Multi-modal oscillation online monitoring and early warning system based on edge calculation

Abstract

The invention relates to a multi-modal oscillation online monitoring and early warning system based on edge calculation, the system comprises an acquisition layer, an edge node layer and a central layer, and the acquisition layer comprises an AD acquisition conversion module and a multi-modal synchronous phasor calculation module; the edge node layer extracts modal information and synchronous phasor data obtained by the acquisition layer, and extracts the characteristics of each modal oscillation by analyzing the multi-modal synchronous phasor data; and the central layer analyzes the oscillation source and the propagation path according to the analysis result of the edge node layer in combination with the power network topology structure, thereby realizing multi-modal oscillation early warning. The system provided by the invention realizes a new electric power automation scheduling system architecture, and breaks through a framework in which all original acquired data is uploaded to ascheduling center and is managed and analyzed by the scheduling center system in a unified manner. According to the invention, the basic analysis is localized and real-time, the data problem caused bythe transmission problem is avoided while the calculation load of the dispatching center is reduced, and the accuracy and real-time performance of the analysis are further improved.

Description

technical field [0001] The invention belongs to the technical field of power system automation, and in particular relates to an edge computing-based multi-mode oscillation online monitoring and early warning system. Background technique [0002] Originating from the media field, edge computing refers to an open platform that integrates network, computing, storage, and application core capabilities on the side close to the source of objects or data, and provides the nearest end services. Its applications are launched on the edge side to generate faster network service responses and meet the basic needs of the industry in terms of real-time business, application intelligence, security and privacy protection. Edge computing sits between the physical entity and the industrial connection, or on top of the physical entity. With cloud computing, historical data from edge computing can still be accessed. [0003] Supersynchronous resonance, any form of three-phase unbalanced curre...

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Problems solved by technology

The sending of a large amount of operating data not only puts a huge pressure on the existing communication network, but also

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