DC RSB efficiency with DC technology Integration in industry, renewable energies, and infrastructure
Flexible integration and many different combination options C DC Renewable Storage Backbone DC RSB Combination of different storage systems and sinks Optimized energy transfer via the DC link system Bidirectional energy management between sources and sinks Scalable for different functions Solution based on industry-proven standard products 2
References 1 2 Project charge@work Fraunhofer IAO Stuttgart Project partner Fraunhofer IAO System configuration 10-kW small wind turbine (in preparation) 30-kW photovoltaic system 100-kWh lithium-ion storage system 30-kW electrolyzer (in planning stage) 30-kW fuel cell e-charging stations, 340-kW overall output SINAMICS S120 Active Line Module SINAMICS S120 Motor Module SINAMICS DCP Local grid controller Project description charge@work is investigating the interaction between many different kinds of smart grid participants. In the project, energy inputs from sun and fuel cells are coupled with loads like charging stations for electric vehicles. Highlights Black-start capability of the system, separate network operation, compensation of the intermediate circuit in the milliseconds range Project scope Delivery of the power inverters and switchgear cabinets Start-up of the power and control electronics Provision of the DC link system control Project run time Three years Project BESS Karlsruher Institut für Technologie (Karlsruhe Institute of Technology) Karlsruhe Project partner Karlsruher Institut für Technologie (KIT) AccuSol System configuration 36-kWp photovoltaic system 50-kWh lithium-ion storage system SINAMICS S120 active line module 250 kw SINAMICS DCP 30 kw SIMATIC S7 1500 SIMATIC ipc Project description DC coupling of photovoltaics and Li-ion storage system. Energy balancing occurs primarily on the direct-current side. A specific request can be issued to the nano grid via an energy management system. Top priority is given to increasing battery life through decoupling of the battery via SINAMICS DCP. Highlights Prototype for DC RSB and development platform for SINAMICS DCP of the first generation Project scope Delivery of the power inverters and switchgear cabinets Start-up of the power and control electronics Project run time Two years 3
3 1 Project Bohemia Rhapsody ZEBOTEC GmbH, Konstanz/Prague Project partner Zebotec GmbH Werft Bolle Prague Boats System configuration 50-kWh lithium-ion storage system Diesel generator 80-kW bow thruster SINAMICS S120 basic line module 50 kw (limited) SINAMICS DCP 30kW SENTRON switching technology Project description The Bohemia Rhapsody tourist boat operator wanted a redundancy solution designed. The requirement was for a method of supplying the bow thruster with electricity for 30 minutes in the event of failure of the diesel generator. The scope of the solution was enlarged, and the battery was also used for capping the peak load. This means that the bow thruster draws a maximum of only 50 kw from the diesel generator. The additional 30 kw are covered by the battery. In emergency operation, the battery switches over directly to the bow thruster and provides the entire 80-kW power output. Highlights Redundancy operation for emergency requirement Switchover during ongoing operation Off-shore application Time-critical delivery schedule Project scope Delivery of the power and switchgear electronics Start-up of the power and control electronics Project run time Three months from award of order to acceptance 2 3 4
DC RSB the innovative solution for industry and the smart grid DC RSB Renewable Storage Backbone The DC Renewable Storage Backbone (DC RSB) is an innovative solution suitable for industrial applications as well as multi-generator applications in the renewable energy sector. DC RSB provides the link that enables the intelligent combination of energy inputs, consumers, and storage technologies. The DC RSB system consists of a combination of reliable and proven standard industrial components that bring together the energy flows of the connected systems via a DC intermediate circuit. Internal protection and control mechanisms keep the system in operation. The system is flexibly assembled and controlled depending on the operator s requirements. Priorities can be matched in real time during operation. This means that DC RSB can implement a variety of different operating modes, including reducing peak load or increasing on-site consumption. Advantages Efficient utilization of renewable forms of energy Covers load and production peaks Higher grid stability thanks to grid support High degree of flexibility in the use of energy sources in the grid System components The DC components in the DC RSB systems are linked to the voltage intermediate circuit via the DC/DC converter. The direct current system offers advantages with the single point of AC-Connection: Different system participants with different attributes interact and are equalized directly on the DC side. That improves the network couplings on the alternating-current side. A real time-capable local grid controller (LGC) performs the open- and closed-loop control functions in the DC RSB system. The LGC is based on the proven SIMATIC S7-1500 automation system, which is designed specifically for innovative system solutions. 5
Subject to change without prior notice Article No.: VRGS-B10003-00-7600 Dispo XXXXX WS 0316X.X Printed in Germany Siemens AG 2016 Subject to changes and errors. The information given in this document only contains general descriptions and/or performance features which may not always specifically reflect those described, or which may undergo modification in the course of further development of the products. The requested performance features are binding only when they are expressly agreed upon in the concluded contract. Follow us on: twitter.com/siemensindustry youtube.com/siemens Siemens AG Process Industries and Drives Division Process Automation and Engineering Vertical Glass & Solar Siemensallee 84 76187 Karlsruhe Germany