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Motor Control

Zetacon’s CogniSim Motor Control Technology

Zetacon’s advanced motor control technology is based upon a revolutionary control architecture and methodology. This control technology, trademarked as CogniSim, is a true breakthrough in providing excellent sensorless control for different classes of motors, independent of the power circuit used. CogniSim is exceptionally flexible and adaptable, an attribute that delivers performance and value in many important ways.

Capabilities and Benefits:

  •  Advanced Sensorless Control delivers full direct torque control down to zero speed, and very fast rotating re-starts…built on fundamental machine theory and incorporating a unique predictive engine

  • Fundamentally the same control system works for:

    •  induction motors

    •  permanent magnet motors

    • synchronous reluctance motors

Single architecture and master algorithm, adjusted for embedded mathematical motor models

  • Capable of controlling a number of different motor classes with the same control engine... capability depends upon performance criteria chosen, available processing speed and power circuit capability. The performance capability will expand further as processor speeds increase since CogniSim is fully adaptable

  • Operates at meaningfully lower switching frequencies than most traditional control systems – lower losses; lower EMI…no set modulation approach; only executes a switch change if doing so leads to better performance

  • Minimizes design obsolescence, accelerates time-to-market for new or upgraded motor control products… readily accepts and adapts to changes/evolutions in the electronic devices/components used in the control system or power circuit

  • Single controller can be structured so as to deliver a high performance motor drive while effectively managing typical related power quality issues

MOTOR CONTROL TECHNOLOGY - BENEFITS SUMMARY

  •  Single architecture, master algorithm, broad applicability with only modest adjustments
  • Controls a wide class of motors – induction, permanent magnet, synchronous reluctance, etc.
  • Operational excellence regardless of power rating (fractional horsepower to megawatts)
  •  Sensorless operation, with torque directly controlled on a pulse-by-pulse basis
  • Very fast processing rate (~5us) enables superior sensorless control at low and zero speed
  • Very low switching frequency enables reductions in associated heat sinks, EMI filters, etc
  •  Able to trade-off performance to meet different and varying design requirements and goals
  •  Able to incorporate harmonic mitigation and other power management solutions with motor control
  • Ability to import new technology improvements easily, hence highly sustainable
  • Enables and facilitates compressed design/development timelines for new applications
  • Enables dual-use and multiple-use control capability

 

The CogniSim motor control technology is available to you on two distinct bases:

1)      Technology Licensing: The full range of the CogniSim control technology is available on a direct licensing basis. See Licensing

2)      Purchase of our MC2M module: Our first in a series of MC2M modules incorporating CogniSim for the sensorless control of induction motors will be available by Q3 2004, in both an evaluation and a production version. See MC2M -Multi-Chip Control Module