作者:
MA Mirzai，AA Afzalian
关键词:
electric current measurement ； fault location ； power distribution faults ； substations ； voltage measurement ； current measurements ； fault locator system ； feeder architecture ； load variations ； radial distribution feeders
摘要:
This paper presents a novel fault-locator system for radial distribution feeders based on the feeder architecture and voltage and current measurements at a subtransmission substation (63/20 kV). The proposed algorithm determines the fault location precisely by considering the variable characteristic of the load, unbalanced condition, and unsymmetrical nature of distribution feeders. Load variations affect the accuracy of fault-locator systems significantly. Real-time load estimation is implemented to reduce the differences between the calculated fault location and the actual fault location. In addition, self-supervisory characteristics are added to the system to increase the accuracy of the collected data. Actual test results demonstrate the effectiveness of the system in practical applications.
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