Energy- and power regulation
Produce at optimal cost by choosing the right energy management in metal forming
With an energy management system adapted to the application, you can effectively even out the power requirements of a press. Servo presses without energy management have no buffer for the kinetic energy in the system, which is why the power they draw from the grid is characterized by large differences between the average value and rms value. Installing a “full-size” energy management system makes it possible to utilize the numerous technological advantages of servo presses under the most cost-effective conditions. In the case of hydraulic presses, optimal energy management is profitable for both new plants and retrofits.
Smart energy management for pressesOptimize energy usage to ensure greater cost-effectiveness and environmental compatibility in sheet metalworking
Sophisticated energy management pays off in every respect. Siemens provides appropriate energy management solutions for both servo presses and hydraulic presses. These use both kinetic as well as capacitive energy storage. Cost savings and increased flexibility are particularly significant with servo presses.
Energy management for servo presses
Ever since Siemens equipped the first servo presses back in 2008, press manufacturers and press operators have been actively engaged in the topic of energy management: Is energy management for servo presses necessary or helpful?
How does it affect the investment costs and unit costs? Is it even possible to reduce the amount of energy that servo presses consume?
The starting point when clarifying these questions is always the metal forming process itself with its specific requirements.
Power peak compensation
In addition to dynamic energy management, energy storage makes it possible to reduce energy costs by avoiding expensive power peaks. An energy buffer compensates for high but short power peaks in the overall cycle; this can significantly reduce the total power infeed for the machine.
The investment for the energy storage required to compensate for power peaks is more than offset by the overall lower energy infeed and the more consistent energy consumption of the machine.
Thanks to the scalability of the energy storage, the concept, which is currently implemented primarily in hydraulic presses and hydroforming equipment, can also be used for other technologies that have a short power peak in a cycle of generally low power requirements.