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UltraCap modules from Siemens for efficient energy storage in machines

The UltraCap modules have a nominal voltage of 95 V and are typically connected in series in order to attain the required voltage level. They are connected via a DC-DC chopper or directly to the DC link of the Sinamics drive system. Multiple series can be used in parallel in order to tailor performance and energy content to the application in hand. The modules conform to CE and UL guidelines in both series and parallel switching. The rack housing features lateral ventilation slots and all connections are located on the front, enabling easy and space-saving installation in the control cabinet. An integrated processor monitors the ambient conditions and the state of the capacitor cells. The values obtain can be called up via a bus interface, thus enabling continuous monitoring.

Context: Smart Power Management from Siemens

The Smart Power Management (SPM) solution from Siemens features energy storage with optimum power management for the Sinamics drive system. SPM ensures machines continue to operate even with unreliable grids, that peak loads are avoided and braking energy utilized. This enables the availability and productivity of machinery to be increased while reducing installation and energy costs and cutting CO2 emissions. Smart Power Management is used in wood, glass and plastic processing, metal forming technology, machine tools, handling and robotics. To meet varying user requirements, powerful electrolytic capacitors, flywheel storage units or battery systems can be used in addition to the DLC modules. To facilitate fast implementation, Siemens analyzes the load profile and then offers advice on the selection and design of a suitable storage device and on how to optimize the power flow.
Siemens Digital Industries (DI) is an innovation leader in automation and digitalization. Closely collaborating with partners and customers, DI drives the digital transformation in the process and discrete industries. With its Digital Enterprise portfolio, DI provides companies of all sizes with an end-to-end set of products, solutions and services to integrate and digitalize the entire value chain. Optimized for the specific needs of each industry, DI’s unique portfolio supports customers to achieve greater productivity and flexibility. DI is constantly adding innovations to its portfolio to integrate cutting-edge future technologies. Siemens Digital Industries has its global headquarters in Nuremberg, Germany, and has around 76,000 employees internationally.
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Siemens AG (Berlin and Munich) is a global technology powerhouse that has stood for engineering excellence, innovation, quality, reliability and internationality for more than 170 years. The company is active around the globe, focusing on the areas of intelligent infrastructure for buildings and distributed energy systems, and automation and digitalization in the process and manufacturing industries. Through the separately managed companies Siemens Energy, the global energy business of Siemens, and Siemens Mobility, a leading supplier of smart mobility solutions for rail and road transport, Siemens is shaping the energy systems of today and tomorrow as well as the world market for passenger and freight services. Due to its majority stakes in the publicly listed companies Siemens Healthineers AG and Siemens Gamesa Renewable Energy (as part of Siemens Energy), Siemens is also a world-leading supplier of medical technology and digital healthcare services as well as environmentally friendly solutions for onshore and offshore wind power generation. In fiscal 2019, which ended on September 30, 2019, Siemens generated revenue of €86.8 billion and net income of €5.6 billion. At the end of September 2019, the company had around 385,000 employees worldwide. Further information is available on the Internet at
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Julia Kauppert

Digital Industries

Gleiwitzer Str. 555
90475 Nuremberg

+49 (174) 311-8098