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Embedded Software forPower Electronics Applications

Critical Motor Drive Applications

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Critical systems are those where failure leads to important human and financial costs and are present in many applications such as aerospace, utilities, transportation systems and defense. Electric motor drives are among those critical systems and are used as components for cooling systems (HVAC), actuators, energy storage (flywheel) and instrumentation (gyroscopes). Fault-tolerant algorithms are used in critical applications in order to extend normal operation and reduce risk of failure. Energy-efficient algorithms are primarily used in critical applications in order to maximize system autonomy where energy source is limited.

This IP has been invented and developped by the Canadian Space Agency and it is used under License by Alizem.

MOTOR CONTROL ALGORITHM AND KEY FEATURES

  • Optimal management of phase current distribution lowering losses and enhancing maximum achievable torque and speed by 20% leading to lower motor rating, weight, space and cooling requirements
  • Ripple-free torque leading to reduced mechanical stress, velocity fluctuation, noise and higher reliability and tracking accuracy in servo applications
  • Automatic fault recovery from a phase winding failure and/or phase voltage/current saturation
  • Capability to provide critical information regarding motor health to master system (M2M, machine-to-machine)
  • Easy-to-use application programming interface (API) for quick and safe operation including multiple debug modes for power stage, transducer and system protection verification for early bug detection

BENEFIT #1: 20% LOSSES REDUCTION BY TORQUE RIPPLE SUPPRESSION (source)

BENEFIT #2: ROBUST TO INVERTER/MOTOR PHASE FAULTS (source)

SCHEMATIC - (c) Copyright Canadian Space Agency 2014.

 

DOCUMENTATION

APPLICATIONS

CANADIAN SPACE AGENCY WEBSITE

SOFTWARE CERTIFICATION

VIDEO: To know more, check this great testimonial from John Maris, President and Founder at Marinvent.

RELATED NEWS

LISTEN TO ALIZEM'S DR. MARC PERRON ON THIS IP AT TAKE FIVE WITH WARREN

 

NEXT STEP

Do you design new or existing motor drive products where this IP could be beneficial ? Please contact us to book a meeting or download the FREE package of documents below.