What does a DC/DC converter do?
To help improve performance by making better use of energy, energy storage is increasingly being introduced into systems to create hybrid solutions. Various storage methods are being used but, due to reductions in battery costs and increases in energy density, battery utilization is seen as being the fastest growing and more easily integrated storage medium available today. DC/DC converters can be used to connect to sources such as batteries, super capacitors, fuel cells and solar panels.
Energy support close to the consumption
Due to the wide input range of the source voltages, for example battery, the VACON® NXP DC/DC Converter application can be used to match source voltage to a common DC bus system. This method utilizes the stored energy to create the right DC bus voltage required to operate the machinery running on these hybrid systems.
VACON® NXP DC/DC Converter is well suited to containerized energy storage solutions. Scalable solutions mean you can easily balance the grid while growing your plant. The VACON® NXP DC/DC Converter application can be installed in both liquid- and air-cooled VACON® NXP drive modules.
Supply voltages and power range
Air-cooled
- 3 x 380-500 V...180-1100 kW with battery voltages from 100Vdc* to 800Vdc**
- 3 x 525-690 V...200-1200 kW with battery voltages from 100Vdc* to 1100Vdc**
Liquid-cooled
- 3 x 380-500 V...160-1800 kW with battery voltages from 100Vdc* to 800Vdc**
- 3 x 525-690 V...210-1800 kW with battery voltages from 100Vdc* to 1100Vdc**
*Minimum voltage is case dependent
**Depending on system DC bus voltage. Source (battery) voltage must always be lower than the DC bus voltage.
Features and benefits
Using the same VACON® NXP hardware and control platform, DC/DC converters require very little additional investment for the same amount of system flexibility
A modular solution, DC/DC converters are easily added to the DC bus of a system providing almost instant access to additional DC sources and easy expansion
Utilizing the same VACON® NXP hardware configurations, service teams require little to no additional training
Wide range of current ratings ensures simpler integration of an extensive variety of common battery bank voltages
Aging battery stacks are easy to replace to ensure reduced downtime
Compatible with a wide variety of DC voltage sources or energy storage mediums
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Related applications
- Peak shaving
- Integrating renewable energy sources (solar, fuel cells) to common DC bus systems
- Adding energy storage (batteries) to common DC bus systems
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Draw upon expertise from Danfoss to optimize energy storage solutions using drives for power conversion both on board vessels, and in shore power supply for quieter and cleaner harbors.
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For more efficient operation and greater freedom in ship design, consider an electric-based main propulsion with engineering from Danfoss.
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Achieve maximum uptime even during grid disturbances. Flexible targeted battery-based industrial DC backup solutions direct power supply to the most critical loads.
These solutions support a combination of different energy storages to ensure a stable power supply when the national grid is unreliable, and ensure continuous running or controlled ramp down when required.
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Balancing supply and consumption is a complex task in a distributed smart grid, and this is where Danfoss supports you with certified power conversion solutions, saving you time, cost and effort in testing and certification.
Case stories
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NORWAY: The Hareid-Sulesund ferry operations have reduced CO2 emissions by 7000 tonnes annually with the introduction of electric vessels. In transitioning ferries from diesel to pure electric power, powerful onshore support is essential, in the form of reliable infrastructure for rapid charging capacity and stable grid supply. The systems on board and on shore act as a single system – a sophisticated and competitive system developed by Norwegian Electric Systems (NES) using Danfoss technology.
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ITALY: In the innovative laboratory of Nuvera Fuel Cells, the VACON® NXP series contributes to evaluating the performance of E-45 and E-60 fuel cell engines for electrical mobility under authentic conditions.
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CROATIA: Two fully-electric, solar-powered vessels powered by Danfoss drives ensure silent, sustainable tours through the waterways of the spectacular Krka National Park in Croatia.
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This world-first fully-electric carbon fiber vessel safeguards the pristine Norwegian fjord environment, ensuring zero emissions.
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NETHERLANDS: Passenger ferries bridge Amsterdam’s IJ River, keeping the city connected around the clock. Hybrid propulsion powered by VACON® drives ensures 24/7 uptime, smaller generator size, better air quality, less noise and easy maneuverability of the vessels.
