Current research projects

This project is co-financed by funds from the European Regional Development Fund (ERDF). 

 

 

The aim of the initiative is to transfer new technologies from the NCT laboratories to new, innovative products and systems at small and medium-sized enterprises from around the region. The conversion of energy technology to ensure the sustainable supply of power, heating and cooling to buildings and processes creates market opportunities for companies wishing to address these needs with new, smart products.

However, due to the ever-increasing complexity of energy supply, the requirements for products associated with the supply of energy, such as storage facilities, heat pumps, transformers, and generators, are becoming increasingly stringent. As a result, the development risk increases, particularly for companies that have little to no testing capacity themselves and are not currently able to make use of highly specialized simulation methods.

This is where the project comes in: companies with ideas for products can access laboratory facilities more easily and take advantage of the possibility of knowledge transfer via theoretically and practically oriented seminars.

>> further information regarding the research project

Contacts

Armin Dietz Armin Dietz
Prof. Dr.-Ing.

Completed research projects

FIKAT4.0 – smart and flexible miniature drive technology for Industry 4.0

Subject area:

Control of electrical machines

Keywords:
  • Model-based predictive control (MPC)
  • Flexible fieldbus connection (PROFINET, EtherCAT)
  • Innovative control methods for power electronics systems
  • Small-scale drive technology
Description:

Taking account of the requirements of Industry 4.0 in the areas of communication, miniaturization, and energy efficiency, the research project will develop a concept for a modularized small-scale drive system. Alongside a uniform communications module that must support several established field bus protocols, this system will also include power modules of various sizes. The focus will not just be on the miniaturization of the power module, but also on flexible design. The intention is that direct current and alternating current motors will be operated within the same power module.

By testing smart, predictive, and model-based control methods in an application-oriented way, the research project should be capable of demonstrating the potential offered by this innovative control method. The intended hardware will serve as an evaluation platform that will enable promising algorithms to be adopted quickly.

The significant growth in the market for small-scale propulsion technology can no longer be excluded for considerations of efficiency. The research project should take account of the drive system as a whole and demonstrate increases in energy efficiency and dynamics by means of smart, predictive, model-based control methods.

Contacts

Subject area:

Electrical machines and drive systems

Keywords:
  • Computation of electrical machines
  • Influence of manufacturing on the electrical laminations
  • Performance of measurements on magnetically soft materials
Description:

The bundle of laminations is a central component of an electric motor. During its production, it is subjected to a number of manufacturing influences, which have a negative impact on the performance of the machine. As a result, efficiency falls and losses increase. The aim of this research is to shape production and the design of the machine in such a way that the negative influences of processing are minimized. In order to achieve this, the influence of the individual stages of manufacturing on the magnetic properties of the material used for the electrical laminations must be precisely determined.

Specializations within the project are analytical projections of the increases in losses and magnetization requirements caused by the individual manufacturing stages, and confirmation through the use of finite-element simulations. Measurements performed on processed electrical laminations and on manufactured motors form the basis for all calculations and validations.

Contacts

Martin Regnet Martin Regnet
Subject area:

Energy-efficient electric drive system and machine designs

Description:

The MeViSys project is expanding the range of vibration measurement technology available at Nuremberg Tech to include a 3D scanning laser vibrometer, which includes a rotational vibrometer. Such measuring equipment is essential to the verification of simulation models that have been developed to investigate the vibration and noise characteristics of electrical machines. Using these models, the energy efficiency of electrical machines can be increased and their vibration load reduced. It is also possible to improve the noise characteristics. The MeViSys project contributes to knowledge transfer and allows small and medium-sized enterprises in particular to access high-precision measurement technology.

Contact persons

Armin Dietz Armin Dietz
Prof. Dr.-Ing.
Subject area:
  • Model-based system optimization
  • Mechatronic systems
  • Embedded systems
Description:

The continually growing demands being made in terms of small-scale propulsion technology, coupled with the growing market in this field, make it necessary to continually enhance performance, efficiency, and flexibility. The aim of the MIKA research project is to increase energy efficiency and dynamics by looking at the drive system as a whole and to develop and test ways of implementing new optimization criteria through the use of smart and model-based predictive control methods (MPC) in an industrial setting.

 

 

One subproject within the research project makes use of the “HyperBus Memory Controller IP”, which has been kindly made available to us by our partner Synaptic Laboratories LTD.

Contacts

VerInA – hysteresis losses in hard magnetic materials used in highly dynamic industrial drive systems

Subject area:

Electrical machines and drive systems

Keywords:
  • Computation of electrical machines
  • Determination of losses
  • Permanent magnet synchronous motor
Description:

In order to excite the magnets in permanent magnet synchronous motors, manufacturers of electrical machines are increasingly turning to neodymium-iron-boron magnets (NdFeB magnets), as they are able to offer extremely high energy density. The disadvantage of NdFeB magnets is that they demonstrate relatively high electrical conductivity, which can lead to high losses as a result of eddy currents that are induced in the permanent magnets by tooth and coil ripples within the air gap. The losses cause the magnets to heat up. Under unfavourable conditions, this can result in irreversible demagnetization of the magnets and the subsequent destruction of the electrical machine.

The calculation of the losses in the magnets is a three-dimensional field issue. As a rule, the 3D finite element method (3D-FEM) offers the possibility of mapping a problem of this nature. However, the variation of the geometric relationships is costly and the calculation is extremely time and cost-intensive, and therefore unattractive for industrial firms. The aim of this research project is therefore to develop a (semi-)analytical computational model to allow the approximate losses in the magnets to be determined during the design phase for the electrical machine.

Contacts