RFOC implementation in four‐switch three phase inverter‐fed induction motor drive

Abstract

Purpose

This paper seeks to discuss the implementation of the rotor flux oriented control (RFOC) in a four‐switch three‐phase inverter (FSTPI)‐fed induction motor drive.

Design/methodology/approach

The implementation is achieved considering a current regulation of the FSTPI. Such a regulation is done thanks to bang‐bang regulators. As far as the FSTPI is fed by a battery pack, the paper considers an electrical equivalent circuit of such a power supply.

Findings

Simulation works, carried out considering the case of an ideal model of the battery pack and the case where the electrical equivalent circuit of the battery pack is taken into account, have shown that the drive dynamic performance are practically the same. Furthermore, and in order to highlight the performance of the induction motor fed by a FSTPI, these are compared with those obtained with the induction motor fed by a conventional six‐switch three‐phase inverter (SSTPI), considering both models of the battery pack. It has been found that the drive offers almost the same dynamic and steady‐state performance.

Research limitations/implications

The work should be extended by an experimental validation of the simulation results.

Practical implications

The established results open up crucial benefits from the point of view of cost‐effectiveness and volume‐compactness improvements of induction motor drives especially in large‐scale industries such as the automotive one where electric and hybrid propulsion systems are currently regarded as an interesting alternative to substitute or to assist the thermal propulsion systems.

Originality/value

The implementation of the RFOC in FSTPI‐fed induction motor drives is feasible and exhibits almost the same performance as those obtained by conventional SSTPI‐fed induction motor drives under the same control strategies.

Citation

Guermazi, A., El Badsi, B., Masmoudi, M. and Masmoudi, A. (2007), "RFOC implementation in four‐switch three phase inverter‐fed induction motor drive", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 26 No. 1, pp. 167-182. https://doi.org/10.1108/03321640710714047