本文選題：壓接式IGBT　切入點(diǎn)：開(kāi)關(guān)特性　出處：《北京交通大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：目前,柔性直流輸電在全世界范圍內(nèi),尤其是我國(guó),都在朝著高電壓等級(jí),大容量方向發(fā)展,這無(wú)疑對(duì)其中關(guān)鍵設(shè)備換流閥和混合式直流斷路器有了更高的要求。同樣,作為換流閥和斷路器重要組成的開(kāi)關(guān)器件IGBT,其封裝性能以及電氣性能要求也必然更加嚴(yán)格。作為老式的焊接型IGBT,已經(jīng)漸漸不能滿足現(xiàn)在電力系統(tǒng)的要求,隨之產(chǎn)生的一種新的壓接型IGBT,在功率等級(jí)、開(kāi)關(guān)速度等方面有著明顯的優(yōu)勢(shì),已成為柔性直流輸電的優(yōu)選器件。因此,對(duì)壓接式IGBT開(kāi)關(guān)特性測(cè)試有其工程實(shí)際意義。本文主要完成以下工作。首先,本文采用公式理論推導(dǎo)與仿真模擬相結(jié)合來(lái)完成測(cè)試平臺(tái)中恒流充電裝置的設(shè)計(jì)。為改變開(kāi)關(guān)特性測(cè)試平臺(tái)母線電容傳統(tǒng)的由市電,經(jīng)調(diào)壓器,再通過(guò)變壓器,最后由整流橋接充電電阻充電方式所引起的充電效率低、難控制電容電壓、怕短路等缺點(diǎn),設(shè)計(jì)一套基于LC諧振原理的恒流充電系統(tǒng),并通過(guò)MATLAB進(jìn)行仿真驗(yàn)證。然后,以仿真結(jié)果為依托,根據(jù)理論分析和器件的實(shí)際特性,對(duì)系統(tǒng)涉及到的元器件進(jìn)行選取,完成恒流充電裝置的實(shí)際搭建。裝置中不僅要對(duì)電容、電感、變壓器、整流硅等主電路器件合理選取,還要確定控制及保護(hù)設(shè)備,并以實(shí)際充電效果驗(yàn)證整個(gè)裝置的可靠性和實(shí)用性。最后,針對(duì)ABB公司生產(chǎn)的StakPak型IGBT,采用雙脈沖測(cè)試原理,完成開(kāi)關(guān)特性測(cè)試平臺(tái)的設(shè)計(jì)并進(jìn)行測(cè)試。測(cè)試平臺(tái)運(yùn)行過(guò)程中,把充電裝置實(shí)際應(yīng)用到測(cè)試的預(yù)充電環(huán)節(jié),驗(yàn)證裝置電流電壓指標(biāo)達(dá)到測(cè)試平臺(tái)要求。對(duì)于IGBT器件的開(kāi)關(guān)特性測(cè)試同樣采用MATLAB仿真和實(shí)測(cè)結(jié)合對(duì)比的方法,給出相關(guān)結(jié)論。
[Abstract]:At present, the flexible direct current transmission in the world, especially in our country, is developing towards the direction of high voltage level and large capacity, which undoubtedly has higher requirements for the key equipment, commutation valve and hybrid DC circuit breaker. As an important component of converter valves and circuit breakers, IGBT, which is an important component of converter valves and circuit breakers, is bound to be more stringent in its packaging and electrical performance. As an old-fashioned welded IGBT, it has gradually failed to meet the requirements of the current power system. A new voltage-connected IGBT, which has obvious advantages in power level, switching speed and so on, has become an excellent device for flexible direct current transmission. It is of practical significance to test the characteristics of voltage-connected IGBT switches. The main work of this paper is as follows. First, In this paper, the design of constant current charging device in the test platform is completed by combining formula theory derivation and simulation. Finally, a constant current charging system based on LC resonance principle is designed, which is caused by the low charging efficiency caused by the rectifier bridge charging resistance charging mode, which is difficult to control the capacitor voltage and is afraid of short circuit. Then, the system is simulated by MATLAB. Based on the simulation results, according to the theoretical analysis and the actual characteristics of the device, the components involved in the system are selected, and the practical construction of the constant current charging device is completed. In the device, not only the capacitance, the inductance, the transformer, but also the capacitance, the inductance and the transformer are not only used in the device. The reasonable selection of the main circuit devices, such as rectifier silicon, should also determine the control and protection equipment, and verify the reliability and practicability of the whole device with the actual charging effect. Finally, for the StakPak IGBT produced by ABB Company, the principle of double pulse testing is adopted. Complete the design and test of the test platform of switch characteristics. In the running process of the test platform, the charging device is applied to the pre-charging link of the test. The current and voltage indexes of the device meet the requirements of the test platform. The test results of the switching characteristics of the IGBT devices are also presented by combining the MATLAB simulation with the actual measurement and comparison.
【學(xué)位授予單位】：北京交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TN322.8;TM721.1

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