ALEX – Application-oriented development, implementation and validation of an AI-based controller for LowEx temperature control systems using device-independent open-source hardware, especially in combination with external wall temperature control

Project description

The ALEX project aims at application-oriented development, implementation and validation of the AI-based ALEX controller for LowEx heating systems using device-independent open-source hardware in order to advance the heat transition. LowEx systems work with low temperature energy sources and use highly efficient renewable resources such as geothermal energy, solar energy or waste heat, to replace fossil fuels and to reduce greenhouse gas emissions. A unique feature of LowEx systems is the thermal inertia of building shells, which can be used to store heat. However, these systems place high demands on the control, so normal controllers may not be suitable.
The aim is to develop a universal controller that maximizes the efficiency and flexibility of such systems. With the help of AI-based optimization algorithms the ALEX controller is going to improve the use of renewable energy, storage and flexibility options, to enhance heating and cooling functions in buildings. The controller will be developed, simulatively and experimentally tested and optimized in several steps.
Using AI-based optimization algorithms, the ALEX controller will be a unique solution specially designed to use LowEx systems, improve their efficiency and support the use of renewable resources in the building heating market.

Project stages

1.Development of modules and simulations:

  • Development of intelligent modules (iEMS, iCOM, iRegler) to control inert LowEx heating systems
  • Simulation studies in TRNSYS to optimize LowEx potentials
  • Validation of the simulation data on the LEXU II Wand

2.Implementation of the algorithms

  • Integration of the AI-based optimization algorithms (iEMS) into the developed hardware components (iCOM, iRegler)
  • Design of an user interface (HMI) and flexible extension options for further renewable energies sources

3.Test und optimization

  • Test and optimization of the ALEX controller in real systems (LEXU II Wand) as well through more refined simulations

Laufzeit: 01.09.2024-31.08.2027
FKZ: 03EN1097

Ansprechpartner: Stephan Schulte