本文選題：諧波抑制 + 無源濾波器　； 參考：《河北工業(yè)大學》2015年碩士論文

【摘要】：隨著各類非線性電力電子裝置在工業(yè)及人民日常生活中的廣泛應用,電力系統(tǒng)中的諧波污染問題日益嚴重,電能質(zhì)量受到很大影響。無源電力濾波器(Passive Filter,PF)是目前應用較為廣泛的抑制諧波的主要手段,但存在一些不可避免的缺點。有源電力濾波器(Active Power Filter,APF)是一種補償諧波電流和無功功率的現(xiàn)代電力電子設備,具有很好的動態(tài)補償性能,跟無源濾波器相比有許多優(yōu)點,但是也存在補償容量小、價格成本高的缺點。本文從有源濾波器的基本原理出發(fā),結(jié)合PF和APF的特性,提出了混合型有源電力濾波器(Hybrid Active Power Filter,HAPF),取兩者之長,補兩者之短,既減少了諧波補償裝置的前期投資,又提高了裝置的性價比,達到實用化的目的。本文在分析傳統(tǒng)并聯(lián)混合型有源電力濾波器的基礎上,嘗試了一種串聯(lián)諧振注入式HAPF的分析研究,并詳細研究其建模、參數(shù)設計及系統(tǒng)控制等關(guān)鍵技術(shù)。通過該濾波器的無源部分承擔主要的諧波補償工作,有源部分僅濾除剩余的電網(wǎng)的高次諧波以改善系統(tǒng)的濾波性能,HAPF有效地減小了系統(tǒng)容量和APF的耐壓等級。在諧波分析的基礎上,本文重點研究了基于內(nèi)模原理的重復控制理論,并提出了將PI控制嵌入重復控制器內(nèi),組成復合型控制方法應用于HAPF的電流跟蹤控制電路,使系統(tǒng)有效降低諧波畸變率。最后,在Matlab/Simulink環(huán)境下建立了有源電力濾波器系統(tǒng)模型,并對諧波檢測及電流跟蹤控制進行了仿真分析,仿真結(jié)果驗證了本文所提復合型重復PI控制方法的優(yōu)越性。
[Abstract]:With the wide application of all kinds of nonlinear power electronic devices in industry and people's daily life, the problem of harmonic pollution in the power system is becoming more and more serious, and the power quality is greatly affected. Passive Filter (PF) is the main means to suppress harmonics, but there are some unavoidable defects. Active Power Filter (APF) is a modern power electronic device that compensates harmonic current and reactive power. It has good dynamic compensation performance. Compared with passive filter, it has many advantages, but it also has the disadvantages of small compensation capacity and high price cost. This paper is based on the basic principle of active filter. In accordance with the characteristics of PF and APF, a hybrid active power filter (Hybrid Active Power Filter, HAPF) is proposed to take both the length of the two and the short of the two. It not only reduces the initial investment of the harmonic compensation device, but also improves the cost performance of the device, and achieves the purpose of practicality. This paper is based on the analysis of the traditional parallel hybrid active power filter. The analysis and research of a series resonant injection type HAPF is tried, and the key technologies such as modeling, parameter design and system control are studied in detail. Through the passive part of the filter, the main harmonic compensation work is carried out. The active part only filters the high order harmonics of the remaining power grid to improve the filtering performance of the system, and the HAPF effectively reduces the system. On the basis of harmonic analysis, on the basis of harmonic analysis, this paper focuses on the theory of repetitive control based on the internal model principle, and puts forward a current tracking control circuit for the application of a compound control method to HAPF by embedding PI control into the repetitive controller, so that the system can effectively reduce the harmonic distortion rate. Finally, in Matlab/Simulink, the system can reduce the harmonic distortion rate. The active power filter system model is set up in the environment, and the harmonic detection and current tracking control are simulated. The simulation results verify the superiority of the proposed compound PI control method.

【學位授予單位】：河北工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TM761;TN713.8

【參考文獻】

相關(guān)期刊論文 前1條

1 李翠艷,張東純,莊顯義;重復控制綜述[J];電機與控制學報;2005年01期

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本文編號：1869881