本文選題：觸發(fā)電源 + 脈沖變壓器　； 參考：《沈陽理工大學(xué)》2017年碩士論文

【摘要】：近年來,脈沖功率技術(shù)取得快速發(fā)展,高壓脈沖放電破碎巖石技術(shù)更是獲得前所未有的成績。緊湊型Marx發(fā)生器在強(qiáng)功率脈沖輸出時(shí),對(duì)控制信號(hào)的有效性、穩(wěn)定性和連續(xù)性的研究顯得十分重要。本文主要針對(duì)觸發(fā)電源系統(tǒng)展開研究,傳統(tǒng)的觸發(fā)電源在輸出脈沖參數(shù)方面滿足應(yīng)用要求,但是制作工藝復(fù)雜,設(shè)計(jì)難度大,成本較高;現(xiàn)有產(chǎn)品輸出脈沖的幅值、寬度和能量都不能滿足使用的要求,故研制了一套用于緊湊型Marx發(fā)生器的觸發(fā)電源。觸發(fā)電源采用脈沖變壓器提升輸出脈沖幅值,脈沖形成部分主要通過兩級(jí)升壓方式對(duì)輸入電壓進(jìn)行倍壓輸出,用數(shù)字電路生成方波信號(hào)控制電子開關(guān),控制信號(hào)與MOS管之間采用光電模塊進(jìn)行隔離保護(hù)。觸發(fā)電源主體部分能輸出脈寬4μs的脈沖,但是脈沖前沿較緩,幅值較低,通過雙絞線輸入脈沖變壓器模塊,經(jīng)過高壓電容和磁開關(guān)對(duì)脈沖前沿陡化后接入脈沖變壓器的初級(jí)線圈,在次級(jí)線圈得到一個(gè)脈寬2μs,最大幅值200kV,重復(fù)頻率10Hz的高壓脈沖信號(hào)。在觸發(fā)電源實(shí)驗(yàn)時(shí)要對(duì)高電壓和大電流進(jìn)行測量,高電壓一般采用分壓器降壓測量,大電流使用羅氏線圈進(jìn)行降壓轉(zhuǎn)換測量。在分壓器中較常用的是電阻分壓器,故對(duì)其雜散參數(shù)進(jìn)行了理論和仿真分析,得知高壓臂對(duì)地電容對(duì)輸出特性影響較大,所以在設(shè)計(jì)電阻分壓器時(shí),在低壓臂加入屏蔽罩減小電磁干擾,同時(shí)減小高壓臂對(duì)地電容改善輸出波形。在觸發(fā)簡單Marx發(fā)生器的球隙開關(guān)實(shí)驗(yàn)中,輸出脈沖對(duì)巖石靶塊產(chǎn)生明顯的破壞效果,存儲(chǔ)能量部分轉(zhuǎn)化成對(duì)巖石破碎的動(dòng)能,故研制了緊湊型Marx發(fā)生器以減小內(nèi)部參數(shù)對(duì)能量的損耗。在三電極開關(guān)的連續(xù)觸發(fā)實(shí)驗(yàn)中,觸發(fā)電源的輸出頻率滿足設(shè)計(jì)要求,在高頻運(yùn)行下,觸發(fā)的有效性和穩(wěn)定性較高,可以用于緊湊型Marx發(fā)生器觸發(fā)實(shí)驗(yàn)。觸發(fā)緊湊型Marx發(fā)生器時(shí),以金屬球隙作為負(fù)載,對(duì)輸出波形進(jìn)行測量,用Matlab對(duì)數(shù)據(jù)進(jìn)行處理擬合,繪制包絡(luò)線,通過衰減系數(shù)、電容值和周期等計(jì)算出設(shè)備的內(nèi)部參數(shù)。通過實(shí)驗(yàn)得出,觸發(fā)電源滿足設(shè)計(jì)和使用要求。
[Abstract]:In recent years, the pulse power technology has made rapid development, and the high voltage pulse discharge broken rock technology has obtained unprecedented achievements. It is very important to study the validity, stability and continuity of the control signal when the compact Marx generator outputs the strong power pulse. This paper mainly focuses on the research of the trigger power supply system. The traditional trigger power supply meets the application requirements in the output pulse parameters, but the manufacturing process is complex, the design is difficult and the cost is high. The width and energy can not meet the requirement of use, so a set of trigger power supply for compact Marx generator is developed. In the trigger power supply, pulse transformer is used to raise the output pulse amplitude. The pulse forming part is mainly used to double the input voltage by two stage boost mode, and the digital circuit is used to generate square wave signal to control the electronic switch. The control signal and MOS transistor are isolated and protected by optoelectronic module. The main part of the trigger power supply can output the pulse with a pulse width of 4 渭 s, but the pulse front is slower and the amplitude is lower. The pulse transformer module is input through the twisted-pair wire. After the pulse front is steeped by high voltage capacitance and magnetic switch, the primary coil of the pulse transformer is connected to the primary coil of the pulse transformer. In the secondary coil, a high voltage pulse signal with a pulse width of 2 渭 s, a maximum amplitude of 200 kV and a repetition rate of 10 Hz is obtained. The high voltage and high current should be measured in the experiment of trigger power supply. The high voltage is usually measured by the voltage divider and the high current is measured by the Roche coil. The resistance divider is commonly used in the divider, so the spurious parameters of the divider are analyzed in theory and simulation. It is known that the high-voltage arm has a great influence on the output characteristics, so in the design of the resistor divider, The shield is added to the low-voltage arm to reduce the electromagnetic interference and the high-voltage arm to the ground capacitance to improve the output waveform. In the experiment of triggering a simple Marx generator, the output pulse produces obvious damage effect on the rock target, and the storage energy is converted into kinetic energy of rock fragmentation. Therefore, a compact Marx generator is developed to reduce the energy loss caused by internal parameters. In the continuous trigger experiment of three-electrode switch, the output frequency of the trigger power meets the design requirements. Under the high frequency operation, the trigger is more effective and stable, so it can be used in the trigger experiment of compact Marx generator. When the compact Marx generator is triggered, the output waveform is measured with the metal spherical gap as the load, the data is processed and fitted by Matlab, the envelope line is drawn, and the internal parameters of the equipment are calculated through attenuation coefficient, capacitance value and period. Through the experiment, the trigger power meets the design and use requirements.
【學(xué)位授予單位】：沈陽理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TN86

