The IEC and
MVDC stakeholders should work encourage
the research and development needed achieve
these ends. These benefits will extend across the entire
society, strengthening the case for the IEC and its
stakeholders accelerate the uptake MVDC
grid technology and system operations.
Given the immaturity MVDC hardware and
its application, there limited experience the
broader power system sector with the design,
installation, maintenance and repair MVDC
systems and hardware components many of
which differ significantly from their counterparts.2 Embark new standardization
activities
Considerable work required update existing
standards better reflect MVDC technology and
system integration.
The IEC, along with technology users and system
operators, should intensify efforts build familiarity
with MVDC technology and system operations.1. They inherently
involve detailed technical standardization tasks
that extend well beyond broad systems-level
coordination.1 Accelerate the uptake MVDC
grids technology
MVDC grids have the potential deliver important
benefits ranging from increased carrying capacity
and better operational fit for modern loads and
generation sources reduced environmental
impact.1.3 Form technical committee
focused MVDC grids to
coordinate and harmonize
MVDC standardization effort
MVDC grids are specialized distribution networks
clearly differentiated from HVDC transmission
grids and LVDC end-user systems.68
Recommendations and conclusion
8.
8.
.
8. New standards must also be
developed address the unique characteristics,
components and operations MVDC technology.1.
Some MVDC technologies and operational
practices are relatively immature.1 Recommendations
Considering the broad range opportunities and
challenges related MVDC technology and grid
applications, the following recommendations are
made the IEC and its stakeholders. These tasks will demand focused
technical expertise highly granular and very
practical level. By
establishing specifically focused MVDC
power grids, the IEC establish governance body
with the necessary depth technical expertise,
specialized working groups, and agility required
to deliver coherent, actionable, and readily
implementable standards.
The complexity the work and the breadth of
standardization activities necessitate dedicated
technical committee for MVDC grids.
The following are the most critical areas focus
for standardization efforts:
§ Terms and general requirements, including
the voltage(s) that define MVDC systems
or components which may need vary
depending the MVDC application
§ MVDC grid design, planning, operation and
management
§ Converter station design, testing, control,
protection and system support functions
§ MVDC switching devices and switchgear
rating, design, and testing
§ Cable and equipment insulation requirements
Given the immaturity MVDC technology and its
limited application thus far, the preparation these
standards likely require significant research
and testing. Reducing
the cost MVDC hardware components and
improving the economics (and thus the rate of
uptake) MVDC systems are critical.
8
