Active Front End (AFE)

The AFE is the interface between the AC grid and the DC grid. This device is bidirectional 50kW, 100kW, 150kW, 200kW versions in 350Vdc or 700Vdc DC grid voltage.

Description

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Features

  • Isolated DC output for 350V or 700V Systems
  • Bidirectional power flow
  • Suitable for PV applications and DC loads
  • 700V or 350V grids with COS compatibility
  • Current OS Protocol compliant
  • Ease of maintenance
  • Communication ports
    • RS485 MODBUS AC Side for AC parameters and grid operator functionality.
    • RS485 MODBUS DC Side for DC parameters and Current/OS functionality
    • USB-B connector for user config and monitoring
  • Can be combined with:
    • FG-SPO-xxx PV solar micro converters for 350V systems
    • AMPT PV string optimizer for 700V systems
    • Solid-state Current Routers
    • Hybrid Current Routers
    • DC/DC Battery converters

AM1L

AC/DC converter including Current Router for small safe DC grids based on 350Vdc up to 1kW. This converter makes a safe isolation in the DC grid with all the smart features in it.

Description

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Features

  • Full DC protection
  • Natural cooling (no fans)
  • Soft inrush on the AC grid Type B 6A breaker can be used
  • DC galvanic separated from the AC grid
  • DC TCN connection
  • Digital I/O: 2x User input and 2x User output
  • No breaking current
  • Fully DC RCD functionality <0.1sec @1...50mA fault current
  • Full control by Power Line Communication
  • PLC CENELEC A Band G3
  • PLC Mesh, star, or point-to-point network topology
  • Electrical Mesh, star, or point-to-point
  • Superior AC/DC efficiency >95% including housekeeping, management, communication and Power Line communication.
  • Bipolar ±350Vdc or single 350Vdc grids
  • RS485 MODBUS for user configuration or by USB-B
  • Current/OS server v1.0
  • 100% digital based on a DSP
  • Firmware can be updated
  • Long lines up to 3.5km cable length