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 陳常;蒲世豪;冷利軍;鄭雪;;一種應(yīng)用于碳納米管制備的交流脈沖電源研制[J];真空;2015年05期

2 熊蘭;楊子康;胡國輝;謝子杰;馬龍;何為;;一種采用全固態(tài)開關(guān)的高壓雙極性脈沖源[J];電機(jī)與控制學(xué)報(bào);2015年09期

3 趙明亮;;單結(jié)晶體管可控硅觸發(fā)電路的安裝與調(diào)試[J];企業(yè)技術(shù)開發(fā);2015年23期

4 劉克富;;固態(tài)Marx發(fā)生器研究進(jìn)展[J];高電壓技術(shù);2015年06期

5 吳昊;周志成;吉亞民;劉洋;陳娜;孫秋芹;馬勇;;真空開關(guān)的觸發(fā)失效與主電極燒蝕特性研究[J];高壓電器;2015年01期

6 陳慶文;周麗麗;王濤;何艷;;兩種三相移相觸發(fā)主電路的觸發(fā)特點(diǎn)分析[J];黑龍江科學(xué);2014年06期

7 楊家志;蔣存波;范興明;楊斐;易勝利;楊帆;;高隔離度高壓脈沖電源的仿真與實(shí)驗(yàn)研究[J];高電壓技術(shù);2014年04期

8 張興亮;郭立紅;孟范江;楊貴龍;方艷超;劉邏;;旋轉(zhuǎn)火花開關(guān)多脈沖觸發(fā)系統(tǒng)設(shè)計(jì)[J];高電壓技術(shù);2014年01期

9 高華東;徐志躍;;脈沖電阻分壓器的性能分析和電感補(bǔ)償[J];電子設(shè)計(jì)工程;2013年19期

10 魏浩;孫鳳舉;劉鵬;姜曉峰;尹佳輝;曾江濤;邱愛慈;梁天學(xué);劉志剛;王志國;;±100 kV三電極場畸變氣體火花開關(guān)[J];強(qiáng)激光與粒子束;2012年04期

相關(guān)博士學(xué)位論文 前1條

1 王慶峰;緊湊型重復(fù)頻率脈沖功率源的探索研究[D];西南交通大學(xué);2011年

相關(guān)碩士學(xué)位論文 前6條

1 涂卓麟;大規(guī)模直線變壓器驅(qū)動(dòng)源同步觸發(fā)技術(shù)研究[D];復(fù)旦大學(xué);2014年

2 楊光;高壓碎石選擇性分離特性研究[D];沈陽理工大學(xué);2014年

3 馮希波;基于脈沖變壓器的觸發(fā)系統(tǒng)研制[D];華中科技大學(xué);2013年

4 林加金;基于脈沖變壓器和Marx發(fā)生器的脈沖驅(qū)動(dòng)源[D];國防科學(xué)技術(shù)大學(xué);2010年

5 吳傳奇;兩電極旋弧開關(guān)觸發(fā)系統(tǒng)的研究[D];華中科技大學(xué);2009年

6 劉偉蓮;基于電阻分壓器的納秒高壓脈沖測量系統(tǒng)研究[D];南京農(nóng)業(yè)大學(xué);2008年

，

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