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Online voltage drop source identification system and method

A technology of voltage drop and identification method, which is applied in the direction of neural learning method, biological neural network model, fault location, etc., can solve the problem that the power company has no application, and achieve the effect of improving the identification and calculation speed

Inactive Publication Date: 2014-11-05
STATE GRID CORP OF CHINA +1
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the problems existing in the prior art that there is no research on the location of the voltage drop source in China, and there is no application in the power company, and to provide an online identification system and method for the voltage drop source

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  • Online voltage drop source identification system and method
  • Online voltage drop source identification system and method
  • Online voltage drop source identification system and method

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[0018] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0019] figure 1 The structure of an online identification system for voltage sag sources of the present invention is shown. As shown in the figure, the present invention is realized in this way. An online identification system for voltage sag sources includes a power system simulation calculation program module 1, and a power system simulation calculation program The training database 2 connected to the module 1, the artificial neural network program module 3 connected to the training database 2, and the three parts of the program are deployed on the same industrial control computer, which is conn...

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Abstract

The invention discloses an online voltage drop source identification system and method. The online voltage drop source identification system comprises an electric system simulating calculation program module, a training database and an artificial neural network program module, wherein the electric system simulating calculation program module is used for carrying out simulating calculation on different bus faults and obtaining the voltage simulating calculation result of each node, the training database is connected with the electric system simulating calculation program module and used for storing voltage effective values of all buses in an electric system under different fault conditions, the voltage effective values are worked out through an electric system simulating calculation program, and the artificial neural network program module is connected with the training database and used for carrying out artificial network training through data in the training database. According to the online voltage drop source identification system and method, the position where a voltage drop source is triggered can be rapidly worked out according to the bus voltage monitoring result of electric energy quality monitoring devices arranged on part of the buses, and a basis is provided for dispatching operators to handle the faults.

Description

technical field [0001] The invention belongs to the field of power quality, and in particular relates to an online identification system and method for a voltage drop source. Background technique [0002] With the transformation of the national economic development mode, more and more enterprises are engaged in the production of high-precision equipment and materials such as electronic products and nanomaterials. This puts forward higher requirements on the quality of power supply. A brief drop in voltage will cause irreparable losses to the enterprise. Therefore, it is of great economic benefit to quickly find out the cause of the voltage drop, identify the source of the fault, and quickly eliminate the fault. [0003] At present, domestic research on the location of voltage sag sources has not been widely carried out, and there is no application example in power companies. The present invention can be embedded in the dispatching automation system as a relatively independ...

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Application Information

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IPC IPC(8): G06N3/02G06N3/08G06N3/10G01R31/08
Inventor 袁中琛梁伟刘涛杜明韩磊王瑶
Owner STATE GRID CORP OF CHINA
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