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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
International Journal of Circuit Theory and Applications ( IF 1.554 ) Pub Date : 2020-05-11 , DOI: 10.1002/cta.2804
Kazem Varesi; Naser Hassanpour; Saeid Saeidabadi

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 (T1, T2) 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.
更新日期:2020-05-11

 

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