RDDSCSHSSR: Sensorless High-Speed SR Motor Drive for Vacuum Cleaners Reference Design using an MC56F8013

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RDDSCSHSSR: Sensorless High-Speed SR Motor Drive for Vacuum Cleaners Reference Design using an MC56F8013

RDDSCSHSSR: Sensorless High-Speed SR Motor Drive for Vacuum Cleaners Reference Design using an MC56F8013

Overview

The Sensorless High-Speed SR Motor Control Reference Design based on the NXP® low-cost MC56F8013 digital signal controller (DSC) deals with a 2-phase switch reluctance (SR) motor sensorless drive for vacuum cleaners and other air movement applications.

  • The application is a speed-open loop SR drive without any position or speed sensor needs
  • Uses a sensorless control method based on current peak detection and a patented start-up algorithm (Patent No. US6448736 B1)
  • The control technique allows the SR motor more than 100 000 RPM
  • The application is primarily for vacuum cleaners, although it can be used for any application with a high-speed drive (50 000 RPM)

Features

  • High-speed 2-phase SR motor sensorless control based on a current peak detection
  • Designed for vacuum cleaner applications
  • Capable of running SR motors at more than 100.000 RPM (tested with SR motor designed for 60 000 RPM)
  • Single direction rotation enabled by asymmetric of 2-phase SR motor
  • Speed open loop
  • Start-up from any position using alignment and patented algorithm (Patent No. US6448736 B1)
  • Start-up time and maximum speed depends on SR motor parameters
  • Manual interface and FreeMASTER control page for monitoring, control and tuning

Block Diagram

2443_RDDSCSHSSR_BD.gif

Design Resources

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Version history
Last update:
‎08-11-2020 08:13 PM
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