發(fā)布時(shí)間：2018-03-23 13:57

  本文選題：全釩液流電池　切入點(diǎn)：三相全橋電壓型整流器　出處：《內(nèi)蒙古科技大學(xué)》2014年碩士論文

【摘要】：在光伏、風(fēng)力等發(fā)電技術(shù)中，其波動(dòng)性和隨機(jī)性是制約新能源大規(guī)模發(fā)電的主要限制因素，微電網(wǎng)與儲(chǔ)能技術(shù)配合工作、聯(lián)合供電是解決這一問題的有效措施。在眾多的大規(guī)模儲(chǔ)能元件中，全釩液流電池作為一種新型的儲(chǔ)能電池，由于其眾多優(yōu)點(diǎn)，在微電網(wǎng)中有廣泛的應(yīng)用前景，成為了新能源領(lǐng)域的研究熱點(diǎn)。論文以液流電池儲(chǔ)能單元輔助電網(wǎng)工作的應(yīng)用為主體，開展了如下研究工作： 文章首先介紹了微電網(wǎng)的國(guó)內(nèi)外研究狀況，列舉了儲(chǔ)能技術(shù)在微電網(wǎng)中的幾個(gè)重要作用，分析比較了幾種常見的儲(chǔ)能技術(shù)的優(yōu)缺點(diǎn)，并結(jié)合釩液流電池的應(yīng)用優(yōu)勢(shì)，分析了它作為大規(guī)模電力儲(chǔ)能元件在微電網(wǎng)發(fā)展應(yīng)用中的可行性。 介紹了釩液流電池的基本工作原理，比較它的幾種經(jīng)典模型，交流阻抗模型、含支路電流的三階模型以及系統(tǒng)等效損耗模型。論文最終確定采用系統(tǒng)等效損耗模型，并建立了釩液流電池的電氣模型，在Matlab/Simulink中搭建全釩液流電池的仿真模型。并對(duì)電池模型進(jìn)行恒流充放電模擬，得到了VBR（Vanadium Redox Flow Battery）充放電過程中的電壓變化曲線。 雙向變流器作為電力系統(tǒng)和能量存儲(chǔ)系統(tǒng)的中間紐帶，與儲(chǔ)能系統(tǒng)運(yùn)行的可靠性息息相關(guān)，本論文選用的是三相全橋電壓型整流器。文中分析介紹了三相全橋VSR（Voltage Source PWM Rectifer）工作的基本原理，為實(shí)現(xiàn)既定的控制目標(biāo)，首先建立了VSR詳細(xì)的數(shù)學(xué)模型，然后使儲(chǔ)能系統(tǒng)在微網(wǎng)聯(lián)網(wǎng)運(yùn)行工作中運(yùn)用恒功率控制，孤島運(yùn)行工作中運(yùn)用恒電壓/恒頻率控制。重點(diǎn)設(shè)計(jì)了實(shí)現(xiàn)兩種控制具體的方式。并在Matlab環(huán)境中搭建仿真模型，，驗(yàn)證兩種運(yùn)行模式情況下控制方法的可行性，說明其對(duì)于微電網(wǎng)的穩(wěn)定運(yùn)行，具有一定的參考價(jià)值。
[Abstract]:In photovoltaic, wind power and other power generation technologies, its volatility and randomness are the main limiting factors restricting large-scale power generation of new energy, and microgrid and energy storage technology work together. The combined power supply is an effective measure to solve this problem. As a new type of energy storage battery, all-vanadium liquid flow battery is widely used in microgrid because of its many advantages. This paper focuses on the application of the liquid flow battery energy storage unit to the power grid, and carries out the following research work:. This paper first introduces the research status of microgrid at home and abroad, enumerates several important roles of energy storage technology in microgrid, analyzes and compares the advantages and disadvantages of several common energy storage technologies, and combines the advantages of vanadium liquid flow battery application. The feasibility of its application in the development and application of micro-grid as a large-scale electric energy storage element is analyzed. The basic working principle of vanadium liquid flow battery is introduced. Several classical models, AC impedance model, third order model with branch current and system equivalent loss model are compared. The electric model of vanadium liquid flow battery is established, and the simulation model of all vanadium liquid flow battery is built in Matlab/Simulink. The constant current charge-discharge simulation of the battery model is carried out, and the voltage change curve during the charging and discharging process of VBR(Vanadium Redox Flow battery is obtained. As the middle link between power system and energy storage system, bidirectional converter is closely related to the reliability of energy storage system. In this paper, the three-phase full-bridge voltage source rectifier is selected. In this paper, the basic principle of three-phase full-bridge VSR(Voltage Source PWM Rectifier is analyzed and introduced. In order to realize the established control goal, a detailed mathematical model of VSR is established. Then the energy storage system is controlled by constant power in the operation of microgrid network, and the constant voltage / constant frequency control is used in the operation of isolated islands. Two specific control methods are designed, and the simulation model is built in the Matlab environment. The feasibility of the two control methods under the two operation modes is verified, which shows that they have certain reference value for the stable operation of the microgrid.
【學(xué)位授予單位】：內(nèi)蒙古科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM912

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 張興;蓄電池充、放電裝置中的PWMACDC變流器設(shè)計(jì)[J];電工電能新技術(shù);2002年01期

2 董全峰,張華民,金明鋼,鄭明森,詹亞丁,孫世剛,林祖賡;液流電池研究進(jìn)展[J];電化學(xué);2005年03期

3 李勛,朱鵬程,楊蔭福,陳堅(jiān);基于雙環(huán)控制的三相SVPWM逆變器研究[J];電力電子技術(shù);2003年05期

4 梁超輝;劉邦銀;段善旭;;基于濾波電容電流補(bǔ)償?shù)牟⒕W(wǎng)逆變器控制[J];電力電子技術(shù);2008年08期

5 梁才浩,段獻(xiàn)忠;分布式發(fā)電及其對(duì)電力系統(tǒng)的影響[J];電力系統(tǒng)自動(dòng)化;2001年12期

6 王建;李興源;邱曉燕;;含有分布式發(fā)電裝置的電力系統(tǒng)研究綜述[J];電力系統(tǒng)自動(dòng)化;2005年24期

7 王成山;肖朝霞;王守相;;微網(wǎng)綜合控制與分析[J];電力系統(tǒng)自動(dòng)化;2008年07期

8 郭力;王成山;;含多種分布式電源的微網(wǎng)動(dòng)態(tài)仿真[J];電力系統(tǒng)自動(dòng)化;2009年02期

9 畢大強(qiáng);葛寶明;王文亮;柴建云;;基于釩電池儲(chǔ)能系統(tǒng)的風(fēng)電場(chǎng)并網(wǎng)功率控制[J];電力系統(tǒng)自動(dòng)化;2010年13期

10 張文亮;劉壯志;王明俊;楊旭升;;智能電網(wǎng)的研究進(jìn)展及發(fā)展趨勢(shì)[J];電網(wǎng)技術(shù);2009年13期

相關(guān)博士學(xué)位論文 前1條

1 楊占剛;微網(wǎng)實(shí)驗(yàn)系統(tǒng)研究[D];天津大學(xué);2010年

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