Active Magnetic Bearings

Mag Bearings
NEMA are leading the development of active magnetic bearing technology for aerospace applications.
This complements our existing high-speed electric motor/generator offerings.
• Non-contact levitation eliminates friction and wear
• Active damping gives critical speed immunity
• Actuators experimentally validated (TRL4)
• 40 kW, 100 kRPM system demonstration by 2027 (TRL6)
Sponsors
19kRPM, 25kVA, MGU for Safran TTP
A collaborative project together with Safran Helicopter Engines, the University of Nottingham and Power System Technology, funded by CleanSky2/Horizon 2020
• 540Vdc operating voltage
• 24Nm full load torque
• -55°C to 70°C operating range
• Liquid fuel cooled stator
Safran Project
Electromagnetic Flux Imaging Scanner (EMFIS)
NEMA are lead participants in the development of a unique and innovative technique for the non-destructive testing (NDT) of high-reliability and high-efficiency motors.
Features:
• Rapid imaging of winding patterns and number of turns for wound field stators and armatures.
• Magnet and magnetic assembly scanning.
• Development of world-first graphene magnetic probes.
emfis logos
64kRPM, 10kVA, MGU for the HX50 Helicopter
"Cutting edge design of the direct-drive starter-generator motor dramatically reduces the cost and mechanical complexity of the engine."
Project for: Hill Helicopters
Visit website
1.5kRPM, 1kW, Wing Flap Actuator for High Altitude UAV
HARAS (High Availabilty Redundant Actuation System) project with Triumph and Kugel Motion funded by the Aerospace Technology Insitute and Innovate UK.
• Innovative segmented stator to reduce winding overhangs
• ∅50mm x 65mm
• 270Vdc operating voltage
• 2.5Nm at full load
• 0.6kg
• -55°C to 70°C
wing flap actuation
TRIGON
1.25kPRM, 30kW, Winch Motor for SATS™ Helicopter Handling System
• 600Vdc operating voltage
• ∅420mm x 130mm
• <70kg
• 110Nm full load
• -40°C to 70°C operating range
TRIGON
120kRPM, 8.5kVA, MGU for UAV Hybrid Microturbine
High speed motor generator unit for UV extended engine
• 330ml soft drink can size
• Liquid fuel cooled stator
motor design
“We partnered with NEMA because they have a unique skill set in developing cutting edge electric motor technologies that demonstrate the highest efficiencies we require. They are also able to seamlessly deliver high rates of production.”
Customer