本文選題：超導(dǎo)限流器 + 功率電子　； 參考：《電子科技大學(xué)》2014年碩士論文

【摘要】：由于電力系統(tǒng)容量不斷地增大,導(dǎo)致系統(tǒng)潛在的短路電流水平也相應(yīng)提高。過(guò)高的潛在短路電流給電網(wǎng)及其中的設(shè)備帶來(lái)極大地安全隱患。近年來(lái),超導(dǎo)限流器不斷發(fā)展起來(lái),被公認(rèn)為是限制故障電流的理想裝置。隨著電力電子技術(shù)的迅速發(fā)展,電力電子超導(dǎo)限流器尤其是橋路型超導(dǎo)限流器成為了限流器研究的一個(gè)熱點(diǎn)。本文在總結(jié)了目前超導(dǎo)限流器發(fā)展?fàn)顩r的基礎(chǔ)上,對(duì)多種橋路型超導(dǎo)限流器的原理和優(yōu)缺點(diǎn)進(jìn)行了分析,設(shè)計(jì)了一種新型的橋路型超導(dǎo)限流器--全控混合橋式超導(dǎo)限流器。此限流器解決了普通橋路型超導(dǎo)限流器不能限制穩(wěn)態(tài)故障電流、晶閘管橋路型超導(dǎo)限流器響應(yīng)時(shí)間較長(zhǎng)、雙繞組橋路型超導(dǎo)限流器裝置笨重等問(wèn)題。本文主要內(nèi)容如下:1.簡(jiǎn)要介紹了超導(dǎo)限流器的發(fā)展背景、發(fā)展?fàn)顩r及橋路型超導(dǎo)限流器的相關(guān)技術(shù)和特點(diǎn)。2.對(duì)比傳統(tǒng)橋式超導(dǎo)限流器,分析了本文所設(shè)計(jì)的橋路型超導(dǎo)限流器的優(yōu)勢(shì),然后對(duì)其進(jìn)行了工作原理說(shuō)明、數(shù)學(xué)理論分析、仿真建模及特性分析。3.然后本文就所設(shè)計(jì)的限流器進(jìn)行了簡(jiǎn)單的應(yīng)用探討,設(shè)計(jì)了一個(gè)發(fā)電側(cè)直接輸電到用戶側(cè)的低壓超導(dǎo)交流供電系統(tǒng),結(jié)合該系統(tǒng)研究了對(duì)應(yīng)的限流器的設(shè)計(jì)思路及系統(tǒng)中限流器的特性。4.本文最后,制備開(kāi)發(fā)了一個(gè)全控混合橋式限流器的實(shí)驗(yàn)驗(yàn)證模型,并對(duì)其軟硬件設(shè)計(jì)進(jìn)行了說(shuō)明;通過(guò)驗(yàn)證模型的實(shí)驗(yàn)結(jié)果與仿真結(jié)果的對(duì)比,證實(shí)了該限流器的可行性。
[Abstract]:As the capacity of power system increases, the potential short-circuit current level increases accordingly. Too high potential short-circuit current brings a great security hazard to the power network and its equipment. In recent years, superconducting current limiter has been developed and is recognized as an ideal device to limit fault current. With the rapid development of power electronics technology, power electronic superconducting current limiter, especially bridge type superconducting current limiter, has become a hotspot in the research of current limiter. On the basis of summarizing the development of superconducting current limiter at present, this paper analyzes the principle, advantages and disadvantages of various bridge type superconducting current limiter, and designs a new bridge type superconducting current limiter-full control hybrid bridge superconducting current limiter. The current limiter solves the problems that the common bridge superconducting current limiter can not limit the steady fault current, the thyristor bridge superconducting current limiter has a longer response time and the double winding bridge superconducting current limiter is cumbersome. The main contents of this paper are as follows: 1. This paper briefly introduces the development background of superconducting current limiter, the development situation and the related technology and characteristics of bridge type superconducting current limiter. Compared with the traditional bridge superconducting current limiter, the advantages of the bridge superconducting current limiter designed in this paper are analyzed, and the working principle, mathematical theory analysis, simulation modeling and characteristic analysis of the bridge superconducting current limiter are explained. Then, this paper discusses the application of the designed current limiter, and designs a low-voltage superconducting AC power supply system with direct transmission from the generator side to the user side. Combined with this system, the design idea of the corresponding current limiter and the characteristics of the current limiter in the system are studied. Finally, an experimental verification model of a fully controlled hybrid bridge current limiter is developed, and its hardware and software design is illustrated. The feasibility of the current limiter is verified by comparing the experimental results with the simulation results.
【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)】：TM471

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相關(guān)期刊論文 前1條

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本文編號(hào)：1971951