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Digital lightning waveform simulation method and device

A simulation method and technology of a simulation device, which are applied in the field of electronic information, can solve the problems of difficult parameter adjustment, long use time, single function, etc., and achieve the effects of high security, stable performance and simple operation.

Active Publication Date: 2022-01-04
CHENGDU UNIV OF INFORMATION TECH
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AI Technical Summary

Problems solved by technology

[0006] One is the traditional way of building lightning signal sources through analog circuits, and using analog circuits to charge and discharge to realize waveform simulation at the back end of the sensor. The disadvantage is that the function is single, parameter adjustment is difficult, and it takes a long time to apply.

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  • Digital lightning waveform simulation method and device
  • Digital lightning waveform simulation method and device

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Embodiment Construction

[0052] For the convenience of those skilled in the art to better understand the technical solutions of the present invention, the following descriptions are therefore made in conjunction with the examples:

[0053] Lightning current is a unipolar non-periodic pulse that usually occurs over a short period of time, first rising from zero to a peak value and then falling from the peak value to zero at a relatively slow rate. The waveform of the unipolar pulsed lightning wave mainly has three important parameters: peak value, wave head time and half-peak time. The peak value of the lightning wave refers to the maximum value of the lightning current in a lightning flash; the wave head time of the lightning current refers to the time required for the lightning current to rise from zero to the peak value, because there is a superimposed oscillation at the beginning of the lightning current, so It is difficult to determine the real zero point of the lightning current, so two points ar...

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Abstract

The invention relates to the technical field of electronic information, provides a digital lightning waveform simulation method and device, and aims to realize lightning waveform simulation which is simple to operate, stable in performance and low in cost and avoid a large-current impact test required for obtaining a lightning waveform every time. According to the main scheme, the digital lightning waveform simulator adopts STM32F103VET6 as a core controller, a script is made through MATLAB to generate a lightning waveform double-exponential function data table, data is carried from a memory to a peripheral through DMA, and after software filtering, the data is output through DAC. Finally, the waveform simulator can generate the voltage waveform of the required parameters by inputting the parameters. The method and device are used for waveform simulation after lightning current is converted by the sensor.

Description

technical field [0001] The invention relates to the technical field of electronic information, and provides a digital lightning waveform simulation method and device. Background technique [0002] Lightning is an atmospheric discharge phenomenon that often occurs in nature. It can generate high-intensity electromagnetic pulses, which cause huge personal and property losses every year, and have attracted the attention of the society. The lightning current waveform has parameters such as wave head time, wave back time, and steepness factor. These parameters directly affect the lightning resistance performance of electronic circuits and power equipment, and are also an important basis for evaluating the severity of lightning strike accidents in power electronic systems. The harm of lightning is closely related to the amplitude of lightning current and lightning strike waveform. Lightning current is the main characteristic of lightning characteristics. Therefore, this paper deve...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B17/02G06F30/20
CPCG05B17/02G06F30/20Y02A90/10
Inventor 郭在华侯春燕苏德斌唐田野樊昌元
Owner CHENGDU UNIV OF INFORMATION TECH