本文關(guān)鍵詞：微電網(wǎng)并入對(duì)電網(wǎng)諧波的影響及濾除策略的研究　出處：《遼寧工業(yè)大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

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【摘要】：世界經(jīng)濟(jì)的不斷發(fā)展加大了人們對(duì)于電力能源的需求，而隨之而來的能源的日漸枯竭和生態(tài)環(huán)境的污染嚴(yán)重等現(xiàn)象成為世界性難題。微電網(wǎng)的形成給世界帶來了新的發(fā)展方向，新的發(fā)展理念。然而微電網(wǎng)中大量電力電子裝置在工作的同時(shí)也產(chǎn)生了大量諧波，影響著大電網(wǎng)的電能質(zhì)量和安全運(yùn)行，因此深入研究微電網(wǎng)并網(wǎng)產(chǎn)生的諧波問題具有十分重要的意義。 首先，依據(jù)諧波的基本概念，對(duì)常見諧波源進(jìn)行分類研究，分別對(duì)單相全控整流器、三相整流器電弧型負(fù)載、并聯(lián)電容器等諧波源產(chǎn)生的諧波的原因進(jìn)行了深入的分析與研究，并提出了諧波對(duì)于電力系統(tǒng)的危害性。 其次，對(duì)微電網(wǎng)中光伏發(fā)電和風(fēng)力發(fā)電這兩個(gè)主流發(fā)電系統(tǒng)的構(gòu)成特點(diǎn)展開了研究，為微電網(wǎng)諧波的分析建立了理論基礎(chǔ)，，并分別對(duì)光伏發(fā)電系統(tǒng)和風(fēng)力發(fā)電系統(tǒng)諧波產(chǎn)生的原因進(jìn)行深入分析和研究。以電網(wǎng)中諧波產(chǎn)生原因?yàn)橐罁?jù)，建立模型，深入研究和分析負(fù)載諧波源對(duì)電網(wǎng)諧波的影響；再以微電網(wǎng)諧波產(chǎn)生的原因?yàn)橐罁?jù)建立微電網(wǎng)接入時(shí)的模型，深入研究和分析有非線性分布式電源接入時(shí)對(duì)電網(wǎng)諧波的影響。并通過遼寧工業(yè)大學(xué)微電網(wǎng)實(shí)驗(yàn)室進(jìn)行相關(guān)諧波實(shí)驗(yàn)，用實(shí)際測(cè)得的實(shí)驗(yàn)數(shù)據(jù)驗(yàn)證理論分析的結(jié)果。 最后，本文依據(jù)微電網(wǎng)的諧波對(duì)電網(wǎng)諧波的影響的分析與研究，提出了改進(jìn)的微電網(wǎng)諧波抑制方案。對(duì)改進(jìn)的抑制方案進(jìn)行仿真分析，通過分析仿真結(jié)果得出改進(jìn)的諧波濾除方案與傳統(tǒng)諧波濾除方法相比可以將更多的諧波濾除，濾波效果更明顯。
[Abstract]:The continuous development of the world economy has increased the demand for power, and the consequent energy exhaustion and environment pollution phenomenon becomes a worldwide problem. The micro grid is formed to bring new development direction of world development, the new concept of micro grid. However, a large number of power electronic devices in the work at the same time have a large number of harmonics, affect the large power quality and safe operation, therefore it is of great significance to further study the harmonic problems of micro grid.
First of all, based on the basic concept of harmonic, the classification of common harmonics, respectively for single-phase full controlled rectifier and three-phase rectifier arc type load, harmonic parallel capacitor and harmonic generated by the in-depth analysis and research, and put forward the harmonic danger for the power system.
Secondly, the micro grid photovoltaic power generation and wind power generation characteristics of the two major power generation system has been studied and established the theoretical foundation for the analysis of micro power harmonic, and the harmonic are photovoltaic systems and wind power generation system and the in-depth analysis and research. The harmonic cause model based on in-depth research and analysis, influence of harmonic source of power harmonic; causes produced by micro grid harmonic was set up on the basis of micro grid access model, influence on the harmonic of in-depth research and analysis of nonlinear distributed power source access. And through the Liaoning University of Technology micro grid Laboratory for the harmonic analysis by experiment. The theory of experimental data, the actual measured results.
Finally, analysis and Research on the influence of micro grid harmonic of power harmonic based, proposed microgrid harmonic suppression scheme is improved. The simulation analysis of suppression scheme is improved, through the analysis of simulation results show that the improved scheme of harmonic filtering and filtering method can be compared with the traditional harmonic harmonic filtering more, filtering effect is more obvious.

【學(xué)位授予單位】：遼寧工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM711

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