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Adaptive hysteresis band current control for transformerless single-phase PV inverters

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10.1109/IECON.2009.5414770
 
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hdl:2117/10704

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Vázquez Guzmán, Gerardo
Rodríguez Cortés, PedroMés informacióMés informacióMés informació
Ordoñez, Rafael
Kerekes, Tamas
Teodorescu, Remus
Document typeConference report
Defense date2009
Rights accessOpen Access
Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
Abstract
Current control based on hysteresis algorithms are widely used in different applications, such as motion control, active filtering or active/reactive power delivery control in distributed generation systems. The hysteresis current control provides to the system a fast and robust dynamic response, and requires a simple implementation in standard digital signal platforms. On the other hand, the main drawback of classical hysteresis current control lies in the fact that the switching frequency is variable, as the hysteresis band is fixed. In this paper a variable band hysteresis control algorithm will be presented. As it will be shown, this variable band permits overcoming the aforementioned problem giving rise to an almost constant switching frequency. The performance of this algorithm, together with classical hysteresis controls and proportional resonant (PR) controllers, has been evaluated in three different single-phase PV inverter topologies, by means of simulations performed with PSIM. In addition, the behavior of the thermal losses when using each control structure in such converters has been studied as well.
CitationVazquez, G. [et al.]. Adaptive hysteresis band current control for transformerless single-phase PV inverters. A: IEEE International Symposium on Industrial Electronics. "IECON2009". Porto: 2009, p. 173-177. 
URIhttp://hdl.handle.net/2117/10704
DOI10.1109/IECON.2009.5414770
ISBN978-1-4244-4650-6
Publisher versionhttp://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5414770
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  • Departament d'Enginyeria Elèctrica - Ponències/Comunicacions de congressos [613]
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