C o mp r ehensi ve sys tem
defence plan and System
Restoration plan for the APG
is another important set of
processes and procedures
that need to be developed
in c o nsul t a t io n w i t h all
stakeholders.
Other Important Factors
ASE AN members are at
different phases of economic
development as well as at
different phases of restructuring
their electricity sectors. It is
important to ensure that the
minimum common standards
which are to be adopted
would not hinder economic
development or restructuring
electricity sector. Similarly,
AMS Government agencies