本文選題：中高壓 + H橋級(jí)聯(lián)型有源電力濾波器��； 參考：《湖南大學(xué)》2014年碩士論文

【摘要】：工業(yè)企業(yè)配電網(wǎng)中電力電子裝置的廣泛應(yīng)用帶來了電能質(zhì)量問題，有源電力濾波器由于在無功補(bǔ)償和諧波抑制方面具有良好的動(dòng)態(tài)性能成為了諧波治理的有效方式。傳統(tǒng)的低壓有源電力濾波器受功率開關(guān)管承受電壓等級(jí)的限制，無法直接應(yīng)用于中高壓配電網(wǎng)。因此有必要研究應(yīng)用于中高壓配電網(wǎng)的有源濾波器拓?fù)�，調(diào)制方法以及控制策略。 本文首先分析了變壓器低壓側(cè)接并聯(lián)型有源電力濾波器，并聯(lián)混合型有源電力濾波器以及多電平有源電力濾波器等幾類應(yīng)用于中高壓場(chǎng)合的典型拓?fù)浣Y(jié)構(gòu)，從控制和實(shí)用的角度對(duì)比了這幾類拓?fù)浣Y(jié)構(gòu)存在的優(yōu)缺點(diǎn)，選擇了三角型連接的H橋級(jí)聯(lián)型有源電力濾波器作為本文研究的內(nèi)容。 接著，研究了適用于H橋級(jí)聯(lián)有源電力濾波器的調(diào)制策略，詳述了雙極性SPWM調(diào)制和單極倍頻調(diào)制原理，從這兩種調(diào)制策略對(duì)單個(gè)H橋輸出電壓和級(jí)聯(lián)疊加輸出電壓的數(shù)學(xué)表達(dá)式定量分析了基波放大倍數(shù)、最低諧波群分布、等效開關(guān)頻率，并通過仿真驗(yàn)證了理論分析的正確性。從而選擇了具有優(yōu)良諧波特性的半周期移相單極倍頻載波SPWM調(diào)制策略。 然后，針對(duì)諧波檢測(cè)、直流側(cè)穩(wěn)壓控制、電流跟蹤控制三方面深入研究了H橋級(jí)聯(lián)型有源電力濾波器的控制策略。介紹了兩類常用的諧波檢測(cè)算法，基于傅立葉級(jí)數(shù)檢測(cè)算法和基于瞬時(shí)無功功率的檢測(cè)算法。分析了H橋級(jí)聯(lián)型有源電力濾波器電容電壓不平衡機(jī)理，提出了總電壓控制和電容電壓平衡策略。重點(diǎn)研究了無差拍控制和準(zhǔn)PR控制兩種電流跟蹤控制策略設(shè)計(jì)，深入探討了準(zhǔn)PR參數(shù)對(duì)跟蹤性能和穩(wěn)態(tài)性能的影響，給出了合理的準(zhǔn)PR控制參數(shù)，仿真結(jié)果表明準(zhǔn)PR能夠?qū)崿F(xiàn)對(duì)指令電流零穩(wěn)態(tài)誤差的跟蹤，，比無差拍控制具有更好的跟蹤性能，更好的諧波抑制效果。 最后，對(duì)低壓單相H橋級(jí)聯(lián)型有源電力濾波器進(jìn)行了仿真分析，并對(duì)低壓單相實(shí)驗(yàn)平臺(tái)的主電路、控制電路、軟件等實(shí)現(xiàn)進(jìn)行了詳述。最后在低壓實(shí)驗(yàn)平臺(tái)進(jìn)行了電流跟蹤實(shí)驗(yàn)，實(shí)驗(yàn)結(jié)果證明了硬件電路的合理性和本文所提出的控制策略的有效性。
[Abstract]:The wide application of power electronic devices in industrial distribution network has brought about power quality problems. Active power filter has become an effective way of harmonic treatment because of its good dynamic performance in reactive power compensation and harmonic suppression. The traditional low voltage active power filter (LAPF) can not be directly applied to the medium and high voltage distribution network because of the limitation of the voltage level of the power switch. Therefore, it is necessary to study the topology, modulation method and control strategy of active filter applied in medium and high voltage distribution network. In this paper, the typical topology of transformer low-voltage side-connected shunt active power filter, shunt hybrid active power filter and multi-level active power filter are analyzed. The advantages and disadvantages of these kinds of topologies are compared from the point of view of control and application. The triangular H-bridge cascaded active power filter is chosen as the content of this paper. Then, the modulation strategy suitable for H-bridge cascaded active power filter is studied, and the principles of bipolar SPWM modulation and unipolar frequency-doubling modulation are described in detail. From the mathematical expressions of single H bridge output voltage and cascade superposition output voltage, the fundamental amplifier, the lowest harmonic group distribution and the equivalent switching frequency are quantitatively analyzed by these two modulation strategies, and the correctness of the theoretical analysis is verified by simulation. Thus, the SPWM modulation strategy of semi-periodic phase shift monopole frequency doubling carrier with excellent harmonic characteristics is selected. Then, the control strategy of H-bridge cascaded active power filter is studied in three aspects: harmonic detection, DC side voltage stabilization control and current tracking control. This paper introduces two kinds of harmonic detection algorithms, one is based on Fourier series and the other is based on instantaneous reactive power. The mechanism of capacitance voltage imbalance of H-bridge cascaded active power filter is analyzed, and the strategy of total voltage control and capacitor voltage balance is proposed. Two kinds of current tracking control strategies are studied in detail. The effects of quasi-PR parameters on tracking performance and steady-state performance are discussed, and reasonable quasi-PR control parameters are given. Simulation results show that quasi PR can track zero steady state error of instruction current, which has better tracking performance and better harmonic suppression effect than non beat control. Finally, the simulation analysis of the cascaded low-voltage single-phase H-bridge active power filter is carried out, and the main circuit, control circuit and software implementation of the low-voltage single-phase experimental platform are described in detail. Finally, the current tracking experiment is carried out on the low voltage experimental platform. The experimental results prove the rationality of the hardware circuit and the effectiveness of the control strategy proposed in this paper.
【學(xué)位授予單位】：湖南大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM761;TN713.8

