As shown Figure 3-3, MVDC technology may
even eliminate the need for offshore conversion
stations, thereby reducing the cost and complexity
in the rollout offshore wind projects.30
The MVDC grid
to grow dramatically over the coming decade:
installed capacity was 945 2023 and is
projected grow CAGR 6. directly
connecting energy storage the medium voltage
level, MVDC technology can allow BESS systems
to provide services such frequency control/
management and black start capability more
efficiently and without requiring transformers and
other AC-specific equipment. The global installed
capacity utility-scale battery storage was GW
in 2023 and projected grow with CAGR of
22.7% reach 109 2030 [7].6% reach
around 480 2030.3 Battery storage
MVDC directly applicable large-scale battery
energy storage system (BESS) projects.3.
3.
Figure 3-3 Connection options for offshore wind farms: (a) MVAC collector with HVAC export –
(b) MVAC collector with HVDC export (c) MVDC collector with HVDC export (d) MVDC collector
and direct export
. MVDC
collectors would require either DC-generating wind
turbines AC-DC converter each turbine. Offshore wind, which
accounted for capacity the end of
2023, forecast grow CAGR 28% to
make 380 capacity 2030 [38].
Indicative voltage levels are based existing AC
wind farms and proposed designs. MVDC can also
be used directly couple battery storage with
renewable generators, providing efficiency gains
over traditional connection
