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System Overview
38
5.1.8 Flywheel Module
The Flywheel Module houses several major components:
• The Rotating Group (high-speed carbon composite flywheel, high-speed shaft and rotor of the
Motor-Generator)
• The Motor-Generator (synchronous reluctance technology)
• The Molecular Vacuum Pump
• Flywheel Sensors
• Active Magnetic Levitation Hardware
• Safety System
Figure 38 Liebert FS flywheel module
Carbon Fiber
Flywheel
Liquid Cooling
Passages
Inner Housing
M-G Stator
Axial Electromagnet
Upper Radial
Electromagnet
Molecular Vacuum
System
Synchronous Reluctance
4-pole M-G Rotor
Lower Radial
Electromagnet
DISCONTINUED
PRODUCT