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High-performance power quality analyzer

A power quality analysis, high-performance technology, applied in the direction of measuring electrical variables, instruments, measuring electricity, etc.

Inactive Publication Date: 2015-02-18
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Although most of the measurement links defined by IEC 61000-4-15 are represented by analog devices, the current flicker (power quality) analyzers are basically implemented digitally, which is conducive to the improvement of measurement accuracy and stability

Method used

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Embodiment Construction

[0049] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0050] Such as figure 1 , figure 2 As shown, a high-performance power quality analyzer, the present invention is characterized in that: the power quality analysis module and the flicker analysis module are respectively connected to the processor calculation module, and the processor calculation module is connected to the display;

[0051] Wherein, the power quality analysis module is composed of a sampling module, an AD conversion module, and a digital filter module; the flicker analysis module is composed of an adapter, a combination filter, and a scaling factor; the combination filter is composed of A square demodulator, a high-pass filter, a low-pass filter and a first-order low-pass filter are connected in sequence; a sampling module, an AD conversion module, a digital filter module, a processor calculation module and a display are connected in sequence.

[00...

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Abstract

Provided is a high-performance power quality analyzer. A power quality analysis module and a flickering analysis module are connected with a processor calculation module. The processor calculation module is connected with a displayer. The power quality analysis module is formed by sequentially connecting a sampling module, an AD conversion module and a digital filtration module in sequence. The flickering analysis module is formed by connecting an adapter, a junction filter and a scaling factor in sequence. The junction filter is formed by connecting a square law demodulator, a high-pass filter, a low-pass filter and a first-order low-pass filter in sequence. The sampling module, the AD conversion module and the digital filtration module, the processor calculation module and the displayer are connected in sequence. The high-performance power quality analyzer is high in measurement accuracy, high in sampling speed, reliable in performance, complete in function, rich in display interface and light in structure.

Description

technical field [0001] The invention belongs to the technical field of power measurement, in particular to a high-performance power quality analyzer. Background technique [0002] As an important energy source widely used in various fields of modern society, electric energy has become one of the important symbols to measure the development level and comprehensive national strength of a country or region. While satisfying the demand for electric energy in industrial production, society and people's life, improving the requirements for electric energy quality is a manifestation of a country's developed industrial production, technological level, and social civilization, and is the inevitable result of the development of the information age and information society. , It is the technical guarantee for enhancing the efficiency of electricity consumption, saving energy and reducing losses, improving the electrical environment, improving the overall benefits of the national economy...

Claims

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Application Information

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IPC IPC(8): G01R31/00
Inventor 沈鑫闫永梅曹敏张林山李月梅
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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