Direct Torque Control of permanent magnet motors using a single current sensor

This paper describes a speed sensorless permanent magnet synchronous motor (PMSM) direct torque control (DTC) using single DC-link voltage and current sensors. The phase currents are estimated in a two-stage process: prediction and adjustment. Prediction is based on the dynamic motor model, whereas...

Full description

Saved in:
Bibliographic Details
Main Authors: Peralta-Sanchez, E., Al-rifai, F., Schofield, N.
Format: Conference Proceeding
Language:English
Subjects:
Current measurement
DTC
Inverters
Magnetic sensors
Permanent magnet motors
Phase estimation
PMSM
Predictive models
Sensor phenomena and characterization
sensorless control
single current sensor
Switches
Synchronous motors
Torque control
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper describes a speed sensorless permanent magnet synchronous motor (PMSM) direct torque control (DTC) using single DC-link voltage and current sensors. The phase currents are estimated in a two-stage process: prediction and adjustment. Prediction is based on the dynamic motor model, whereas adjustment relies on the inverter switches states and the measured DC-link current. This system is then incorporated into a speed sensorless DTC scheme. The rotor speed is estimated from the instantaneous stator flux linkage position and load angle value.
DOI:10.1109/IEMDC.2009.5075188