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The coexistence of ac and dc subgrids in a hybrid microgrid is likely given that modern distributed sources can either be ac or dc. Linking these subgrids is a power converter, whose topology should preferably be not too unconventional. This is to avoid unnecessary compromises to reliability, simplicity, and industry relevance of the converter. The desired operating features of the hybrid microgrid...
This paper presents the concept of using a new tapped-inductor (TL) Z-source impedance network for implementing Z-source inverters. By replacing the original two inductors found in the classical impedance network with two modified 2-terminal TL cells, output voltage range of the new inverter can widely be expanded. This means a larger gain, which in principle, can be adjusted freely by varying the...
In this paper, a new transient maximum power point tracking (TMPPT) method is proposed for single-stage grid-tied inverters. This method is different from the conventional MPPT schemes since it is based on the maximum power point (MPP) detection during transient process introduced intentionally according to the irradiance change but not based on continuous perturbation. The generated transient performance...
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