Novel industrial electric drive

Electric Planet Motor for higher power density at reduced costs

  • increased power density – up to 50% more power than conventional drives
  • highest energy efficiency over the entire range of application
  • extremely compact design possible
  • electric motor with multirotor structure (a stator with four/ six/ eight/ ... rotors)
  • rotors are mechanically coupled via an integrated gear unit – which becomes an integrated part of the motor
  • with four rotors: twice the power of a conventional machine with the same rotor cross-sectional area
  • at the same time less material required for the stator
  • possible as permanent magnet- or reluctance-motor (without rare earth metals)
  • sensorless control possible by means of INFORM® control and thus failsafe and with even reduced volume
  • failure safety due to elimination of sensors
  • enhanced efficiency at lower production cost
  • all electric contacts and power electronics can be placed simply at front side, opposite of output side
  • manufacturing with a high degree of automatization possible – and thus further significant cost reduction
  • prototype with integrated 1:10 reduction shows: electrical behaviour at terminals of the planet motor corresponds to a classic three-phase machine, controlled by a conventional inverter
  • 30 years experience in the design of sensorless synchronous motors
  • based on the reliable INFORM® control, used by tens of thousands of systems on the market – e.g. in medical and aerospace technology

Innovation level:

  • world novelty – worldwide first presentation of a prototype ready for industrial use
  • patent protection

Target groups and applications:

  • e-mobility
  • aerospace technology
  • construction machinery and heavy equipment
  • machine tools and production machines
  • emergency units of various sorts
  • drum drives
  • robot joint drives

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