Flexible DC backup protects Russian power plant

Thursday, September 5, 2019
Ironclad reliability

Ironclad reliability

Discover how flexible and powerful DC backup systems ensure non-stop operation despite dips in supply voltage

Industrial DC backup for boiler fans

Industrial DC backup for boiler fans

Using water-cooled drives in a “step down – step up” configuration with medium voltage motors, ART and Danfoss Russia developed an industrial DC backup system to ensure reliable operation even during voltage drops in the mains.

The powerful 1.2 MW system is also known as an uninterruptable motor drive (UMD) system and uses two 690 V air-cooled VACON® NXP DC/DC Converters.

A series of 1200 kW boiler fans supply up to 10 seconds operation in the event of main grid failure. A single battery storage is connected through the two separate DC/DC converters to 4 drives.

Igor Zobov, General Director, ART

Streamlined commissioning and service

This solution is streamlined, comprising only a few elements, simple connections, and integrated Danfoss application inside, to ensure simple commissioning and service procedures.

IC-ART offers a range of industrial DC backup systems known as uninterruptable motor drives (UMDs).

These UMDs are flexible because they cater to

  • different topologies
  • different types of AC drive
  • different energy storage technologies
  • diverse layouts
  • the use of existing batteries if desired

The Automation of Resource-saving Technologies engineering center, known as IC-ART, is located in Saint Petersburg, Russia. The team comprises 25 employees and has a long history of cooperation with Danfoss, stretching back to 1999.

IC-ART offers engineering design of AC drives and automation systems for low- and medium-voltage applications, uninterruptable motor drive (UMD) systems, and active filters for use in harmonics and reactive power compensation, as well as maintenance and repair services.

Its business areas include power generation, oil and gas, and marine and offshore industries. As of 2019, IC-ART has completed more than 700 drive automation system installations.

Discover VACON® NXP DC/DC Converter

Discover VACON® NXP DC/DC Converter

Hybridization – the future of energy is now

Hybridization – the future of energy is now

As we transition from fossil fuels, such as oil and coal, through natural gases and nuclear power and further towards renewable sources dependent on whims of weather, there’s an increasing need to overcome the gaps which arise when the scales of energy supply and demand are out of balance. Batteries and other storage technologies are becoming more mainstream.

Learn more about the drives

  • VACON® NXP DC/DC Converter
    VACON® NXP DC/DC Converter

    Maximizes the energy yield in hybrid solutions and helps improve performance by bringing energy support close to the consumption.

  • VACON® NXP Liquid Cooled
    VACON® NXP Liquid Cooled

    Well-suited to applications where air quality is critical, space is limited and efficient heat transfer is required. Active Front-end (NXA), Non-regenerative Front-end (NXN), Brake Chopper (NXB) and Inverter (NXI) configurations are available. 

Related Applications

  • Intelligent power conversion for smart grids
    Intelligent power conversion for smart grids

    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.

  • Industrial DC backup ensures no more voltage dips
    Industrial DC backup ensures no more voltage dips

    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.

Related Solutions

  • Energy and power plants
    Energy and power plants

    Get an overview of Danfoss solutions which are transforming the energy industry. Our offerings include optimization of storage and power conversion for renewable and traditional power generation sources.

Related case studies

  • Electrification and sector coupling achieve CO2 goals at FlexHeat Nordhavn
    Electrification and sector coupling achieve CO2 goals at FlexHeat Nordhavn

    DENMARK: The FlexHeat district heating plant at Copenhagen’s Nordhavn harbor emits 315 fewer tonnes per annum of CO2 than the LPG gas-based alternative.

  • World leader in biogas reduces CO2 emissions by 50,000 t annually
    World leader in biogas reduces CO2 emissions by 50,000 t annually

    By generating power and heat from biogas instead of fossil fuels, MEC-BioGas reduces its CO2 footprint by 50000 tpa. Danfoss VLT® drives ensure optimal uptime in the 24/7 operations.

  • Full-scale biogas plant in Kalundborg ensures the return of all nutrients back to nature
    Full-scale biogas plant in Kalundborg ensures the return of all nutrients back to nature

    AC drives from Danfoss help convert biomass from insulin and enzyme production to energy.

  • Solar heating plant reduces CO2 emissions by 15,700 tonnes annually
    Solar heating plant reduces CO2 emissions by 15,700 tonnes annually

    The world’s largest solar heating plant in Silkeborg, Denmark harnesses energy to heat the homes and workplaces of 40,000 citizens. It supplies 18-20% of the annual heat consumption in the city of Silkeborg, Denmark, which has an ambitious target of CO2 neutrality in heat production by the year 2030.

  • Marselisborg generates surplus power
    Marselisborg generates surplus power

    Wastewater treatment plant’s use of AC drives on rotating equipment creates net production of both electricity and heat and reduces its carbon footprint by 35%.