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Microgrid with multiple grid-connected inverters produces abundant harmonic voltage and current components. Such harmonics make it difficult to extract fundamental component and other useful components. Accurate yet time-efficient algorithm is in high demand to solve this problem not only for producing accurate reference signals but also for fulfilling effective control and event detection in microgrid...
The fault characteristic of inverter interfaced DG is very different from that of synchronous rotating generators. Traditional protection methods based on large fault current are no longer applicable to inverter-only supplied microgrid. This paper analyzes the fault behaviour of inverter based microgrid, and proposes an adaptive fault current protection algorithm for this type of microgrid. According...
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