This white paper provides overview how
MVDC technology can ease the shift all-
electric society and the great benefits can bring
to power system operations. While some
existing infrastructure may reused build
a MVDC grid, care needed, applying DC
voltages may alter the ageing characteristics of
that infrastructure.
MVDC grids differ noteworthy ways from
HVDC and grids. so, recommended that
the IEC and stakeholders take the following steps:
§ Work accelerate the uptake MVDC
grids technology. Such work should include
encouraging new R&D efforts reduce the
technical challenges MVDC grid operations.
Power system operators and regulators should
also work increase their general knowledge
of MVDC technology, and its benefits and
challenges.4
Executive summary
§ Improved energy efficiency: MVDC grids
experience lower losses than grids. Serious work required update
existing standards relevant MVDC
technology and system integration, and to
create new standards focused the unique
characteristics and components MVDC
technology and system operation. large body highly
technical new standardization work required,
spanning many IEC standardization efforts and
resolving existing conflicts uncoordinated
MVDC standards work. The most
critical areas focus for standardization effort
are terms and general requirements, earthing,
protection MVDC systems, converter
stations, MVDC circuit breakers, and cable
and equipment insulation requirements.
. Rapid growth expected
in all global regions, with slightly faster growth
in Europe due commitments European
governments the energy transition. Studies of
this growth have not yet differentiated MVDC from
the broader “DC distribution” category, but MVDC
applications are expected constitute major
portion the demand. MVDC grids are currently more expensive
than their counterparts although this is
expected change MVDC technology becomes
more widespread and research and development
(R&D) reduces component costs.
The market for power technology general
is very large; some estimates suggest the global
DC power distribution technology market will reach
USD billion 2030.
§ Material and resource optimization: MVDC
requires much less copper and steel
infrastructure than systems, improving
sustainability.
Shifting widespread MVDC grid operations will
require major changes operational practices
and the overcoming some remaining technical
barriers. also investigates
how the IEC and stakeholders can help realize
these benefits.
§ Embark new standardization
activities.
§ Form technical committee focused on
MVDC grids coordinate and harmonize
the IEC’s MVDC standardization efforts
