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Real-time current diagnosis method and equipment for homologous SMV sampling information of smart substation

A smart substation and real-time current technology, applied in the direction of measuring current/voltage, measuring electrical variables, measuring devices, etc., can solve the problems of insufficient research time and limited operating experience, and achieve the goal of facilitating inspection and calibration work and promoting stable operation Effect

Active Publication Date: 2015-11-18
ZHUHAI POWER SUPPLY BUREAU GUANGDONG POWER GIRD CO
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Problems solved by technology

Since the research time of electronic transformers at home and abroad is not long enough, especially the practice of hanging nets is not enough, so the accumulated operating experience is very limited

Method used

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  • Real-time current diagnosis method and equipment for homologous SMV sampling information of smart substation
  • Real-time current diagnosis method and equipment for homologous SMV sampling information of smart substation
  • Real-time current diagnosis method and equipment for homologous SMV sampling information of smart substation

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Embodiment Construction

[0017] 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.

[0018] figure 1 It is a flowchart of a real-time current diagnosis method for homologous SMV sampling information in a smart substation of the present invention, including:

[0019] S101: collecting sampling information of different groups of current transformers on the same feeder;

[0020] S102: Comparing the amplitudes of the sampling information obtained by the two sets of current transformers with the same range, and sending an alarm signal according to a preset current verification criterion.

[0021] figure 2 It is a schematic diagram of a real-time current diagnosis device for homologous SMV sampling information of a smart substation according to the present invention. Combine the following figure 1 , figure 2 The present invention will be further d...

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Abstract

The invention discloses a real-time current diagnosis method and equipment of homologous SMV (Sampled Measured Value) sample information of an intelligent substation. The current diagnosis method comprises the steps of: acquiring sampled information on current transformers of different groups on the same feeder line; and comparing the magnitude values of the sampled information, with the same measurement range, acquired by two groups of current transformers, and sending out alarm signals according to a preset current calibration criterion. By adopting the method and the equipment, the deviation can be measured in an online and real-time manner during the operation of electronic transformers, thus the reliability and safety in operation of the electronic transformers in the intelligent substation are greatly improved.

Description

technical field [0001] The invention relates to SMV sampling technology, in particular to a real-time current diagnosis method and equipment for homologous SMV sampling information of an intelligent substation. Background technique [0002] A large number of electronic transformers are used in the construction of smart grids. Therefore, the reliability and stability of electronic transformers become the key to the large-scale promotion of smart grids. Due to the fact that the current electronic transformer has not been invested for a long time, its reliability, stability and accuracy have not been widely recognized and verified, especially in the field of metering and billing of power systems. The type transformer still cannot be used in the billing field of the power system. [0003] At the same time, after the electronic transformer is put into operation, due to the influence of environmental temperature, surrounding environment, electromagnetic interference, product qual...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R19/165
Inventor 邹国惠翁奕珊罗奕飞丘冠新黄培专胡云花王力伟
Owner ZHUHAI POWER SUPPLY BUREAU GUANGDONG POWER GIRD CO
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