Energy management

The DC/DC converter is responsible for the power flow to and from the supercapacitor module while the module acts as a high-cycle energy buffer. Depending on the targeted industrial application different firmware can be implemented in the converter. Each configuration leads to a different industrial product:

  • Energy recovery (ERS): ESC-60kJ-ERS
  • Peak Shaving (PKS): ESC-60kJ-PKS
  • Electronic counterweight (ECW): ESC-60kJ-ECW
  • Fast Emergency Supply for drives (FES): ESC-60kJ-FES

Working with supercapacitors

Benefits

  • High power density
  • > 97 % efficiency
  • High life expectancy > 1 Million cycles
  • 100 % DoD without degradation
  • No maintenance
  • Energy stored in potencial > No leakage
  • Operation at up to -40 ºC

Requirements

Current vs Voltage Variation: Discharge at constant power
Current vs Voltage Variation: Discharge at constant power

Supercapacitors provide high peak power with very low energy. DC converters must be able to work with a wide voltage range.

Operation and connections

  • Connection to DC link of drive
  • Valid for any 230/400 Vac drive
  • Automatic operation for ERS and FES
  • Bidirectional to charge from mains
  • Different uses for drives
    • Energy Saving
    • Peak cut
    • Electronic Counterweight
    • Fast emergency supply
Supercapacitors Operation and connections

Applications

Energy Recovery System with supercapacitors

ERS

Energy Recovery System
with supercapacitors

a braking energy recovery system, fully compatible with any regenerative application

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  • Automatically detects when there is generation and absorbs it before the braking resistor does.
  • Returns the energy stored in consumption trips or standby.
Power profile from mains, motor and ESC - ERS
Power profile from mains, motor and ESC – ERS
EPC custom

PKS

Peak shaving
with supercapacitor

avoid peak power consumption from the grid using energy storage based on supercapacitor

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  • Discharge enabled by external controller when peak cut is required.
  • Automatically charges the supercapacitors from mains and braking energy.
Power profile from mains, motor and ESC - PKS
Power profile from mains, motor and ESC – PKS

Our solutions for drives

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    Case studies

    Case study

    AGVs & shuttles (supercapacitor powered)

    Bidirectional DC/DC converters applied to shuttles allow energy consumption from supercapacitors and charge from the grid with only one component. Electrified monorails become unnecessary in warehouses.

    Case study

    Logistics – AGVs (battery powered)

    Reduction in size, cost and weight in battery powered industrial vehicles through DC/DC converters. DC motors are removed in favour of AC more standard and smaller solutions.

    Case study

    Cranes

    A hybrid powered solution for cranes achieve reductions in fuel consumption, size of generator and braking resistor bank. Energy stored is used by a DC/DC converter to counterweight the power requirements and save the braking energy.

    Case study

    Industrial Elevator

    Electronic counterweight and peak shaving can be provided by a bidirectional DC/DC converter-based solution working with batteries and/or supercapacitors.

    Case study

    Passengers Elevator

    The use of less power from the grid or the reduction of the overall energy consumption can be achieved with battery and/or supercapacitor powered DC/DC converter-based solutions.

    Case study

    Hybrid boats

    Combine a traditional fuel generator with a battery- powered system based on DC/DC to make a hybrid boat. Charge your batteries from the wind and move the boat freely without the need for it in the harbour.

    Case study

    Off-grid hydrogen generation

    Off-grid solar panel powered solution to feed hydrogen fuel cells through isolated DC/DC converters. Each converter provides MPPT per solar string to achieve highest efficiency.

    Case study

    On-grid hydrogen generation

    Flexible solution for grid-connected hydrogen fuel cells through isolated DC/DC converters. High efficiency, robustness and easy parallelization for infinite combinations of power requirements.

    Related content

    Do you need help?

    We can help you integrate if you already know what product you need, or decide and design an entire system.

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