A DSP Based Torque Meter for Induction Motors

Fabiano Valias De Carvalho, João Onofre Pereira Pinto, Luiz Eduardo Borges Da Silva, Bimal K. Bose, Germano Lambert Torres

Research output: Contribution to conferencePaperpeer-review

20 Scopus citations

Abstract

This work describes the steps to implement a torque meter for three phases induction motors, based on stator voltage and machine current measurement. The strategy is based on stator flux synthesis through Programmable Cascaded Low-Pass Filters (PCLPF). The electromagnetic torque estimation is processed by a DSP microprocessor in real time. The PCLPF filter outlines the problem of necessary numeric integration to calculate the stator flux starting from the samples of stator voltage and current. The Programmable Cascaded Low-Pass Filter is implemented using Recurrent Neural Network (RNN-PCLPF) trained by an algorithm based on Kalman filter. The DSP based implementation of a torque meter results in an equipment with the same precision when comparing with torque meters based on torsion of metallic axes, with known elastic constant and strain gauges.

Original languageEnglish
Pages414-418
Number of pages5
DOIs
StatePublished - 2003
Externally publishedYes
EventThe 29th Annual Conference of the IEEE Industrial Electronics Society - Roanoke, VA, United States
Duration: Nov 2 2003Nov 6 2003

Conference

ConferenceThe 29th Annual Conference of the IEEE Industrial Electronics Society
Country/TerritoryUnited States
CityRoanoke, VA
Period11/2/0311/6/03

Keywords

  • DSP application
  • Kalman filter
  • Programmable cascade low-pass filter
  • Recurrent neural network
  • Torque estimation

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