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This paper presents the performance analysis of filter sensing board for extracting ac ripple information to estimate the battery impedance for the sinusoidal ripple current charging technique. The charging ac ripple content is extracted from the battery voltage and current by filtering the dc component using an op-amp filter circuit while producing a 90° phase angle in order to transform the a-p...
This paper presents a review of secondary control strategies for DC microgrids (DC MGs) and compares centralized, decentralized and distributed control approaches. The conventional droop control provides proper power sharing among converters with the increment in droop gain. However, this droop gain is inversely proportional to the output current consequently leading to current sharing inaccuracy...
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