Development of a novel PMU device for distribution network lines

作者:Xie, Xiaolei; Liu, Yadong*; Sun, Peng; Luo, Lingen; Sheng, Gehao; Jiang, Xiuchen
来源:Automation of Electric Power Systems, 2016, 40(12): 15-20 and 52.
DOI:10.7500/AEPS20160311010

摘要

Miniaturization, low cost and easy installation with power on are the development directions of phasor measurement unit (PMU) for distribution network lines. A novel distributed PMU device designed for the wide-area monitoring system of distribution network obtains energy from the line through the high-density inductive power taking module. The device measures current and voltage waveforms by printed circuit board (PCB) Rogowski coils and spatial capacitive voltage divider, respectively, and achieves voltage and current collection in the whole network by distributed synchronous sampling. The device proposed provides a new solution for the development of novel PMU in the distribution network lines. At present, prototypes of PMU have been tested online and the monitored data have been sent back. All modules are found to work normally and stably and measurement results to accurately reflect the line current and voltage.

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