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 王庚,李永東,游小杰;級(jí)聯(lián)式并聯(lián)有源電力濾波器的控制[J];電工電能新技術(shù);2004年04期

2 王立喬;鄔偉揚(yáng);;錯(cuò)時(shí)采樣空間矢量調(diào)制的級(jí)聯(lián)型多電平變流器及其在并聯(lián)有源電力濾波器中的應(yīng)用[J];電工技術(shù)學(xué)報(bào);2006年12期

3 何志明;廖勇;向大為;;基于改進(jìn)層疊式可編程低通濾波器的磁鏈觀測(cè)方法[J];電工技術(shù)學(xué)報(bào);2008年04期

4 帥智康;羅安;涂春鳴;湯賜;孫賢大;;注入式混合型有源電力濾波器在工程中的應(yīng)用[J];電工技術(shù)學(xué)報(bào);2008年05期

5 周柯;羅安;夏向陽;趙偉;;大功率有源濾波器直流側(cè)電容設(shè)計(jì)與電壓控制[J];電力電子技術(shù);2007年04期

6 何英杰;鄒云屏;劉飛;林磊;王成智;;二極管鉗位型多電平有源電力濾波器的仿真[J];電力系統(tǒng)自動(dòng)化;2006年10期

7 張林利,王廣柱;一種基于人工神經(jīng)網(wǎng)絡(luò)的諧波測(cè)量新方法[J];電力系統(tǒng)及其自動(dòng)化學(xué)報(bào);2004年02期

8 湯鈺鵬,徐建軍;高次諧波產(chǎn)生的原因、危害及其抑制措施[J];電氣傳動(dòng)自動(dòng)化;2000年01期

9 何英杰;王兆安;劉進(jìn)軍;鄒云屏;;中高壓電網(wǎng)有源電力濾波器拓?fù)浣Y(jié)構(gòu)對(duì)比分析[J];電氣傳動(dòng);2010年02期

10 何英杰;鄒云屏;黃柱;張玉成;;基于瞬時(shí)無功功率理論的改進(jìn)諧波檢測(cè)算法[J];電網(wǎng)技術(shù);2007年06期

相關(guān)博士學(xué)位論文 前2條

1 漆銘鈞;注入式混合型有源電力濾波器關(guān)鍵技術(shù)研究及其工程實(shí)現(xiàn)[D];湖南大學(xué);2010年

2 苗長新;中壓級(jí)聯(lián)型多電平STATCOM關(guān)鍵技術(shù)研究[D];中國礦業(yè)大學(xué);2012年

本文編號(hào)：1844606