Active Injection for Single-ended Protection in DC Grid Using Hybrid MMC
IEEE Transactions on Power Delivery(2021)
Abstract
To identify the fault area more accurately and improve the reliability and sensitivity of the traditional protection principle on DC lines, an active injection for single-ended protection in the DC grid is proposed. Considering the influence of fault impedance, the effect of frequency-dependent parameters, numerical differential error, and the strength of DC boundary, high controllability of hybri...
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Key words
Circuit faults,Impedance,Band-pass filters,Frequency conversion,Fault diagnosis,IIR filters
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