Distributed computing based low frequency oscillation identification device

Abstract

The invention discloses a distributed computing based low frequency oscillation identification device. The device includes a sampling unit, an algorithm software unit, a data management unit, an implementation device system management unit and a communication system; the sampling unit collects original data and performs pretreatment on sampling data; the algorithm software unit performs computingand analyzing on the sampling data; the data management unit performs data interaction on the signal feature quantity provided by the algorithm software unit with a data concentrator; the implementation device system management unit performs file management, network communication and man-computer interaction; and the communication system performs unified modeling on data and provides data interaction standards. The advantages of the system are that, based on the collected data resources, and the distributed computing and analyzing of low frequency oscillation on the basis of multi-signal Pronyalgorithms, master station computing pressure and software and hardware overhead can be mitigated, and faster and more accurate real-time identification on the low frequency oscillation in power systems can be realized.

Description

technical field [0001] The invention relates to a low-frequency oscillation identification device, in particular to a distributed computing low-frequency oscillation identification device based on a multi-signal Prony algorithm. Background technique [0002] Power system low-frequency oscillation refers to the phenomenon of spontaneous power fluctuations that occur on tie lines with a frequency between 0.1 Hz and 2.5 Hz. The reason for the formation of low-frequency oscillation is very complicated, and it involves a wide range, which can easily lead to the out-of-synchronization of the system, so it has always attracted the attention of researchers. The low-frequency oscillation will last for a period of time after the occurrence, or the attenuation disappears, or the oscillation restarts after attenuation, and even continues to aggravate and induce successive accidents, often causing large-scale power outages and seriously affecting the safe and stable operation of the powe...

AI Technical Summary

Problems solved by technology

However, with the expansion of the geographical distribution of the power grid and the increasingly complex network structure, it is becoming more difficult for the master station system of the wide-area measurement system to analyze the operation status of the power grid and provide safety warnings. Facing a large amount of data, the calculation pressure on the master station side continues to increase. Often the calculation accuracy cannot be guaranteed

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