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Novel high step‐up DC–DC converter with increased voltage gain per devices and continuous input current suitable for DC microgrid applications
Author(s) -
Varesi Kazem,
Hassanpour Naser,
Saeidabadi Saeid
Publication year - 2020
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.2804
Subject(s) - converters , topology (electrical circuits) , microgrid , inductor , network topology , voltage , diode , power (physics) , electronic engineering , steady state (chemistry) , computer science , engineering , control theory (sociology) , electrical engineering , physics , control (management) , chemistry , quantum mechanics , artificial intelligence , operating system
Summary This paper suggests a nonisolated noncoupled inductor‐based topology for direct current (DC)–DC converters for DC microgrids. The proposed configuration profits from advantages like high step‐up capability, continuous input current, simple structure, reduced normalized standing voltage (NSV) on switches/diodes, large gain per devices, common ground point between source‐load, and maximum power point tracking (MPPT) capability. Both the switches ( T 1 , T 2 ) are turned on/off simultaneously, which minimizes the number of operational modes and simplifies the control strategy. These properties lead to a more compact, less expensive, and lighter topology. The operational modes and steady‐state analysis as well as design considerations have been presented in detail. According to comparative analysis, the voltage conversion ratio per number of devices in suggested topology is higher than that of other similar topologies addressed in literature. The simulation results extracted from PSCAD/EMTDC software and the experimental outcomes obtained from laboratory‐scale prototype confirm the effectiveness and correct performance of proposed topology.

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