【正文】
:馮光申請(qǐng)學(xué)位級(jí)別:碩士專業(yè):脈沖功率與等離子體指導(dǎo)教師:李敬東20090526華 中 科 技 大 學(xué) 碩 士 學(xué) 位 論 文 摘 要隨著材料技術(shù)的不斷進(jìn)步與電力電子技術(shù)的飛速發(fā)展,儲(chǔ)能設(shè)備的容量、響應(yīng)速度、能量密度以及效率等各個(gè)性能指標(biāo)都得到了極大的提升,儲(chǔ)能設(shè)備的性能隨之有了很大的改善?,F(xiàn)代控制理論的發(fā)展,使得儲(chǔ)能設(shè)備的控制更加方便和靈活,因而使得其應(yīng)用空間得到了很大的擴(kuò)展。本文對(duì)儲(chǔ)能設(shè)備應(yīng)用于微網(wǎng)的途徑、功能及其可行性進(jìn)行了研究。首先,本文研究了微網(wǎng)的原理和結(jié)構(gòu),總結(jié)了微網(wǎng)對(duì)于其各部分的技術(shù)要求,闡述了其對(duì)于解決電力系統(tǒng)現(xiàn)存問(wèn)題的重要意義,分析了儲(chǔ)能技術(shù)在微網(wǎng)中的重要地位,從而建立起儲(chǔ)能技術(shù)在微網(wǎng)中應(yīng)用研究的整體認(rèn)識(shí),介紹了儲(chǔ)能技術(shù)的發(fā)展現(xiàn)狀,比較了各種儲(chǔ)能技術(shù)的優(yōu)缺點(diǎn)。其次,本文介紹了儲(chǔ)能技術(shù)的原理和功能,在比較不同儲(chǔ)能設(shè)備共同點(diǎn)的基礎(chǔ)上,建立了儲(chǔ)能系統(tǒng)的統(tǒng)一模型。本文研究了儲(chǔ)能系統(tǒng)作為微電源和儲(chǔ)能裝置兩種職能在微網(wǎng)中的應(yīng)用及其可行性,得到了儲(chǔ)能系統(tǒng)在微網(wǎng)中的應(yīng)用模式及完全可行的結(jié)論,設(shè)計(jì)了相應(yīng)的控制系統(tǒng)并研究了微網(wǎng)中儲(chǔ)能系統(tǒng)容量大小的選擇以及不同儲(chǔ)能裝置間的配合。最后,本文以 SMES 為例,在 MATLAB 提供的仿真工具 SIMULINK 平臺(tái)下,對(duì)儲(chǔ)能系統(tǒng)在微網(wǎng)中的具體應(yīng)用進(jìn)行了的仿真分析研究。本文進(jìn)行了超導(dǎo)帶材性能試驗(yàn),研究了 SMES 的性能,建立了微網(wǎng)中 SMES 的模型及控制系統(tǒng),對(duì) SMES 改善負(fù)荷端電壓和抑制微網(wǎng)功率振蕩兩個(gè)應(yīng)用途徑進(jìn)行了仿真分析,研究了 SMES 參數(shù)對(duì)其改善電能質(zhì)量的影響,評(píng)估了 SMES 在微網(wǎng)中應(yīng)用的效果,得出了 SMES 可以很好地在微網(wǎng)中發(fā)揮作用的結(jié)論。關(guān)鍵詞:微網(wǎng) 儲(chǔ)能技術(shù) SMES 功率振蕩I華 中 科 技 大 學(xué) 碩 士 學(xué) 位 論 文 ABSTRACTWith the constant progress of material technology and the rapid development of powerelectronic technology, various performance indexes for an energy storage device such as thecapacity, the response speed, the power density and efficiency, etc. have made greatprogress, so the properties of energy storage device gets great improvements. Thedevelopment of modern control theory makes the control of energy storage device easierand more flexible and the application field of energy storage device bees more widely.In this paper, the ways, functions and feasibility of energy storage devices applied inmicrogrid are studied. Firstly, this paper studies the principle and structures of microgrid and summarizestechnical requirements of each part of a microgrid and expounds the significance ofmicrogrid in solving the existing problems of power system. This paper also analyzes theimportantance of energy storage technology in microgrid, and gaves a detailed descriptionof energy storage device applied in microgrid. The present development of energy storagetechnology is introduced and the advantages and disadvantages of various energy storagetechnologies are pared.Secondly, this paper studies the principles and structures of energy storage technologyand sets up unified models of energy storage system based on paring the monpoints of different energy storage devices. This paper studies the applications and feasibilityfor an energy storage system to be used in microgrids as micro power sources and energystorage devices, and gaves the application patterns of energy storage system used inmicrogrid and achieves a conclusion that there is no problem for an energy storage systemto be used in microgrid. This paper designs the correspongding control system and studiescapacity selection of energy storage system in microgrid and matching between differentenergy storage devices.II華 中 科 技 大 學(xué) 碩 士 學(xué) 位 論 文 Finally, taking SMES as an example, the energy storage system applied particularly inmicrogrid is tested by digital simulation in the environment of MATLAB/Simulink. Thispaper tests the properties of superconducting tapes and studies the properties of SMES andbuilds the SMES models and control systems. This paper studies how SMES can improve the voltage at the load terminal and how SMES can inhibit power oscillations in Microgrid by digital simulation. In this paper, the impacts of SMES parameters on Power Qualityimproving are studied, the effect of SMES application in microgrid is evaluated and we geta conclusion that SMES could be used in