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Current travelling wave based single-ended fault location method needs to recognize the travelling waves propagating from the fault direction as well as the travelling wave reflected from the fault point or remote-end bus. This paper firstly compares the current travelling waves of the fault line and the longest health line connected to the local bus based on dyadic wavelet transform to obtain the...
Identification of the travelling wave reflected from the fault point or the remote-end bus is the core of travelling wave based single-end fault location method. Because the polarity of the travelling wave reflected from the fault point or the remote-end bus is affected by the bus configuration at both ends of the fault line, it is difficult to identify whether the travelling wave is reflected from...
This paper proposes a new fault location algorithm based on two-phase voltage and current measured at the power system side for unbalanced power distribution systems. Taking single-phase-to-ground fault as an example, the paper elaborates the algorithm for feeders with and without laterals. A simple feeder in power distribution system and IEEE-13 node power distribution system are used as test systems...
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