Abstract

REYES-SEVERIANO, Yesenia; AGUAYO-ALQUICIRA, Jesús; LEON-ALDACO, Susana Estefany De  and  CARRILLO-SANTOS, Luis Mauricio. Comparative analysis of PD-PWM technique in the set: Multilevel Inverter-Induction motor. Ing. invest. y tecnol. [online]. 2020, vol.21, n.1, e00007.  Epub Aug 03, 2020. ISSN 2594-0732.  https://doi.org/10.22201/fi.25940732e.2020.21n1.007.

Currently, induction motors are widely used in industry because have a high potential for efficiency improvement. Therefore, a topic of interest to the industry is to reduce the energy consumption of induction motors, as they represent almost half of the total electrical energy consumption in the world. The energy consumption of electric motors can be reduced by using motors that are more efficient and by using power converters to feed the motors, thereby enabling accurate control according to the load. The function of the power converter is to modify the intrinsic characteristics of the induction motor (speed and torque). There are different topologies of the power converter commonly called inverter for induction motors. An inverter requires a modulation strategy for its operation, there are several modulation strategies that are used in the induction converter-motor assembly. This paper presents the comparative analysis of the influence of the phase disposition modulation (PD-PWM) strategy with different modulation indices, on parameters related to the output signal of a cascaded multilevel inverter (seven-levels) as well as on the nominal working conditions of a three-phase induction motor.

Keywords : Multilevel inverter; pulse width modulation; total harmonic distortion; induction motor; power converter.

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