High-voltage discharge loop impedance self-matching method and device based on expert system

Abstract

The invention provides a high-voltage discharge loop impedance self-matching method and device based on an expert system. The method comprises the following steps of: performing full-aircraft lightning navigability test according to different aircraft types, calling a corresponding lightning stroke airplane model from an expert system, achieving rapid impedance self-adaption intelligent matching of a tested loop through a control processing unit, and finally, generating discharge voltage required by scaling lightning current test waveforms by a lightning current generator, so that transient lightning current waveforms with the low waveform distortion rate are obtained and applied to a tested airplane to complete a verification test of the whole-airplane lightning stroke effect of the airplane. An expert database system constructed on the basis of a large amount of multi-type full-aircraft lightning stroke transient impedance characteristic data is utilized, so that quick matching of the discharge loop acre impedance value can be realized, and the problems of long time consumption and low reliability in determining impedance parameters according to trial-and-error tests are solved.

Description

technical field [0001] The invention relates to the field of high-voltage electrical technology, in particular to an expert system-based high-voltage discharge circuit impedance self-matching method and device. Background technique [0002] Safety accidents caused by lightning strikes during flight occur frequently. According to statistics, aircraft with fixed routes are struck by lightning once a year on average. Therefore, it has always been the goal that people strive to minimize the impact of atmospheric lightning environment on flight safety. [0003] Most of the aircraft's electronic and electrical equipment are installed inside the airframe, and are generally not subject to direct lightning strikes, but lightning may cause indirect interference effects on these equipment. The transient strong electromagnetic field and high-level structural voltage generated by lightning discharge will induce voltage and current surges in the aircraft's internal systems and circuits, ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a high-voltage discharge circuit impedance self-matching method and device based on an expert system. Using an expert database system based on a large number of multi-model full-machine lightning transient impedance characteristic data construction, the rapid adjustment of the discharge circuit impedance value can be realized. Matching, solving the problems of long time-consuming and low reliability in determining impedance parameters based on trial and error tests

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