Electrical quantity transducer

A technology of electric power transmitter and voltage, applied in the direction of measuring electric variables, instruments, measuring devices, etc., can solve problems such as equipment malfunction, wrong transmission result, and system open loop.

Active Publication Date: 2014-06-04
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a power transmitter, which is a power transmitter based on FPGA field programmable gate array combined with triple-mode redundancy technology and has a fault-tolerant function. An error in any single-phase transmission will directly lead to an error in the final transmission result, and even cause system open-loop or equipment malfunction, resulting in the defect of paralyzing the entire system

Method used

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Examples

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Embodiment 1

[0083] The power transmitter of this embodiment is a power transmitter with a fault-tolerant function based on FPGA field programmable gate array combined with triple-mode redundancy technology. like figure 1 In the illustrated embodiment, the power transmitter of this embodiment includes a three-phase signal acquisition module, a signal conditioning module, an A / D sampling module, a frequency measurement module, an FPGA controller module, a CAN bus communication module, and a power supply module; wherein, The three-phase signal acquisition module includes three-phase voltage sensors and three-phase current sensors, the A / D sampling module includes sampling channels, ADC chips and peripheral circuits, and the output terminals of the three-phase voltage sensors and three-phase current sensors in the three-phase signal acquisition module It is connected with the input terminal of the signal conditioning module, the output terminal of the signal conditioning module is connected w...

Embodiment 2

[0133] Except that N is set to 32, others are the same as embodiment 1.

Embodiment 3

[0135] Except that N is set to 64, other is the same as embodiment 1.

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PUM

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Abstract

The invention discloses an electrical quantity transducer, and relates to a data processing device particularly suitable for achieving specific functions, in particular to an electrical quantity transducer with a fault tolerance function. The electrical quantity transducer is designed based on the FPGA according to the triple-module redundancy technology and comprises a three-phase signal acquisition module, a signal conditioning module, an A / D sampling module, a frequency measurement module, an FPGA controller module, a CAN bus communication module and a power module. The electrical quantity transducer overcomes the defect that an error in any single-phase transduction process of an existing electrical quantity transducer will directly result in inaccuracy of a final transduction result, open loops of a system or misoperation of equipment is caused and consequently breakdown of the whole system happens.

Description

technical field [0001] The technical solution of the invention relates to a data processing device especially suitable for a specific function, specifically a power transmitter. Background technique [0002] Power transmitters are widely used in electrical measurement, roving detection, automatic control and scheduling in the industrial field. With the increasing complexity of industrial automatic control systems and the emergence and continuous improvement of smart grids, the reliability of power systems has begun to be highly valued by countries all over the world. Among them, an important link to ensure the reliability of the power system is the high reliability of the detection and transmission device. [0003] Existing power transmitters do not have redundant fault-tolerant functions. Errors in any single-phase transmission will directly lead to errors in the final transmission results. In an industrial closed-loop control system, if the feedback information is wrong d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R22/10
Inventor 李志军周苗苗马军
Owner HEBEI UNIV OF TECH
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