【摘要】：隨著當(dāng)前電力電子設(shè)備向著小型化輕量化的方向發(fā)展,尤其是消費(fèi)類(lèi)電子產(chǎn)品及計(jì)算機(jī)的發(fā)展,更多的設(shè)備需要同時(shí)有不同等級(jí)的電壓提供能量,而傳統(tǒng)的采用多電源模塊供電的方式卻不能滿(mǎn)足電子設(shè)備對(duì)小型化輕量化的發(fā)展要求,所以多路輸出電源技術(shù)就成為了重要的發(fā)展趨勢(shì),它不僅能夠有效的減小變換器的體積,在功耗上相對(duì)于采用多個(gè)單獨(dú)電源模塊供電也有很大的優(yōu)勢(shì)。但是多路輸出電源在實(shí)際應(yīng)用中仍存在許多問(wèn)題,其中一個(gè)很重要的問(wèn)題就是多路輸出變換器的各路輸出很難實(shí)現(xiàn)穩(wěn)壓,各路輸出電壓會(huì)隨著其中一路負(fù)載的變化而變化,即多路輸出變換器的交叉調(diào)整率問(wèn)題。針對(duì)此問(wèn)題,本文給出了一種新的解決多路輸出變換器交叉調(diào)整率的方法。本文首先介紹了多路輸出變換器在常見(jiàn)的三相功率模塊中的應(yīng)用,進(jìn)而介紹了傳統(tǒng)的多路輸出方式與采用多繞組變壓器實(shí)現(xiàn)的多路輸出方式的原理及其優(yōu)缺點(diǎn),之后闡述了多路輸出變換器的交叉調(diào)整率問(wèn)題,并詳細(xì)回顧了現(xiàn)有的調(diào)整多路輸出變換器交叉調(diào)整率的方法及其各自的利弊。由于本實(shí)驗(yàn)將以串聯(lián)諧振變換器為實(shí)驗(yàn)平臺(tái),所以文章對(duì)諧振變換器做了簡(jiǎn)單介紹,并對(duì)串聯(lián)諧振變換器的工作原理做了詳細(xì)分析。文章的創(chuàng)新部分是對(duì)于變壓器加磁柵以及在輸出電路加補(bǔ)償電容的設(shè)計(jì),文章首先從原理上對(duì)新的改善多路輸出變換器交叉調(diào)整率的方法做了介紹,由于多路輸出變換器存在交叉調(diào)整率的主要原因是由于多繞組變壓器各繞組間存在漏感,并且漏感間還存在相互耦合,所以文章首先從對(duì)磁性元件設(shè)計(jì)的角度對(duì)多繞變壓器在結(jié)構(gòu)上進(jìn)行優(yōu)化,提出通過(guò)在變壓器各繞組間加磁柵來(lái)抑制變壓器各繞組間的耦合,其基本原理是渦流去磁效應(yīng),由于在交流場(chǎng)中,磁柵中會(huì)產(chǎn)生渦流,而渦流會(huì)產(chǎn)生一個(gè)與原磁場(chǎng)反向的磁場(chǎng),從而消除各繞組間漏感的耦合,將各繞組進(jìn)行相互隔離。在抑制了變壓器各繞組的漏感相互耦合的基礎(chǔ)上,從電路的角度通過(guò)加補(bǔ)償電容消除等效串聯(lián)在輸出繞組的漏感,由于變壓器的漏感可等效為串聯(lián)在其輸出端的電感,所以根據(jù)諧振的原理,通過(guò)增加串聯(lián)電容,使之與漏感發(fā)生諧振從而阻抗為零,最終消除漏感對(duì)輸出的影響。文章從渦流去磁的解析算法及有限元仿真的角度對(duì)上述的過(guò)程進(jìn)行詳細(xì)的分析。最后文章通過(guò)一個(gè)四路輸出串聯(lián)諧振變換器為實(shí)驗(yàn)平臺(tái)對(duì)多路輸出變換器的交叉調(diào)整率問(wèn)題進(jìn)行了實(shí)驗(yàn)驗(yàn)證及分析。
[Abstract]:With the current development of power electronic equipment towards miniaturization, especially the development of consumer electronic products and computers, more and more devices need to have different levels of voltage to provide energy at the same time. However, the traditional mode of power supply by multi-power module can not meet the requirement of miniaturization of electronic equipment, so the technology of multi-output power supply has become an important development trend, which can not only reduce the volume of converter effectively, but also reduce the volume of converter effectively, so the technology of multi-output power supply has become an important trend. In terms of power consumption, there are also great advantages over using multiple individual power supply modules. However, there are still many problems in the practical application of multi-output power supply. One of the important problems is that the output of multi-output converter is very difficult to achieve voltage stabilization, and the output voltage of each channel will change with the change of one load. That is, the problem of cross-regulation of multi-channel output converter. In order to solve this problem, a new method to solve the cross-regulation rate of multi-channel output converter is presented in this paper. This paper first introduces the application of multi-channel output converter in common three-phase power module, and then introduces the principle, advantages and disadvantages of traditional multi-channel output mode and multi-channel output mode realized by multi-winding transformer. Then the problem of cross-regulation rate of multi-output converter is described and the existing methods of adjusting cross-regulation ratio of multi-output converter are reviewed in detail as well as their advantages and disadvantages. Because the series resonant converter will be used as the experimental platform in this paper, the resonant converter is briefly introduced, and the working principle of the series resonant converter is analyzed in detail. The innovation part of this paper is the design of transformer magnetic gate and compensation capacitor in the output circuit. Firstly, this paper introduces the new method to improve the cross-regulation rate of multi-output converter in principle. The main reason for the cross-regulation of multi-channel output converter is the leakage inductance between the windings of the multi-winding transformer and the coupling between the leakage sensors. Therefore, the paper firstly optimizes the structure of multi-winding transformer from the point of view of magnetic element design, and puts forward that the coupling of each winding of transformer can be suppressed by adding magnetic grid between the windings of transformer, the basic principle of which is eddy current demagnetization effect. In AC field, the eddy current will be generated in the magnetic grid, and the eddy current will produce a magnetic field opposite to the original magnetic field, thus eliminating the coupling of leakage inductance between the windings and isolating the windings from each other. On the basis of suppressing the coupling of leakage inductance of each winding of transformer, the leakage inductance of equivalent series in output winding is eliminated by adding compensation capacitance from the angle of circuit, because the leakage inductance of transformer can be equivalent to the inductance of series at its output end. So according to the principle of resonance, by adding the series capacitance to make it resonate with the leakage inductance, the impedance is zero, finally, the influence of leakage inductance on the output is eliminated. In this paper, the above-mentioned process is analyzed in detail from the angle of analytical algorithm and finite element simulation of eddy current demagnetization. Finally, a four-channel series resonant converter is used as an experimental platform to verify and analyze the cross-regulation of the multi-output converter.
【學(xué)位授予單位】：西安電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TM46

