A monitoring and predictive analysis system for power grid operation events

A power grid operation and analysis system technology, applied in the direction of information technology support system, forecasting, data processing applications, etc., can solve the problem that the prediction ability needs to be improved, and the self-learning of smart grid data is not considered, so as to improve the accuracy and speed Effect

Inactive Publication Date: 2020-05-05
STATE GRID CORP OF CHINA +2
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Problems solved by technology

There are still some methods like this at home and abroad, but these methods do not consider the self-learning of smart grid data in the era of big data, and their predictive ability needs to be improved

Method used

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  • A monitoring and predictive analysis system for power grid operation events
  • A monitoring and predictive analysis system for power grid operation events
  • A monitoring and predictive analysis system for power grid operation events

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specific Embodiment

[0059] The specific example is as follows: Node x 1 , x 2 are the temperature and humidity data around transformer 1, respectively, x 3 , x 4 is the temperature and humidity data around transformer 2, h 1 is the operating state data of transformer 1, h 2 is the operating state data of transformer 2, y 1 It is the data of freezing disaster accident status. From the data in the established self-learning expert database, x 1 , x 2 to h 2 The connection weight is 0, that is, Similarly Since the monitoring signal data in the power grid constitutes big data, the amount of information is very huge. For the convenience of discussion, it can be assumed that the connection weights of other input signals to transformer 1 and transformer 2 are also 0.

[0060] When the ambient temperature data of transformer 1 When the humidity changes around the transformer 1 have little effect on the transformer, according to formula (5), it can be obtained is very small, the threshold o...

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Abstract

The invention belongs to the technical field of dispatching automation of power systems, and aiming at the problem of a pre-warning difficulty for a power network failure caused by big data of a smart power network, provides a power network operation event-oriented monitoring, pre-judging and analyzing system on the basis of a big data technology. The system comprises a power network data analysis part and an expert database part, wherein the expert database part takes charge of storing various data in an equipment failure or a power network event; and the power network data analysis part analyzes the big data. The system provided by the invention has the beneficial effects that (1) a self-learning expert database for the smart power network is created under the age of big data to play a key role in monitoring and pre-warning power equipment and power network accidents; the monitoring and pre-judging accuracy and speed are greatly improved; and the system assists a power enterprise in relatively well finishing the monitoring and pre-judging work, and has positive practical significance; and (2) the influence on an equipment operation condition and a power network event state caused by monitoring quantities is comprehensively and accurately considered by timely updating weights and thresholds of various nodes; a timely pre-warning function is achieved; and the system has practical application value in research of the smart power network in the future.

Description

technical field [0001] The invention belongs to the technical field of power system dispatching automation, and provides a monitoring, prediction and analysis system for power grid operation events based on the big data technology, aiming at the difficulty of early warning of power grid faults brought by the big data of the smart grid. Background technique [0002] With the increasingly severe global energy problem, smart grid has become a hot research topic in various countries. Smart grid is the integration of modern advanced Internet of Things technology, network technology, sensor measurement technology, communication technology, computing technology, automation technology and intelligent control technology into the current physical power grid to form a new smart grid. The smart grid has established a panoramic perception network that completely covers the power generation, transmission, substation, distribution, power consumption and dispatching of the power system. The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q50/06
CPCY04S10/50
Inventor 于磊曹宇谢旭武江王双王刚孟玲梅刘慧勇韩宇龙徐家慧王丹米春泉金言何涛路剑敏
Owner STATE GRID CORP OF CHINA
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