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

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 wi...

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Bibliographic Details
Published in:Electronics (Basel) 2019-08, Vol.8 (8), p.902
Main Authors: Estévez-Bén, Adyr A., López Tapia, Héctor Juan Carlos, Carrillo-Serrano, Roberto Valentín, Rodríguez-Reséndiz, Juvenal, Vázquez Nava, Nimrod
Format: Article
Language:English
Subjects:
Alternative energy
Current sources
Electric converters
Electric potential
Energy industry
Inductors
Inverters
Mathematical models
Predictive control
Renewable resources
Sliding mode control
Voltage
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Summary: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.
ISSN:2079-9292
2079-9292
DOI:10.3390/electronics8080902