Smart Energy System Control Laboratory (SESCL)

Markus Breig (KIT)
In the control room of the SESCL the experiments can be planned, performed and analyzed. (Photo: Markus Breig, KIT)

The Smart Energy System Control Laboratory combines theory with practice. Many questions of the energy transition can only be answered with extensive simulations and complex models of energy networks, feeders, storage facilities and consumers. Precise models of the plant components are an important prerequisite for this. The physical presence of the plants in the SESCL creates a constant reference to reality and thus facilitates the implementation of the research results in real network environments. Since the experimental field is galvanically isolated from the public power grid, control strategies in borderline areas can be approved and investigated there. In addition, operating points that approach the stability limits can be controlled. Such experiments would not be permitted in the public grid.

The energy transition cannot be planned on computers alone, nor can all new ideas be tested in the public power grid. SESCL was established with funds from the Baden-Württemberg Ministry of Science, Research and the Arts (MWK). In SESCL, representatives of the most important machines and devices of power grids and heat supply systems are installed. Because electricity will be of great importance in the heating market and for mobility in the future, heat pumps and charging stations, for example, were purchased and implemented.

Simon Waczowicz (KIT)
Energy systems within the Smart Energy System Control Laboratory. (Photo: Simon Waczowicz, KIT)
Markus Breig (KIT)
The busbar matrix interconnects all the systems in the SESCL in order to quickly implement a wide variety of experiments. (Photo: Markus Breig, KIT)

Of course, only a limited number of components can be physically connected to a network in a laboratory environment. Therefore, adjacent power grids are simulated using Power Hardware in the Loop (PHIL) systems. Behind this there are fast computers and electronics that can realize a calculated power consumption or power injection. Within SESCL, the busbar matrix is the central element for the intelligent connection of the energy technology components, such as power generators, consumers, storage devices, lines and other network equipment. The busbar matrix allows new experiments to be interconnected and thus configured very quickly. 27 switchgear cabinets are filled by the required switchgear.

Research topics

  • Integration of Distributed Renewable Energy Resources (DER) into a microgrid
  • System stability analysis (voltage, frequency and rotor angle stability) in converter dominated grids
  • Validation of new control strategies
  • Behaviour of a microgrid in relation to the power grid
  • Behaviour of largely autarkic cells (e.g. experimental houses) towards the microgrid



→ to the detailed SESCL laboratory equipment

Busbar matrix as the central connecting element of all electrical components
  • AC and DC busbar
  • High frequency measurement of all connected electrical components
  • Automation system
LLEC experimental buildings including their individual energy technology systems
  • Heat pump house
  • Power House
  • Gas2Heat house
  • RLC loads
  • Asynchronous machine
  • Lighting installation
  • Consumer as power hardware-in-the-loop system
  • Network connection
  • Gas generator
  • Micro-CHP
  • Photovoltaic systems
  • Power amplifier as power hardware-in-the-loop system
  • Supercaps
  • Lithium-ion battery storage
  • Flywheel mass storage
Reactive power components
  • Capacitors
  • Inductors
  • Phase shifter
  • FACTS (Flexible Alternating Current Transmission System)
  • Battery electric vehicles
  • (V2G) charging stations for electric mobility
Network resources and other components
  • Reproductions of management
  • Transformers (rONT)
  • AC/DC converters
  • Converter

→ to the detailed SESCL laboratory equipment


Contact persons

Friedrich Wiegel
Friedrich Wiegel
Head of Smart Energy System Control Laboratory (SESCL)

friedrich wiegel does-not-exist.kit edu