Faulty Feeder Detection and Fault Self-Extinguishing by Adaptive Petersen Coil Control
Power Delivery, IEEE Transactions（2011）
Abstract
The characteristic of the single-phase earth fault in the Peterse coil grounded distribution network is discussed in this paper. It is disclosed that only the derivative of the zero-sequence current of the faulty feeder changes with the controllable inductance of the Petersen coil, while the derivative of the zero-sequence current of the sound feeder is kept invariable. Therefore, a novel faulty feeder selection criterion is proposed. A variety of simulation tests is carried out. The exactness and sensitivity of the proposed scheme are verified by simulation test results.
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Key words
coils,resonant grounding,power distribution faults,faulty feeder detection,adaptive petersen coil,self-extinguish,power distribution protection,maximum current derivative,sound feeder,residual current,earthing,adaptive petersen coil control,fault location,zero-sequence current,fault self-extinguishing,coil grounded distribution network,adaptive control,voltage,capacitance,inductance,earth,indexing terms,fault detection,resonance,zero sequence current
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