Medium Voltage DC Transmission system

Highly efficient onshore to offshore electrification solution

Overview

While oil & gas companies are globally looking at reducing their carbon emissions, electrifying the offshore platforms appears as an interesting option for the players of the upstream sector. Electrification has developed a system based on its lates

Based on our modular multilevel converter technology, our onshore to offshore electrification solution is available for:

Distance over 100 km
Power over 100 MW, up to 300 MW
DC voltage up to 300 kV

200 MW MVDC transmission system

We propose the complete system engineering including grid harmonics study and mechanical shaft analysis.

For an optimized experience, Electrification offers real-time simulation service for design & fast commissioning.

Available topologies

Active Front End (AFE), with bi-directional, active and reactive power control
Transformer-less up to 132 kV for footprint, reliability and efficiency optimization and improved grid quality

Benefits

High efficiency: 99%
High availability, with N+1 or N+2 power cells redundancy
Lower submarine cable cost compared to AC transmission
Unmanned solution/no maintenance
High power density
Grid quality improvement
No filter needed on the grid side: cost efficiency, compactness

No reactive power compensation needed
No need for a dedicated converter platform thanks to modularity & compactness
Low carbon emissions
Immunity against fault level thanks to DC decoupling
Full flexibility available in terms of power demand
Enable the integration of offshore renewable resources
Full controllability thanks to EMS/PMS

Technology

MM7 Modular Multilevel Converters

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Energy Management System (EMS)

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