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Modelado e implementación de un manejador eléctrico para un motor de inducción trifásico

Translated title of the contribution: A three-phase induction motor electric driver – modeling and implementation

Research output: Contribution to journalArticlepeer-review

Abstract

This paper gives a detailed description of a non-
conventional speed-variation linear model in-
tended for a conventional three-phase induction
motor. The proposed architecture consists in a
single-phase unit-power-factor tap (PFC) fo-
llowed by three-phase inverter, which feeds the
motor by using the scalar-control technique. The
whole system is digitally-controlled by a Digital
Signal Processor (DSP). In order to obtain the
model, non-conventional use of the average ope-
rator is suggested, which involves a calculation
time span that depends on the target dynamics.
This type of analysis simplifies the development
of lossless models in terms of model precision.
The project was divided into three methodolo-
gical stages. Stage one established target dyna-
mics for each of the electric-driver parts as well
as providing linear models by means of a well-
defined stage-specific mobile average operator.
Stage two served to validate the models through
simulation-based experiments. Finally, contro-
llers were designed and the driver was imple-
mented so as to validate the design process ex-
perimentally. The system that was implementing
through this modeling process corresponds to a
speed-variation unit for a 0,5-HP reduced-vol-
tage (22V) induction motor. The implemented
system was characterized in terms of the total
power-factor correction, a speed regulation level
lower than 5 %, and power-processing-unit effi-
ciency (PFC-Inverter) of 82 %.
Translated title of the contributionA three-phase induction motor electric driver – modeling and implementation
Original languageSpanish
Pages (from-to)94-109
Number of pages16
JournalTecnura
Volume18
Issue number39
DOIs
StatePublished - 2014

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