• Electrical Systems

AET Control and Electrical Systems

AET Electrical Systems for Plants with High Output and Low In-house Consumption

The boiler plants at Aalborg Energie Technik a/s (AET) are equipped with electrical systems that support our goal of building plants with a high output and a low in-house consumption. Based on our customers´ demand for low operating and maintenance costs compared to invested capital, we strive to equip our plants with the best technology based on advanced but nevertheless well-proven solutions.



The electrical distribution systems that we are working with include the following main areas:

  • Generation and distribution of electrical power
  • Medium voltage systems, panels and transformers for voltage level 6-20 kV and effects up to 25 MVA
  • Low voltage distribution and centralised generation from the power station with 400 V and 690 V systems
  • UPS systems
  • Earthing and lightning protection
  • Lighting systems and fire incident reporting systems.

Control Systems

We work primarily with control systems from Siemens: Simatic S7, WinCC and PCS7. In addition, we have experience with systems supplied by ABB, Rockwell and Eurotherm and others.

Our safety system meets the strictest requirements from TÜV for plants intended for operation with constant supervision.

We use KKS numbering (VGB Richtlinien, Kraftwerks-Kennzeichen-System) of systems and components.


Plant Structure and Key Concepts

AET’s design of the control systems includes local periphery, fieldbus technology, communication network and servers.

We can also provide the control system with a modem for remote control in order to facilitate service activities.


Key Concepts

  • Screen-based operation and monitoring
  • Data collection and data processing
  • Alarm handling
  • Supervision of operating parameters
  • Controllability
  • Optimisation
  • Reliability.

Schematic representation of the electrical distribution system.

Efficient electrical systems and sophisticated control systems are necessary in order to obtain low in-house consumption.

Electrical cabling for a biomass-fired power plant.

The electricity produced by the biomass-fired power station is transformed before sending it out into the grid.

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  • Aalborg Energie Technik a/s
  • Alfred Nobels Vej 21F
  • DK-9220 Aalborg East, Denmark
  • Tel +45 96 32 86 00
  • aet@aet.dk