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 付英明;;多路輸出器[J];工業(yè)儀表與自動(dòng)化裝置;1986年05期

2 肖冬榮;;微機(jī)并行多路輸出軟接口[J];武漢工學(xué)院學(xué)報(bào);1987年02期

3 李幟;;多路輸出光控器[J];電氣時(shí)代;1989年02期

4 陳世杰;顧亦磊;呂征宇;;一種多路輸出軍用車(chē)載電源的設(shè)計(jì)[J];電源技術(shù)應(yīng)用;2003年11期

5 晏勇;;基于先進(jìn)技術(shù)多路輸出電源研究與設(shè)計(jì)[J];自動(dòng)化技術(shù)與應(yīng)用;2014年02期

6 周琛;;一種多路輸出開(kāi)關(guān)電源控制器[J];電源技術(shù)應(yīng)用;2005年12期

7 吳冬梅;蔡麗娟;;開(kāi)關(guān)電源的多路輸出技術(shù)發(fā)展綜述[J];電源世界;2006年11期

8 高利兵;開(kāi)關(guān)電源的多路輸出技術(shù)[J];電子工程師;2003年11期

9 吳冬梅;蔡麗娟;;開(kāi)關(guān)電源的多路輸出技術(shù)發(fā)展綜述[J];電氣傳動(dòng);2006年04期

10 謝運(yùn)祥,甘久超;基于同步整流的多路輸出變換器[J];電力電子技術(shù);2003年06期

相關(guān)會(huì)議論文 前1條

1 林思聰;;提高多路輸出開(kāi)關(guān)電源交叉調(diào)整率的一些設(shè)計(jì)方法[A];中國(guó)電工技術(shù)學(xué)會(huì)低壓電器專(zhuān)業(yè)委員會(huì)第十二屆學(xué)術(shù)年會(huì)論文集[C];2005年

相關(guān)重要報(bào)紙文章 前3條

1 廣東 黃啟偉;也談?dòng)眉t外線(xiàn)遙控接收多路輸出控制[N];電子報(bào);2005年

2 ;完整解決方案降低機(jī)車(chē)電源成本[N];中國(guó)電子報(bào);2009年

3 諸玲珍;安捷倫新型接收機(jī)測(cè)試儀滿(mǎn)足未來(lái)需求[N];中國(guó)電子報(bào);2008年

，

本文編號(hào)：2435265