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

A technology of CAN bus and power distribution automation, which is applied in the direction of electrical components, circuit devices, information technology support systems, etc., can solve the problems that power distribution automation terminals cannot be applied, and achieve the effect of strong scalability

Active Publication Date: 2012-12-19
CSG SMART SCI&TECH CO LTD +1
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  • Abstract
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  • Claims
  • Application Information

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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, ...

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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 power terminals, in particular to a CAN bus-based power distribution automation terminal and an analog quantity acquisition method thereof. 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 is not applicable. Contents of the invention [0003] The primary purpose of the present invention is to provide a CAN bus-based power distribution automation terminal capable of monitoring more than two bus voltages. [0004] In order to achieve ...

Claims

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Application Information

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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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