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High-speed electric power harmonic wave detector

A technology for power harmonics and detectors, applied in spectrum analysis/Fourier analysis, etc., can solve problems such as transmission and use efficiency reduction, transformer overheating, threat to power system, etc., to achieve strong developability, high accuracy, Scalable Effects

Inactive Publication Date: 2013-10-16
SHENYANG CHUANGDA TECH TRADE MARKET
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AI Technical Summary

Problems solved by technology

Harmonics reduce the production, transmission and use efficiency of electric energy, and even cause problems such as local overheating of transformers, mechanical vibration, noise and overvoltage, and malfunction of relay protection and automatic devices, which seriously threaten the safety and stable operation of power systems.
Harmonics will also cause serious interference to communication equipment and electronic equipment

Method used

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  • High-speed electric power harmonic wave detector

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Embodiment Construction

[0008] The system structure of the present invention is described in detail in conjunction with the working process.

[0009] For the specific structure of the high-speed power harmonic detector, see figure 1 , The model of the ARM main controller is selected as the single-chip microcomputer of the C8205F120 model.

[0010] The technical scheme of the present invention is realized as follows: signal conditioning module, A / D sampling control module, FPGA coprocessor module, ARM main controller module (C8205F120), and display module. Among them, when the high-speed power harmonic detector is working, the function of the signal conditioning module is to convert the strong electric signal into a weak electric signal, and calibrate the weak electric signal to be sampled, so that the sampling voltage and current signal meet the requirements of the amplitude-frequency characteristics; The function of the signal sampling conversion module is to sample and convert the signal to be det...

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Abstract

The invention belongs to the field of electric power detection, and especially relates to a high-speed electric power harmonic wave detector based on FPGA and ARM. The high-speed electric power harmonic wave detector altogether has five parts, namely a signal conditioning module, an A / D sampling control module, an FPGA coprocessor module, an ARM master controller module and a display module, wherein an output of the signal conditioning module is connected with an input of the A / D sampling control module; an output of the A / D sampling control module is connected with an input of the FPGA coprocessor module; an output of the FPGA coprocessor module is connected with an input of the ARM master controller module; and an output of the ARM master controller module is connected with an input of the display module.

Description

technical field [0001] The invention belongs to the field of power detection, in particular to a high-speed power harmonic detector based on FPGA+ARM. Background technique [0002] In recent years, with the rapid development of power electronic technology, the application of power electronic devices has become more and more extensive, and electric energy has been more fully utilized. However, the harmonic problems caused by power electronic devices are also becoming more and more serious. Harmonics reduce the production, transmission and use efficiency of electric energy, and even cause problems such as local overheating of transformers, mechanical vibration, noise and overvoltage, and malfunction of relay protection and automatic devices, which seriously threaten the safety and stable operation of power systems. . Harmonics can also cause serious interference to communication equipment and electronic equipment. How to reduce the harm it brings is a major technical proble...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R23/16
Inventor 王春艳栾清杨
Owner SHENYANG CHUANGDA TECH TRADE MARKET
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