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Error magnitude calibration device and transferring method for digital power quality analyzer

A power quality analysis and verification device technology, applied in the direction of measuring devices, measuring electrical variables, instruments, etc., can solve the problems that there is no verification standard and error transmission system for fully digital power quality analyzers

Active Publication Date: 2013-03-20
ACCUPOWER ELECTRONIC TECH CO LTD OF TAIYUAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current power quality analyzer error value transfer system in my country is still based on the traditional analog system, and there is no fully digital power quality analyzer verification standard and error transfer system.

Method used

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  • Error magnitude calibration device and transferring method for digital power quality analyzer
  • Error magnitude calibration device and transferring method for digital power quality analyzer
  • Error magnitude calibration device and transferring method for digital power quality analyzer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1. Error value verification device of digital power quality analyzer

[0027] The specific structure of the error magnitude verification device of the digital power quality analyzer in this example is given by Figure 1 ~ Figure 2 Jointly shown, figure 1 Shown is a schematic diagram of the structure of the error value verification device of the new digital power quality analyzer, as shown in figure 1 As shown, the error magnitude verification device 1 of the digital power quality analyzer in this example is a traditional power quality analyzer that can output various test waveforms of three-phase AC voltage and three-phase AC current to verify the power supply 2, and a new type with There is a power quality parameter error comparator 4 with a digital stream input interface that conforms to various high-level standard digital communication protocols. The standard digital stream output and input interface of the protocol, the modular standard power quality an...

Embodiment 2

[0028] Embodiment 2. Error value verification device of digital power quality analyzer

[0029] The specific structure of the error magnitude verification device of the digital power quality analyzer in this example can be Figure 1 ~ Figure 2 etc. jointly show that the difference between the error magnitude verification device of the digital power quality analyzer of this example and the error magnitude verification device of the digital power quality analyzer of Embodiment 1 is as follows: 1. the traditional method of this example A power quality analyzer that outputs various test waveforms of three-phase AC voltage and three-phase AC current to verify the power supply 2, a new type of power quality parameter error comparator 4 with a digital stream input interface that conforms to various high-level standard digital communication protocols, The new model not only has traditional three-phase voltage and three-phase current input interfaces, but also has digital stream output a...

Embodiment 3

[0030] Embodiment 3. Error magnitude verification device of digital power quality analyzer

[0031] The specific structure of the error magnitude verification device of the digital power quality analyzer in this example is given by Figure 1 ~ Figure 2 etc. jointly show that the difference between the error magnitude verification device of the digital power quality analyzer of this example and the error magnitude verification device of the digital power quality analyzer of embodiment one and embodiment two has: 1. the example The traditional power quality analyzer that can output various test waveforms of three-phase AC voltage and three-phase AC current is used to verify the power supply 2, and the new type has a digital stream input interface that conforms to various high-level standard digital communication protocols to measure the error of power quality parameters. Comparator 4, a new type with both traditional three-phase voltage and three-phase current input interfaces, ...

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Abstract

The invention discloses an error magnitude calibration device, an error magnitude calibration system and an error magnitude transferring method for a digital power quality analyzer, which belong to the technical field of power quality measurement. The calibration device consists of a three-phase alternating current calibration power supply, a power quality parameter error comparator and an analog-to-digital (A / D) standard power quality analyzer; the A / D standard power quality analyzer comprises a signal conditioning module, an A / D conversion module, a signal processing module, a high-level and low-level digital communication protocol module, a display panel and the like; and the calibration system consists of the calibration device and a calibrated digital power quality analyzer. The error magnitude transferring method for the digital power quality analyzer comprises a step of transferring error magnitude downwards or tracing the source of the error magnitude upwards. The error magnitude calibration device, the error magnitude calibration system and the error magnitude transferring method have the advantages of perfect design concept, strict design theory, reasonable equipment structure, convenience of operation, simplicity and practicality, are an independent innovation achievement of the field of digitized power quality measurement, contribute to the promotion of precision and modernization level of the power quality measurement in China and the establishment of a novel digitized power quality measurement system, and are worth using and popularizing.

Description

1. Technical field [0001] The invention discloses an error magnitude verification device and a transmission method of a digital power quality analyzer, which belong to the technical field of digital power quality measurement, and in particular relate to an error magnitude verification device of a digital power quality analyzer and a digital power quality analysis The technical content of three aspects is the error value verification system of the instrument and the error value transfer method of the digital power quality analyzer. 2. Background technology [0002] In order to meet the needs of the digital development of power systems, digital power systems based on communication protocols such as IEC61850 have been more and more used, and correspondingly, a fully digital power quality analyzer system has also emerged. The core of the all-digital power quality analyzer system is the all-digital power quality analyzer. The biggest difference between this power quality analyze...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R35/04H04L29/06
Inventor 曹锐
Owner ACCUPOWER ELECTRONIC TECH CO LTD OF TAIYUAN
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