Research on the inspection and monitoring system of power equipment based on cloud storage platform

Meng, Xianglin

doi:10.1109/ccdc.2018.8407377

Cited by 3 publications

(1 citation statement)

References 2 publications

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“…Because there is a spectral leakage phenomenon, the current noise of the high-speed carrier communication signal with non-fixed frequencies will leak to the frequency spectrum of the high-speed carrier communication signal with a fixed frequency, affecting the current signal extraction of the high-speed carrier communication signal with a fixed frequency. Selecting an appropriate window function can suppress spectrum leakage, such as by adopting the Blackman Window with the maximum side lobe suppression ratio [10] .…”

Section: Extraction Algorithm Of the High-speed Carrier Communication...mentioning

confidence: 99%

A Physical Topology Identification Method for Low-voltage Distribution Areas Meter Box

Wang¹,

Mao²,

Luo³

et al. 2023

J. Phys.: Conf. Ser.

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This paper put forward a method on the premise of not changing the hardware circuit of the HPLC communication unit of the online electrical meter. In the HPLC communication unit of the electrical meter, the electrical meter address is modulated to the electric-power line through a high-speed carrier signal by the method of on-off keying. In the intelligent molded case circuit breaker of the meter box, after the new-type instrument transformer is used to extract the signal, the optimization algorithm is adopted to extract the electrical meter address to achieve physical topology identification of the meter box, forming a physical topographic map of low-voltage distribution area at the meter box level, which has the characteristics of low cost and high identification rate. This method is particularly suitable for the situation where HPLC communication units have been used in large quantities. Based on the current meter box operating method, it can effectively achieve the physical topology identification for the low-voltage distribution area, improve the physical topology identification rate for the meter box and reduce the identification cost.

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Section: Extraction Algorithm Of the High-speed Carrier Communication...mentioning

confidence: 99%