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Open AccessArticle

A New Predictive Control Strategy for Multilevel Current-Source Inverter Grid-Connected

1
Departamento de Ingeniería Electrónica, Instituto Tecnológico de Celaya, No. 600, Antonio García Cubas y Av. Tecnológico, Celaya, Guanajuato C.P. 38010, Mexico
2
División de Investigación y Posgrado, Facultad de Ingeniería, Universidad Autónoma de Querétaro (UAQ), Cerro de las Campanas, S/N, Col. Las Campanas, Querétaro C.P. 76010, Mexico
*
Author to whom correspondence should be addressed.
Electronics 2019, 8(8), 902; https://doi.org/10.3390/electronics8080902
Received: 25 July 2019 / Revised: 11 August 2019 / Accepted: 12 August 2019 / Published: 15 August 2019
(This article belongs to the Section Power Electronics)
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Abstract

The DC/AC converters—commonly called inverters—transform the DC into AC and are classified as Voltage-Source Inverters (VSIs) or Current-Source Inverters (CSIs). A variant of the CSIs are the Multilevel Current-Source Inverters (MCSIs). In this paper, a new predictive control strategy for an MCSI with multiple inputs and grid-connected is proposed. The control technique uses the advantages of the Sliding Mode Control (SMC) for the balance of current in the input and Predictive Control (PC) to obtain a suitable grid current, since it separates both functions. The calculations are based on conventional Kirchhoff’s Voltage Law (KVL) and knowledge of the mathematical model of the system is not required. Generally, traditional MCSIs use large input inductors (100–1000 mH). In this paper, it is achieved a reduction in size of the input inductors. Simulation results are shown to validate the proposed control. View Full-Text
Keywords: current-source; DC/AC converter; multilevel inverter; grid-connected; predictive control current-source; DC/AC converter; multilevel inverter; grid-connected; predictive control
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Estévez-Bén, A.A.; López Tapia, H.J.C.; Carrillo-Serrano, R.V.; Rodríguez-Reséndiz, J.; Vázquez Nava, N. A New Predictive Control Strategy for Multilevel Current-Source Inverter Grid-Connected. Electronics 2019, 8, 902.

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