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Error verification device and system and error propagation system and method of all-digital power measuring and controlling equipment

A measurement and control equipment, all-digital technology, applied in measuring devices, electrical testing/monitoring, measuring electrical variables, etc., can solve the problems of cumbersome power consumption, time-consuming, labor-consuming, power-consuming, all-digital electric energy meter measurement error transmission, etc.

Active Publication Date: 2015-03-18
ACCUPOWER ELECTRONIC TECH CO LTD OF TAIYUAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Invention patent "Error value verification device and error value transmission method of digital electric energy meter" (Patent No. 201010259309.4) and utility model patent "Error value verification device and error value transmission system of digital electric energy meter" (Patent No. 201020500189.8) only solves the measurement error transmission problem of the all-digital electric energy meter, and when the all-digital electric energy meter is verified, it is still necessary to use the heavy and power-consuming electric energy meter verification power supply for verification, which is time-consuming, laborious, and power-consuming. After the traditional energy meter verification power supply and A / D sampling link, additional errors will be generated due to the asynchrony of upward traceability and downward verification

Method used

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  • Error verification device and system and error propagation system and method of all-digital power measuring and controlling equipment
  • Error verification device and system and error propagation system and method of all-digital power measuring and controlling equipment
  • Error verification device and system and error propagation system and method of all-digital power measuring and controlling equipment

Examples

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Effect test

Embodiment 1

[0023] Embodiment 1. Error verification device for all-digital power measurement and control equipment

[0024] The specific structure of the error verification device of the all-digital power measurement and control equipment in this example is given by Figure 1 ~ Figure 2 Jointly shown, figure 1 Shown is a schematic structural diagram of the error verification device for all-digital power measurement and control equipment, as shown in figure 1As shown, the error verification device 1 of this all-digital power measurement and control equipment in this example is a traditional power measurement and control equipment verification power supply 2 that can output various waveforms of three-phase AC voltage and three-phase AC current. A power measurement and control parameter error comparator 4 with a digital stream input interface of a high-level standard digital communication protocol, and a new type of power measurement and control parameter error comparator 4 with both tradit...

Embodiment 2

[0025] Embodiment 2. Error verification device for all-digital power measurement and control equipment

[0026] The specific structure of the error verification device of the all-digital power measurement and control equipment in this example is given by Figure 1 ~ Figure 2 Jointly shown, figure 1 Shown is a schematic structural diagram of the error verification device for all-digital power measurement and control equipment. figure 2 Shown is a structural block diagram of the modular standard electric power measurement and control equipment. The difference between the error verification device of the all-digital power measurement and control equipment in this example and the error detection device of the all-digital power measurement and control equipment in Embodiment 1 is as follows: 1. This example The power measurement and control equipment verification power supply 2 that can output three-phase AC voltage and current of various test waveforms is a relatively small thre...

Embodiment 3

[0027] Embodiment 3. Error verification device for all-digital power measurement and control equipment

[0028] The specific structure of the error verification device of the all-digital power measurement and control equipment in this example is given by Figure 1 ~ Figure 2 Jointly shown, figure 1 Shown is a schematic structural diagram of the error verification device for all-digital power measurement and control equipment. figure 2 Shown is a modular block diagram of the standard power measurement and control equipment. The difference between the error checking device of the full-digital power measurement and control equipment of this example and the error checking device of the full-digital power measurement and control equipment of Embodiment 1 and Embodiment 2 is: 1. The signal conditioning module 5 of this example is a resistor divider. , or instrument current transformers, etc. 2. The model of the A / D conversion module 6 in this example is AD7663 or the like. 3. T...

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Abstract

The invention discloses an error verification device and system and an error propagation system and method of all-digital power measuring and controlling equipment and belongs to the technical field of error measurement of the digital power measuring and controlling equipment. The invention has four technical schemes: the error verification device, the error verification system, the error propagation system and the error propagation method. The error verification device consists of a verification power supply, a power measuring and controlling parameter error comparator and modular standard power measuring and controlling equipment; the error verification system consists of a verification device and verified all-digital power measuring and controlling equipment; the error propagation system consists of an error verification device of conventional power measuring and controlling equipment, a power measuring and controlling parameter error comparator and verified modular standard power measuring and controlling equipment, wherein the power measuring and controlling parameter error comparator is provided with a digital stream input interface meeting various high-level standard digital communication protocols; the error propagation method comprises the steps of error down propagation and error up tracing. The invention is characterized in that a power supply and a storing mechanism for error information are arranged in the modular standard power measuring and controlling equipment; the verification power supply is used only when the up tracing is performed, and verification is performed by using the power supply and the storing mechanism for the error information when the down propagation or verification is performed without using the heavy verification power supply, and therefore, not only are time, labor and electricity saved but also the verification precision is very high. The design concept is advanced; the equipment is reasonable in structure, simple and practical in operation and is an innovative product. A development and a contribution are made to electric power measurement modernization in China.

Description

1. Technical field [0001] The error verification device and system of all-digital electric power measurement and control equipment and the error transmission system and method disclosed by the present invention belong to the technical field of error measurement of digital electric power measurement and control equipment, and specifically relate to the error detection device and all-digital electric power measurement and control of all-digital electric power measurement and control equipment. The technical content of four aspects is the error verification system of the equipment, the error transmission system of the all-digital power measurement and control equipment, and the error transmission method of the all-digital power measurement and control equipment. 2. Background technology [0002] In order to meet the needs of the digital development of power systems, fully digital power systems based on communication protocols such as IEC61850 have been more and more applied, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B23/02G01R35/04
Inventor 曹锐
Owner ACCUPOWER ELECTRONIC TECH CO LTD OF TAIYUAN
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