Kinetic energy buffering
SINAMICS S120 booksize
S120
Cabinet
Consulting/
Know-how
The challenge:
• For dynamic reversing operations in single-axis and multi-axis
systems, reuse the kinetic energy available in the system
Common
DC link bus
Functions
Customer advantages:
Servo presses, in addition, up to 10% energy saving when
compared to previous solutions with ALM
Lower line power peaks and optimized power costs
Minimized energy losses through kinetic energy buffering
Brief power failures are buffered
Hardware
Design
Unrestricted / © Siemens AG 2015. All Rights Reserved.
Page 6
2015-09-24
Planning
S120 Booksize
S120 Booksize S120 Chassis
Compact
Software
The solution:
• SINAMICS S120: Energy balancing via the common DC link
• Additional motor module connected to the common DC link,
including motor connected as kinetic energy storage device
(flywheel)
• Only excess energy is fed back into the line supply
S150
Cabinet
Energy balancing
Engineering
Power
drawn
Power fed back into
the line supply
(energy recovery)
Infeed
Module
Motor Modules
1PH8 motor as
energy storage
device
Execution
Services