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Logo Institut für Hochspannungstechnik und Energiesysteme der TU Braunschweig
Energy management laboratory
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Energy management laboratory

Sector coupling through efficient energy management and intelligent measuring systems

DEWESoft Sirius DAQ Measuring system
DEWESoft Sirius DAQ Measuring system

The energy management laboratory offers a space to investigate innovative energy management concepts for electricity-only household and prosumer demonstrators. The focus of the research is on prosumer behavior in the context of electromobility, the coupling of the heating and electricity sectors, load and storage management, and newly developed counting and measuring concepts. Numerous devices, such as various AC loads, DC sources, a charging infrastructure and a heat pump test stand consisting of an air-water heat pump, a climate chamber and a heating circuit can be used for this purpose. Multi-channel measuring systems from DEWESoft are used to measure the currents and voltages that occur. The power and data links between the energy management laboratory and the network dynamics laboratory also offer the option of cross-laboratory measurements. This enables the processing of new research questions and projects in the field of holistic laboratory-based research, such as the effects of a smart building on network stability.

For the central control of the electronic and thermal components, all devices are currently integrated into the ModSys-eelabs modular control environment developed at elenia. With this control environment, the user has the option of realistically reproducing a residential building that meets his requirements in just a few steps using the modular principle. Since the opening of the laboratory at the end of 2018, a prosumer demonstrator has already been set up in the NetProsum2030 project and studies have been carried out on various mobility concepts in the EnEff Campus: blueMAP project. In the future, the flexess and MELANI research projects will be processed in the energy management laboratory.

In the flexess project, the targeted use of flexibilities of technical systems in the household, tertiary, commercial trade and electric mobility fleets is examined. In this context, households with different characteristics are simulated and measured in the energy management laboratory. In the MELANI research project, measuring methods and meter concepts for the multiple use of PV home storage systems are being developed. The laboratory environment of the energy management laboratory should be used to evaluate an image of the developed concept. In addition to the research area, teaching also benefits in the form of numerous student work that can be carried out in the laboratories and the additional laboratory tests offered parallel to the lectures through the expanded laboratory environment. In addition, the extensive equipment of the energy management laboratory enables efficiency measurements of PV storage systems to be carried out in accordance with the efficiency guidelines and thus expands the service area of ​​the institute.

Übersicht - Laboreinrichtung

Efficiency measurement of PV storage systems
Efficiency measurement of PV storage systems
Charging station at the Mühlenpfordthaus
Charging station at the Mühlenpfordthaus
Heating load emulation of the heat pump test stand
Heating load emulation of the heat pump test stand
  • Characterization of efficiency, standby consumption and control efficiency of AC and DC coupled battery storage systems
  • Automated control of system components and evaluation of measurement results

Simulation of a PV system

  • Inverter: "SUNNY TRIPOWER STP 20000TL-30"

  • 2 DC sources: "Elektro Automatik EA PSI 91000-30" ( 10 kW each)

Simulation of loads

  • 3 AC loads: "Höcherl & Hackl ZSACR" (9.8 kW each)

Elenia's charging infrastructure at the Mühlenpfordhaus

  • Two Mennekes AC wall boxes with charging capacity up to 22 kW

  • Multicharger (CCS type 2 and CHAdeMO connection) for DC charging up to 22 kW

  • Physical coupling of the charging infrastructure with the energy management laboratory possible

  • IT integration using the elias charging management system developed in the Fleets-Go-Green project

  • Research on generation-oriented charging and grid-oriented charging

  • Hardware-in-the-loop heat load emulation in combination with the building software TRNSYS to emulate the heating and cooling load of buildings.

  • Climate chamber with temperature range from -5°C to 35°C, optional influence of humidity

  • Domestic hot water emulation by presetting tap profiles

  • The integration into the institute's energy management system allows the investigation of different operating modes of air-to-water heat pumps, including temperature-controlled, self-consumption-optimized and grid-serving modes

Overview - Services

  • Storage efficiency measurement implementation

  • Control method and communication protocol testing

  • Combined testing of hardware devices, simulation models, and control systems using a modular control environment (HiL)

  • Energy and Power Measurement

  • ModSys-eelabs modular control environment

  • Control and evaluation tools for memory efficiency measurements

  • Measurements at defined, constant temperature and humidity

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