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CAN (controller area network) bus based distribution automation terminal and analog quantity acquisition method thereof

A technology of distribution automation and CAN bus, applied in the field of analog quantity acquisition, can solve the problem that distribution automation terminals cannot be applied, and achieve the effect of strong scalability

Active Publication Date: 2014-12-17
CSG SMART SCI&TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional distribution automation terminals generally can only monitor voltage signals on two three-phase buses. However, in large substations, switching stations, etc., there may be three or even four or more bus voltages that need to be monitored. At this time, the traditional The distribution automation terminal can not be applied

Method used

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  • CAN (controller area network) bus based distribution automation terminal and analog quantity acquisition method thereof
  • CAN (controller area network) bus based distribution automation terminal and analog quantity acquisition method thereof

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Embodiment Construction

[0011] A power distribution automation terminal based on a CAN bus, including a plurality of data acquisition units 1 for collecting three-phase voltage and current signals, and the plurality of data acquisition units 1 communicate with a main processor 3 through a first CAN bus 2. The data acquisition units 1 communicate through the second CAN bus 4 . Described main processor 3 adopts ARM9 high-speed processor, as figure 1 shown. The data collected between each data acquisition unit 1 is handed over to the main processor 3 for processing through the first CAN bus 2 , and at the same time, the data acquisition units 1 exchange and collect information through the second CAN bus 4 .

[0012] Such as figure 1 As shown, the number of the data acquisition unit 1 is three, and the data acquisition unit 1 adopts a DSP digital signal processor 5 . The voltage transformer used to collect the three-phase voltage signal and the current transformer used to collect the three-phase curre...

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Abstract

The invention relates to a CAN (controller area network) bus based distribution automation terminal which comprises multiple data acquisition units used for acquiring three-phase voltage and current signals. The multiple data acquisition units communicate with a main processor through a first CAN bus, and communication is realized among the multiple data acquisition units through a second CAN bus. The invention further discloses an analog quantity acquisition method of the CAN bus based distribution automation terminal. An ARM9 high-speed processor is taken as a core board, data gathering is realized by taking the first CAN bus as a main passage, and mutual information gathering is realized among the data acquisition units through the second CAN bus. The CAN bus based distribution automation terminal has strong expansibility and meets multipath bus configuration requirements of large-sized transformer substations, switching stations and ring network cabinets.

Description

technical field [0001] The invention relates to the field of electric power terminals, in particular to an analog quantity acquisition method of a power distribution automation terminal based on a CAN bus. Background technique [0002] Distribution automation is a comprehensive system of automation functions including operation, monitoring, maintenance and user management of substations, distribution networks and users. Traditional distribution automation terminals generally can only monitor voltage signals on two three-phase buses. However, in large substations, switching stations, etc., there may be three or even four or more bus voltages that need to be monitored. At this time, the traditional The distribution automation terminal can not be applied. Contents of the invention [0003] The purpose of the present invention is to provide an analog quantity acquisition method of a distribution automation terminal based on a CAN bus that can monitor two or more bus voltages....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J13/00
CPCY02E60/723Y04S40/124Y02E60/7838Y04S10/16Y02E60/00
Inventor 李林郭晋楠
Owner CSG SMART SCI&TECH CO LTD
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