本文關(guān)鍵詞：長(zhǎng)磁絕緣傳輸線傳輸過(guò)程數(shù)值模擬研究　出處：《電子科技大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 磁絕緣傳輸線 CHIPIC 數(shù)值模擬 高功率脈沖 單路脈沖功率真空裝置

【摘要】：近年來(lái),隨著高功率脈沖技術(shù)在民用軍用以及高新技術(shù)領(lǐng)域的高速發(fā)展,許多發(fā)達(dá)國(guó)家開始著力開展對(duì)Z箍縮裝置的研究。磁絕緣傳輸線作為Z箍縮裝置的重要組成器件,磁絕緣傳輸線的設(shè)計(jì)和理論研究是關(guān)鍵性的技術(shù)核心,但是由于器件的結(jié)構(gòu)復(fù)雜、成本高,所以一般要求在投入實(shí)際的實(shí)驗(yàn)之前對(duì)設(shè)計(jì)的磁絕緣傳輸線進(jìn)行仿真模擬。本文主要是基于CHIPIC粒子模擬軟件平臺(tái)對(duì)磁絕緣傳輸線進(jìn)行PIC模擬,不僅研究了磁絕緣傳輸線的基本理論,而且對(duì)關(guān)于傳輸線的設(shè)計(jì)也進(jìn)行了比對(duì)分析,而后采用CHIPIC對(duì)單路脈沖功率真空裝置進(jìn)行粒子模擬,為其投入實(shí)際實(shí)驗(yàn)提供有力的保證。具體分為以下幾個(gè)內(nèi)容:首先,對(duì)磁絕緣傳輸線的基本理論進(jìn)行分析,介紹了電子磁絕緣的穩(wěn)態(tài)流理論和非穩(wěn)態(tài)流理論,運(yùn)用CHIPC粒子模擬軟件和MAGIC粒子模擬軟件同時(shí)對(duì)同一結(jié)構(gòu)進(jìn)行PIC仿真,驗(yàn)證CHIPIC在同軸磁絕緣傳輸線模型的模擬的正確性。其次,介紹了三種電磁模擬算法——中心差分算法、時(shí)偏算法和高品質(zhì)因數(shù)算法,并對(duì)同一結(jié)構(gòu)使用三種算法分別模擬研究,來(lái)研究三種算法所模擬的結(jié)果的區(qū)別。并且對(duì)不同網(wǎng)格劃分對(duì)于PIC模擬結(jié)果的影響做了簡(jiǎn)單的介紹。再次,研究了同軸磁絕緣的設(shè)計(jì)需要注意的地方。不僅要選擇合適的負(fù)載二極管陰陽(yáng)極之間的間距,還要根據(jù)實(shí)際的需要選擇合適的同軸磁絕緣傳輸線陰陽(yáng)極間的間距,更要注意不同磁絕緣傳輸線相鏈接時(shí),其阻抗匹配的問(wèn)題。最后,研究了單路脈沖功率真空裝置中脈沖功率的饋入、匯聚及傳輸,在CHIPIC平臺(tái)上,采用多臺(tái)計(jì)算機(jī)進(jìn)行分進(jìn)程并行計(jì)算的方法,突破了單臺(tái)計(jì)算機(jī)的內(nèi)存及運(yùn)行速度限制,對(duì)單路脈沖功率的饋入、匯聚及傳輸裝置進(jìn)行建模,并設(shè)置相應(yīng)的參數(shù),從而對(duì)該大尺度裝置進(jìn)行了整體模擬。不僅對(duì)1米長(zhǎng)傳輸段的裝置進(jìn)行了模擬,還對(duì)擁有12米長(zhǎng)傳輸段的長(zhǎng)磁絕緣傳輸線進(jìn)行了模擬,模擬得到的該器件各個(gè)部分的陰陽(yáng)極間電壓、陰陽(yáng)極電流等一些重要的物理參數(shù)。模擬結(jié)果表明:該單路真空脈沖功率器件整體都可以保持磁絕緣狀態(tài),并達(dá)到了很好的功率匯聚的作用。該工作驗(yàn)證了真空狀態(tài)下脈沖功率產(chǎn)生及傳輸器件的可行性,為進(jìn)一步的實(shí)驗(yàn)研究提供了有力保證。
[Abstract]:In recent years, with the rapid development of high power pulse technology in civil and military high-tech fields, many developed countries began to carry out research on Z pinch device. An important part of the magnetically insulated transmission line as Z pinch device, design and theoretical research of magnetically insulated transmission lines is the core technology of the key, but because the device has complicated structure, high cost, so the general requirements before put into the experimental design of the magnetically insulated transmission line simulation. This paper mainly CHIPIC particle simulation software platform of magnetically insulated transmission line based on PIC simulation, not only studies the basic theory of magnetically insulated transmission lines, and the design of transmission line were also compared, and then using CHIPIC particle simulation of single pulse power vacuum device, provide a powerful guarantee for the actual experiment. Divided into specific The following contents: firstly, the basic theory of magnetically insulated transmission line is analyzed, the steady-state magnetic insulation flow theory and unsteady flow theory, the use of CHIPC particle and PIC simulation of a structure simulation software and MAGIC simulation, the correctness of the simulation model of transmission line verification in CHIPIC coaxial magnetically insulated. Secondly, introduces three kinds of electromagnetic simulation algorithm -- central difference algorithm, partial algorithm and algorithm of high quality factor, and for the same structure using the three algorithms, simulation study, the difference of the three algorithms. The simulation results of different mesh for the effect of the simulation results of PIC to do a simple introduction. Again, on the need to pay attention to the design of coaxial magnetically insulated place. Not only to select the load distance between anode and cathode diode is appropriate, but also according to the actual need to select the appropriate The coaxial magnetically insulated transmission line spacing between yin and Yang, more attention should be paid to the different magnetically insulated transmission line link, the impedance matching problem. Finally, the single channel pulsed power vacuum device feeding, gathering and transmission, in the CHIPIC platform, using multiple computer calculation method the process of parallel, broke through the memory and the running speed of the single computer, for single pulse power feed, gathering and transmission device modeling, and set the corresponding parameters, and thus to the large scale of the overall simulation device. Not only for the 1 meter long transmission device section was simulated, for long the magnetic transmission section has 12 meters long insulated transmission line is simulated, simulation results of the device in various parts of the cathode and anode voltage, anode current and some important physical parameters. The simulation results show that the single pulse power vacuum The whole device can maintain magnetic insulation state and achieve good power convergence. This work verifies the feasibility of pulsed power generation and transmission devices in vacuum, and provides a strong guarantee for further experimental research.

【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN811

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