Power grid harmonic wave detection device based on artificial neural network

An artificial neural network and harmonic detection technology, applied in the direction of measuring devices, measuring electrical variables, instruments, etc., can solve the problems of sensitive circuit component parameters, large amount of calculation, large error, etc., and achieve high stability, good real-time performance, small error effect

Inactive Publication Date: 2011-01-05
NANJING SINDO TECH
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Problems solved by technology

The disadvantages of these devices are as follows: large error, poor real-time performance, especially when the grid frequency changes, very sensitive to circuit component parameters, and the detection effect is obviously worse when the parameters change; the dynamic response is slow, and the grid voltage is asymmetrical. The detection error of wa

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  • Power grid harmonic wave detection device based on artificial neural network
  • Power grid harmonic wave detection device based on artificial neural network
  • Power grid harmonic wave detection device based on artificial neural network

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[0014] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0015] like figure 1 Shown: a power grid harmonic detection device based on artificial neural network, including a data acquisition device 1, a harmonic detection device 2 connected to the data collection device 1, a comprehensive analysis device 3 connected to the harmonic detection device 2, and a comprehensive The data storage and output device 4 connected to the analysis device 3; wherein the data acquisition device 1 includes an isolation device 5 and a differential...

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Abstract

The invention discloses a power grid harmonic wave detection device based on an artificial neural network, comprising a data acquisition device, a harmonic wave detection device connected with the data acquisition device, a comprehensive analysis device connected with the harmonic wave detection device and a data storage and output device connected with the comprehensive analysis device, wherein the data acquisition device comprises an isolation device and a differential input device connected with the isolation device, and the comprehensive analysis device comprises an ARM (Advanced RISC Machines) chip and an FIFO (First In First Out) cache arranged in the ARM chip. The invention has the advantages of small error, good real-time performance, high stability, good effect and high precision.

Description

technical field [0001] The invention relates to a detection device, in particular to a power grid harmonic detection device based on an artificial neural network. Background technique [0002] With the extensive application of various power electronic devices and nonlinear loads, the harmonic pollution of the power system is becoming more and more serious, which brings great harm to the safe and economical operation of the power system. Harmonics can cause great harm. Since the power supply system and transmission lines have a certain impedance, this impedance changes with frequency. When each harmonic current flows through the power grid, a certain voltage drop will be generated. This voltage drop is superimposed on the power supply In terms of voltage, it causes the voltage waveform of the grid to be distorted, degrades the power quality, affects the safe and economical operation of power generation and power supply and electrical equipment, and increases the interference ...

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Application Information

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IPC IPC(8): G01R23/16G01R23/165
Inventor 尚雪嵩
Owner NANJING SINDO TECH
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