The Switch DC-Hub for multi-megawatt DC power distribution
The Switch DC-Hub
The Switch DC-Hub is built from our proven building blocks to provide a vessel with a flexible choice of power generation, energy storage, charging, propulsion power and clean power – all connected to the DC bus, the backbone of The Switch DC-Hub. It comes with a suite of four game-changing building blocks to secure ride-through operations. Vessels can continue operating at full power, unaffected by any electrical fault.
These proven blocks make it easy for you to build your own DC-Hub to fit the exact needs of your vessel. For system integrators, our simulator allows you to develop the configuration without hardware. Our maintenance tools are purpose-built for the job.
The Switch DC-Hub includes
the following building blocks:
- Motor/generator inverter (MI/GI)
- Active front end (AFE) for grid connection
- Electronic Bus Link (EBL) to connect DC-Hubs together
- DC/DC chopper to connect DC sources to the system
Marine-specific design
| Future-flexibility | No compromises in features, materials or solutions |
| Durability | Very simple and robust cabinet structure |
| Copper-based cooling system | No water station needed, can be connect to a vessel’s freshwater cooling system |
| Smooth operations | Stiff pedestal and vibration dampers under cabinet |
| IP44 enclosure for both power module and cabinet | Robust for the environment and protects sensitive components against failure |
Our unique, ultra-fast DC distribution protection method makes low-voltage DC power distribution safe, efficiency and redundant for fully electric and hybrid vessels.
Full suite for safety
The Switch Electronic Bus Link
- Ensures complete redundancy
- Forms a ring network from multiple DC-Hubs
- Guarantees selectivity between DC-Hubs
- DP3 tested and approved by DNV
The Switch Electronic Current Limiter (ECL)
Connects the battery directly to the DC link to protect it from external failure and ensure ride-through. It functions similar to the EBL.
The Switch Battery Short-Circuit Limiter (BSCL)
Restricts any short-term current from batteries, immediately blocking the short-circuit system. This allows more batteries to be connected to the electrical system and fewer DC-Hubs, making the entire system more compact.
The Switch Electronic DC Breaker
- Ensures least possible energy disruption
- Cuts and isolates faults within 10 microseconds
- Integrated in every inverter connected to a common DC link
- Prevents any voltage drop, enabling ride-through
Easy to configure with our library of building blocks
- Choose building blocks from the library
- Application
- Electrical parameters
- Select your DC link configuration
- Define your power scope and physical size
Power modules
- High-power module with EDCB for high-power applications
- Flexible module with EDCB to combine functionalities
- Half module with EDCB for small powers
- Electronic Bus Line (EBL) connects The Switch DC-Hubs together
Power modules built for marine
| Integrated EDCB | A dedicated, fast and predictable protection device for the power module |
| Robust power modules for marine | No compromises in features, materials or solutions |
| Digital gate driver with fast measurements | Provides accurate data for condition monitoring |
| No du/dt filters needed | Simplified maintenance, save costs |
| Fast connectors in power module | Enables fast and and easy service by the vessel crew |
| IP44 enclosure for both power module and cabinet | Robust for the environment and protects sensitive components against failure |