【摘要】：脈沖功率源技術(shù)作為電磁發(fā)射的關(guān)鍵性技術(shù),在最近幾十年中得到了快速的發(fā)展。脈沖功率源具有高電壓、大電流、強(qiáng)脈沖等特點(diǎn)。隨著裝備小型化的要求越來(lái)越高,脈沖功率源技術(shù)也面臨著提高系統(tǒng)儲(chǔ)能密度以減小裝置體積的課題。電感儲(chǔ)能技術(shù)是為應(yīng)對(duì)這個(gè)問(wèn)題而提出的方案。電感儲(chǔ)能能夠?qū)⒃械膬?chǔ)能密度提高數(shù)十倍甚至上百倍,這也對(duì)系統(tǒng)中開(kāi)關(guān)提出了更多的要求。本文研究的是晶閘管在電感儲(chǔ)能脈沖功率源中的應(yīng)用,主要通過(guò)下面幾方面進(jìn)行：首先文章介紹了并對(duì)比了幾種常用的功率半導(dǎo)體器件,闡述選擇晶閘管作為斷路開(kāi)關(guān)的原因。同時(shí),分析晶閘管的結(jié)構(gòu),了解晶閘管作為斷路開(kāi)關(guān)的特性。其次,從分析電感儲(chǔ)能脈沖功率源的拓?fù)浣Y(jié)構(gòu),并采用Simplorer 11.0仿真軟件進(jìn)行仿真。通過(guò)改變電路中的初始參數(shù)來(lái)分析晶閘管的關(guān)斷特性,從而確定影響晶閘管關(guān)斷的因素,為實(shí)驗(yàn)裝置選擇以及設(shè)置初始參數(shù)提供參考。然后,設(shè)計(jì)與測(cè)試晶閘管的觸發(fā)模塊。晶閘管的通流能力與觸發(fā)信號(hào)有直接的聯(lián)系。在脈沖功率系統(tǒng)中,需要按照系統(tǒng)要求設(shè)計(jì)驅(qū)動(dòng)電路,來(lái)控制電路的充電與放電。最后,測(cè)量不同初始條件下系統(tǒng)中的電流與電壓,并將測(cè)量的結(jié)果與仿真數(shù)據(jù)對(duì)比分析,得出晶閘管的在電感儲(chǔ)能脈沖功率系統(tǒng)中的關(guān)斷特性。本文研究了晶閘管的關(guān)斷特性,為晶閘管在電感儲(chǔ)能脈沖功率源中的應(yīng)用提供了參考。
[Abstract]:As the key technology of electromagnetic emission, pulse power source technology has been developed rapidly in recent decades. Pulse power source has the characteristics of high voltage, high current and strong pulse. With the increasing demand for miniaturization of equipment, the pulse power source technology is faced with the problem of increasing the energy storage density of the system to reduce the device volume. Inductive energy storage technology is proposed to deal with this problem. Inductance energy storage can increase the energy storage density by tens times or even hundreds times, which puts forward more requirements for switches in the system. In this paper, the application of thyristor in the inductance energy storage pulse power source is studied, mainly through the following aspects: firstly, several common power semiconductor devices are introduced and compared, and the reasons why thyristors are chosen as open circuit switches are expounded. At the same time, the structure of thyristor is analyzed, and the characteristics of thyristor as open circuit switch are understood. Secondly, the topology of the inductance energy storage pulse power source is analyzed, and the simulation software Simplorer 11.0 is used to simulate it. By changing the initial parameters of the circuit to analyze the turn-off characteristics of the thyristor, the factors affecting the turn-off of the thyristor are determined, which provides a reference for the selection of the experimental device and the setting of the initial parameters. Then, the trigger module of thyristor is designed and tested. The thyristor's current capacity is directly related to the trigger signal. In the pulse power system, the drive circuit should be designed according to the system requirements to control the charge and discharge of the circuit. Finally, the current and voltage in the system under different initial conditions are measured and compared with the simulation data. The turn-off characteristics of the thyristor in the inductive energy storage pulse power system are obtained. The turn-off characteristic of thyristor is studied in this paper, which provides a reference for the application of thyristor in the inductive energy storage pulse power source.
【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】：2015
【分類號(hào)】：TN34

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