On FPGA Implementation of a Continuous-Discrete Time Observer for Sensorless Induction Machine using Simulink HDL Coder

This paper deals with the design of a continuousdiscrete time high gain observer (CDHGO) for sensorless control of an induction machine (IM). Only two weakly sampled stator current measurements are used to achieve a real-time estimation of the rotor flux, the mechanical speed and the load torque. Th...

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Bibliographic Details
Published in:International journal of advanced computer science & applications Vol. 8; no. 6; pp. 412 - 417
Main Authors: Besbes, Moez, Hadj, Salim, M’Sahli, Faouzi, Farza, Monther
Format: Journal Article
Language:English
Published: West Yorkshire Science and Information (SAI) Organization Limited 01.01.2017
The Science and Information Organization
Subjects:
Algorithms
Automatic
Computer engineering
Computer science
Control algorithms
Design
Electrical engineering
Engineering Sciences
Feasibility studies
Field programmable gate arrays
High gain
Induction motors
Kalman filters
Software
Waveforms
High gain observer
FPGA
HDL coder
ISSN:2158-107X, 2156-5570
Online Access:Get full text
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Summary:This paper deals with the design of a continuousdiscrete time high gain observer (CDHGO) for sensorless control of an induction machine (IM). Only two weakly sampled stator current measurements are used to achieve a real-time estimation of the rotor flux, the mechanical speed and the load torque. The feasibility of implementing our algorithm on the FPGA target is discussed in term of the best word format choice for internal variables and in term of making up for problems attached with complex bloc diagram VHDL conversion. Before an eventual implementation on the Virtex FPGA board, a validation of the proposed observer is performed through the ModelSim software where we show that the waveforms of estimates bring closer the true ones.
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ISSN:2158-107X
2156-5570
DOI:10.14569/IJACSA.2017.080655