for maximum safety and dynamics at low system costs
- increase in process safety by omitting sensors and cabling liable to failure
- no maintenance needed
- suitable for high speed revolution
- reduction of costs by omitting sensors and reduction of electronics (generally from three to two inverters)
- reduction of the construction space of magnetic bearing
- omission of production and maintenance errors in the connection between sensor and controller
- elimination of signal noise and the resulting vibration of the rotor – due to the elimination of analogue paths of the sensor
- simplified commissioning of the rotors and systems
- indirect determination of position and eccentricity from electric current information
- rotating inbalance can be detected and compensated
- rotational speed limit is determined by material limits only
- for conventional magnetic bearings: a redundant control to increase safety
- all advantages of conventional magnetic bearings: no bearing friction losses, no lubricant required, adjustable bearing characteristics
- test series in the laboratory at TU Wien have proven: same control quality as sensor-based systems even with mechanically complex systems – featuring e.g. critical resonances or imbalances
- rapid conversion of existing magnetic bearing systems to sensorless operation possible
- based on tested and tried control method INFORM®, with many thousands of units in use, e.g. in medical and aviation devices
Innovation level:
- patent protection
- worldwide unique dynamic, adaptive and cost-effective system of magnetic bearings
- for the first time: new machine components possible at high rotational speed – by replacing ball or roller bearings
Target groups and applications:
- automotive, aerospace, textile industry
- electrical, mechanical, process engineering
- utilities and energy suppliers
- high speed drives, spindles
- turbo machines, pumps, gas turbines
- drive systems in vacuum
- ventilation, air conditioning
- flywheels, mechanical energy storage devices