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Energy storage systems for industrial production

Energiespeichersysteme für die industrielle Produktion
: Richter, Mark; Kolesnikov, Artem

presentation urn:nbn:de:0011-n-3995798 (4.5 MByte PDF)
MD5 Fingerprint: aadf82746c5ba30b9ac8db3c52d8e4d1
Created on: 15.6.2017

Putz, M. ; Fraunhofer-Institut für Werkzeugmaschinen und Umformtechnik -IWU-, Chemnitz:
Produktivität versus Robustheit : 4th International Chemnitz Manufacturing Colloquium ICMC 2016; Proceedings / Tagungsband; HPC 2016; 31.05.-02.06.2016, Chemnitz
Auerbach: Verlag Wissenschaftliche Scripten, 2016 (Berichte aus dem IWU 95)
ISBN: 978-3-95735-047-3
International Chemnitz Manufacturing Colloquium (ICMC) <4, 2016, Chemnitz>
Conference on High Performance Cutting (HPC) <7, 2016, Chemnitz>
Conference Paper, Electronic Publication
Fraunhofer IWU ()
Batteriespeicher; Nichtwohngebäude; Eigendeckung; Strombedarf; Batteriespeichersystem; energy storage systems; Industrial production; servo press

According to legal regulations, renewable energies shall make up a larger share of power supply. It is planned that the share of renewable energies will be at least 35% in Germany in 2020 and by 2050 it is supposed to be 80% (EEG 2012). Such laws and associated demands for an increase in energy efficiency force manufacturers and operators of production technology to develop and use energy-efficient machines and plants. This paper discusses the use of energy storage systems at various distribution levels of industrial production. Using a forming machine as an example, the application of two different energy storage systems in the drive intermediate circuit is practically examined. A simulation model in Matlab/Simulink is proposed for representing the power flows between the mains supply, the consumers and the storage systems. The description of production machines/plants and processes and the behavior of the electric components are used to control the energy storage system and to influence the process regarding a reduction of peak power. The increasing decentralization of energy generation and the volatility of the wind and solar energy have focused political and economic attention on the use of energy storage systems in the last three years. Storage systems for electrical energy mainly focus pn applications in electric mobility, the integration of large wind and solar parks and the use of energy from photovoltaics in the building sector. Current investigations in industrial production are limited to determining the potential use and energy savings due to energy storage systems. However, they remain theoretical and on a local level without considering the specific methods for ideal design and operational management of an entire system. The design, commissioning and operational management of modern energy storage systems with a higher energy density in machines and plants of industrial production has so far only been discussed, but not industrially implemented on a larger scale. It is only in a few real applications that the specific requirements and possibilities of production technology are partially considered, or individual project-based solutions are developed. These requirements and possibilities include the decentralized recovery, storage and reuse of process energy, but also the capacity of Integration and diagnosis. At the same time, extensive activities to increase energy efficiency are carried out in all areas of industrial production and their environments. On different levels, numerous activities regarding components, machines, plants, but also complete sites are to be investigated. Energetic savings potentials shall be demonstrated, solutions shall be developed to increase and implement increase in efficiency. In the area of electric energy, the following main challenges were identified: (1) Reduction of the base load power consumption of power supply companies; (2) Reduction of cost-intensive peak loads; (3) Decentralized use of renewable energies; (4) Integration of production sites into future intelligent power grids. Equipping machines and plants with a certain degree of time-limited self-sufficiency (for example, regions with unstable energy supply) is also a significant objective for machine and plant engineering, which is strongly export-oriented. From an economic point of view the current economic efficiency is insufficient in most of the use scenarios for energy storage solutions in industry. However, in the last few years the investment cost for energy storage systems have plummeted, which means that monetary incentives for their use will increase in the foreseeable future. Additionally, comparably novel energy storage systems offer further advantages to industrial production technology due to their innovative properties and characteristics. For example, they feature stable and predictable power profiles and time-limited self-sufficiency of components and machines. Industrial companies have to actively participate in the future energy market ("smart grid"); out of self-interest and for reasons of political economics. Their "energetic flexibility" will determine which marketing opportunities are possible. In addition to the prevailing boundary conditions (existing production technology, applied technologies, production planning, production sequence), energy storage systems will determine this flexibility to a large extent.