DSP-Based Simplified Space-Vector PWM for a Three-Level VSI with Experimental Validation

Jose Dario Betanzos Ramirez; Jaime Jose Rodriguez Rivas; Edgar Peralta-Sanchez

DSP-Based Simplified Space-Vector PWM for a Three-Level VSI with Experimental Validation

Jose Dario Betanzos Ramirez

Jaime Jose Rodriguez Rivas

Edgar Peralta-Sanchez

Vol. 12, No. 2, pp. 285-293, Mar. 2012

10.6113/JPE.2012.12.2.285

Inverter hardware

Space-vector PWM

Three-level inverter

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Abstract

Multilevel inverters have gained attention in high-power applications due to their numerous advantages in comparison with conventional two-level inverters. In this paper a simplified Space-Vector Modulation (SVM) algorithm for a three-level Neutral-Point Clamped (NPC) inverter is implemented on a Freescale® DSP56F8037. The algorithm is based on a simplification of the space-vector diagram for a three-level inverter so that it can be used with a two-level inverter. Once the simplification has been achieved, calculation of the dwell times and the switching sequences are carried out in the same way as for the two-level SVM method. Details of the hardware design are included. Experimental results are analyzed to validate the performance of the simplified algorithm.

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Cite this article

[IEEE Style]

J. D. B. Ramirez, J. J. R. Rivas, E. Peralta-Sanchez, "DSP-Based Simplified Space-Vector PWM for a Three-Level VSI with Experimental Validation," Journal of Power Electronics, vol. 12, no. 2, pp. 285-293, 2012. DOI: 10.6113/JPE.2012.12.2.285.

[ACM Style]

Jose Dario Betanzos Ramirez, Jaime Jose Rodriguez Rivas, and Edgar Peralta-Sanchez. 2012. DSP-Based Simplified Space-Vector PWM for a Three-Level VSI with Experimental Validation. Journal of Power Electronics, 12, 2, (2012), 285-293. DOI: 10.6113/JPE.2012.12.2.285.