發(fā)布時(shí)間：2018-01-05 20:33

  本文關(guān)鍵詞：高壓懸浮電壓測(cè)試技術(shù)研究　出處：《南京理工大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 脈沖功率源 懸浮電位 差分探頭 測(cè)試裝置 動(dòng)態(tài)電壓修正

【摘要】：脈沖功率源技術(shù)是電磁發(fā)射系統(tǒng)的關(guān)鍵技術(shù)之一,脈沖功率源系統(tǒng)具有體積龐大、結(jié)構(gòu)復(fù)雜、模塊與模塊之間距離較遠(yuǎn)的空間分布特點(diǎn),采用傳統(tǒng)單端測(cè)試測(cè)量系統(tǒng)中測(cè)試點(diǎn)電位時(shí),須使用較長的連接線傳輸信號(hào),一方面長傳輸線易受強(qiáng)磁場(chǎng)干擾,另一方面?zhèn)鬏斁�上的分布參數(shù)會(huì)造成信號(hào)失真,除此之外,模塊與模塊之間的電磁干擾、測(cè)試點(diǎn)對(duì)地分布參數(shù)等都將增加測(cè)試的困難程度,為了有效監(jiān)測(cè)、控制電源模塊的工作狀態(tài)、研究空間分布參數(shù)對(duì)于電源輸出的影響,需對(duì)高壓懸浮電壓測(cè)試技術(shù)及測(cè)試裝置展開研究。主要研究工作如下:首先,對(duì)電容儲(chǔ)能脈沖功率源系統(tǒng)單模塊、多模塊放電原理進(jìn)行研究,建立PFN在不同放電階段的狀態(tài)方程,并通過電路仿真和頻譜分析的方式得出待測(cè)信號(hào)的時(shí)域、頻域特點(diǎn)。在此基礎(chǔ)上,研究現(xiàn)有的幾種浮地測(cè)試方法,分析每種方法的可行性,并選擇差分探頭進(jìn)行測(cè)試。然后,針對(duì)現(xiàn)有差分探頭在進(jìn)行高壓測(cè)試時(shí)量程不足的問題,對(duì)信號(hào)進(jìn)行衰減處理,選擇電阻型分壓器模型,通過電路仿真得出影響分壓器響應(yīng)時(shí)間的參數(shù),并設(shè)計(jì)硬件補(bǔ)償電路以減小響應(yīng)時(shí)間。搭建電容儲(chǔ)能脈沖功率源實(shí)驗(yàn)平臺(tái),進(jìn)行懸浮高壓測(cè)試相關(guān)實(shí)驗(yàn),實(shí)驗(yàn)結(jié)果表明,硬件補(bǔ)償電路可有效減小動(dòng)態(tài)電壓信號(hào)的波形失真:分布參數(shù)的存在導(dǎo)致測(cè)試裝置在進(jìn)行電壓測(cè)試時(shí)存在一定誤差。最后,分析誤差產(chǎn)生的原因,采取二級(jí)濾波的動(dòng)態(tài)電壓修正方法,計(jì)算測(cè)試裝置的傳遞函數(shù),并將計(jì)算數(shù)據(jù)代入MATLAB中搭建系統(tǒng)仿真模型,對(duì)電壓測(cè)試的結(jié)果進(jìn)行修正處理,將修正波形與理論計(jì)算波形加以對(duì)比,得出經(jīng)二級(jí)濾波修正后波形更加接近理論波形的結(jié)論。
[Abstract]:Pulsed power technology is the key technology of electromagnetic launch system, with large volume, complex structure of pulse power source system, the spatial distribution characteristics between the module and the module of the distance, the potential of traditional test single end testing measurement system, signal transmission line must be connected with a longer, a long transmission line easily due to the interference of a strong magnetic field, on the other hand, the distribution parameters of the transmission line will cause signal distortion, in addition, the electromagnetic interference between modules, test points of distribution parameters will increase the degree of difficulty of the test, in order to effectively monitor, control power supply module working state, affect the spatial distribution of parameters for power output the need to study high suspension voltage test method and test device. The main research work is as follows: firstly, the capacitive pulse power supply system for single mode, multi module Research on electrical principle, the establishment of PFN in the state equation of the different discharge stages, and through the analysis of circuit simulation and the time-domain spectrum, the signal frequency characteristics. On this basis, research on the testing method of floating current, feasibility analysis of each method, and choose the differential probe test. Then, aiming at the existing problem of the differential probe range in high voltage test, the signal attenuation, selection of resistance type voltage divider model, through circuit simulation of voltage divider response time parameters, and design the hardware compensation circuit to reduce the response time was set up. The capacitive pulse power source of the experimental platform. The suspension of high voltage test, the experimental results show that the waveform hardware compensation circuit can effectively reduce the signal distortion: dynamic voltage distribution parameters due to the existence of the test device in voltage measurement There is a certain error test. Finally, the causes of error analysis, adopt dynamic voltage correction method two level filter, transfer function calculation of the test device, and the calculated data into the MATLAB build system simulation model, the voltage testing result is corrected, the correction waveform waveform compared with the theoretical calculation, obtained by the the two stage filter modified waveform waveform closer to the theoretical conclusion.

【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TM15;TM933.2

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