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All systems can be customized, even outside of the systems shown, to best fit the application.
Propulsion Systems
We deliver completely integrated electric and hybrid propulsion systems for boats. Our systems are fully customizable and are suitable for almost any application with electric motors from 10 up to 160 kW
This example shows a hybrid propulsion system, complete with shore connections, induction cooking and solar panels. This system uses an 80kW electric motor, powered by a 37kWh battery bank, backed-up by a 30kW diesel generator. A single connection is made between the high voltage bus (blue line) and the low voltage bus (green line), essentially coupling both battery banks into one large bank. This allows for a massive available capacity for household appliances. Besides, all conventional charging methods such as, wind, solar and shore power can be connected to the low voltage bus. Thus, no special charging equipment is required.
1. Main Battery Bank
For the main power source of our system, we use a high-quality battery pack. The use of Lithium Iron Phosphate batteries instead of Li-ion batteries is what makes our battery bank stand out from commonly used batteries in electric vehicles. With this battery technique it’s possible to reach almost the same energy density of Li-ion batteries while also increasing safety. LiFePo4 batteries can be extinguished with (sea)water, which is a big plus for ocean-going vessels.
Besides the increased safety, our battery pack is also very customizable depending on the available space and required power of the ship. Because the batteries are built in a brick shape, we can easily spread them on the vessel, improving weight distribution and making optimal use of the available space. Our battery bank runs at 350V nominal, this can be scaled up and down, depending on the vessel. A higher voltage is necessary for larger vessels to reduce the currents and the risk of fire.
2. Main Switch
Directly after the batteries, we implement the second stage of safety, the first being the BMS (Battery Management System) in the batteries themselves. The second stage is a switch which will trigger automatically if the system draws too much current. This switch also allows for safe maintenance on the system because it can be turned on and off manually.
3. Power Distribution Unit
The Power Distribution Unit distributes the connections from the Main Battery Bank to the rest of the systems. The box is placed close to the electric motor and generator to reduce the amount of high voltage cables required. Besides this, it also houses several safety features, like fuses.
4. DC Generator
The DC Generator is used as a back-up for the batteries when long-term load is being drawn, for example, when extended motoring is required. We chose a DC-generator because it can be much more compact than AC generators while maintaining the same power output, as well as the ease of implementation in our system. A DC generator is more compact because it can be used at any rpm, instead of the fixed rpm of an AC generator.
5. Fuel Tank
The generator is connected to the existing fuel tank, In case of using multiple fuel tanks and because of the low consumption/usage of the generator, it is worth considering using one fuel tank as a water tank instead.
6. Filter Unit
The Filter Unit is used to cancel out the electrical noise going to the motor drive. This ensures that the motor drive always receives a clean signal and can propel the electric motor smoothly.
7. Electric Propulsion Motor
We offer a large range of reliable electric motors; we can easily vary the speed and power output of the motor, depending on the application. The electric motors come with a flexible coupling adjusted to fit the propeller shaft.
8. Low Voltage Converter
This converter is the only interface between the 350V system and the low voltage 24V side. By separating these systems, we can reduce the size of the 350V system. This converter can work in both directions, which means it can charge the main battery bank from the solar power as well as the shore power; but it can also charge the secondary battery bank from the main battery bank. This way all batteries in the system are connected and share each other’s power.
9. Household Battery Bank
The Household Battery Bank is used to power the 24V system. If the vessel already has existing batteries for the 24V system, these can either be reused, or upgraded to newer or larger batteries.
10. Solar Converters
The solar converters are the interface between the solar panels and the rest of the system. These are also scalable on the available power from the solar panels.
11. Solar Panels
Solar Panels can be used to charge all batteries in the system and ensure that the batteries can also be charged during sailing.
12. Vessel Control Unit
The Vessel Control Unit is the brain of the system. It checks if all parts are operating correctly. It has, for example, full control over the main battery bank and checks if they’re all at a good status.
13. Throttle Control Lever
We offer a fully integrated control system for the vessel. This includes the throttle lever as well as an user interface panel.
14. Hotel Load Inverter
The Hotel Load Inverter is used to deliver power from the 24V system to all 230V applications, like the induction cooker.
15. Household Applications
Due to the large battery bank it is now possible to run large household applications like an induction cooker or washing machine of the batteries, without having to start the generator.
16. Shore Power Inverter
The Shore Power Inverter is used to charge the system from the shore, so the batteries are topped up for the next sailing adventure.
17. Shore Power Connector
For normal charging overnight, the normal shore power connection can be used, limiting the need of special equipment while taking into account the often limited power available at docking sites.
A fitting solution for everyone
Electric Motors
We carry a large range of electric motors which offer a solution for any application, be it a small sloop or a large yacht. The motors are very well built and are all liquid-cooled to accomplish maximum comfort, performance and efficiency.
For those traveling long distances, we offer reliable custom-made diesel generators using Yanmar engine blocks. These generators can be used with or without a noise isolating enclosure to ensure it can fit in all applications. All generators use a permanent magnet motor directly mounted to the flywheel, which increases reliability and efficiency.
To manage all systems, we developed our Vessel Control Unit. It functions as the brains of the system, and will tell each component what to do and when to do it. It is compatible with multiple communication protocols, such as NMEA2000, CANopen and J1939, to name a few. This also makes it possible to use the device outside of our systems.
Our Power Distribution Unit (PDU) ensures safe operation of the system. It houses all necessary safety equipment in one single enclosure, this enclosure also serves the purpose of being the central connection point for all components.
We have developed a range of powerful PMSM (permanent magnet synchronous motor) electric motors. These motors are meant for harsh environments which makes them great for the use in yachts. The high build quality and water cooling ensures reliable operation for years to come. The motors are available in a range from 10 - 200kW at 1500 to 2000rpm.
Reliable Diesel Generators
To ensure that long motoring hauls are possible in an as environmentally friendly way as possible, we've developed our own diesel generator together with Yanmar. This reliable generator is able to safely bring the vessel to it's destination when long motoring is required. The generator runs at variable speed for this reason the diesel generator is very compact, this allows it to be placed much more flexible. The generator output voltage can also be custom made for the battery bank size, this eliminates the need of an extra controller and allows for charging the batteries directly.
We've developed a control system for the generator which allows it to power a much more powerful electric motor directly, without the need of a battery bank.