Open AccessHysteresis control for a grid connected dual-buck inverter
Author(s) -
Mario Andrés Bolaños-Navarrete,
Juan David BastidasRodríguez,
Gustavo Osorio
Publication year - 2020
Publication title -
revista uis ingenierías
Language(s) - English
Resource type - Journals
eISSN - 2145-8456
pISSN - 1657-4583
DOI - 10.18273/revuin.v20n1-2021001
Subject(s) - inverter , control theory (sociology) , inductor , dual (grammatical number) , computer science , grid , controller (irrigation) , buck converter , power (physics) , voltage , topology (electrical circuits) , electronic engineering , control (management) , electrical engineering , engineering , mathematics , physics , art , agronomy , geometry , literature , quantum mechanics , artificial intelligence , biology
Single-phase inverters are widely used in different renewable energy applications. Although the full-bridge inverter istypically used, dual-buck inverters provide an important advantage, since they eliminate the shoot-through problems. However, solutions proposed in the literature require additional inductors, use linear controllersdesigned around an operation point, or cannot be used in grid-connected applications. This paper presents a hysteresis current control of a single-phase dual-buck full-bridge inverter for grid-connected active power injection. Includes the dynamical modelin state variables, as well as analytical conditions to guarantee the evolution of the error dynamics in a set with boundaries defined by the designer. Moreover, the paper provides guidelines for the design of the dead band required for the transitions between the positive and negative semi-cycles (and vice-versa) of the grid voltage. Finally, simulation results validate the main features of the controller as well as the design of the dead band