本文關(guān)鍵詞： 有源電力濾波 三相三線 雙同步解耦鎖相 SVPWM DSP處理器　出處：《西南交通大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：面對(duì)大量非線性負(fù)載及電力電子變流器設(shè)備和其他諧波源帶來(lái)的對(duì)電網(wǎng)越來(lái)越廣泛的諧波污染,采用有源電力濾波器(Active Power Filter APF)抑制諧波必將是今后諧波治理的一個(gè)重要的發(fā)展方向。有源電力濾波器具有動(dòng)態(tài)性能好,能夠靈活的根據(jù)諧波源狀態(tài)自動(dòng)調(diào)整等優(yōu)點(diǎn),在電能質(zhì)量調(diào)節(jié)方面具有很廣闊的應(yīng)用前景。隨著理論研究的進(jìn)一步深入,電力電子器件容量和開(kāi)關(guān)頻率的進(jìn)一步提高以及數(shù)字信號(hào)處理器運(yùn)算能力進(jìn)一步增強(qiáng),有源電力濾波器的容量及實(shí)時(shí)補(bǔ)償實(shí)時(shí)性將進(jìn)一步得到提高。本文主要對(duì)三相三線并聯(lián)型有源電力濾波器的諧波檢測(cè)算法及其控制策略從以下幾個(gè)方面進(jìn)行了探討、分析和研究：首先,對(duì)諧波問(wèn)題及其抑制措施進(jìn)行了簡(jiǎn)要介紹,指出了有源電力濾波器對(duì)諧波抑制及電能質(zhì)量提高的重要意義。介紹了目前常用的有源電力濾波器的基本原理、常見(jiàn)結(jié)構(gòu)、諧波檢測(cè)方法、電流跟蹤控制策略及其應(yīng)用場(chǎng)合。分析發(fā)現(xiàn)三相三線并聯(lián)型有源電力濾波器有著更普遍的適用性和良好的應(yīng)用前景。其次,深入研究了由瞬時(shí)無(wú)功功率理論衍生出的pq法和ip-iq兩種諧波檢測(cè)算法,對(duì)兩種方法的諧波檢測(cè)效果進(jìn)行了對(duì)比。分析發(fā)現(xiàn)當(dāng)電壓畸變的時(shí)候pq法存在的誤差和不足以及此時(shí)ip-iq法表現(xiàn)出的的優(yōu)點(diǎn),指出了鎖相環(huán)是避免電壓畸變導(dǎo)致諧波檢測(cè)誤差的關(guān)鍵。為此對(duì)鎖相環(huán)進(jìn)行了深入研究,簡(jiǎn)要介紹了幾種常用的鎖相環(huán)。對(duì)典型的基于單同步坐標(biāo)的三相鎖相環(huán)進(jìn)行了深入研究,指出其在三相電壓畸變不平衡時(shí)的誤差和不足,為此引入了基于雙同步坐標(biāo)解耦的三相鎖相環(huán),并從新的角度對(duì)其解耦策略進(jìn)行了推導(dǎo)。再次,建立了三相三線并聯(lián)型APF的數(shù)學(xué)模型,據(jù)此給出其控制策略。對(duì)常用的滯環(huán)控制、三角載波控制、SVPWM三種電流跟蹤控制策略進(jìn)行了對(duì)比仿真分析,并對(duì)SVPWM的數(shù)字化編程實(shí)現(xiàn)進(jìn)行了詳細(xì)推導(dǎo)。對(duì)APF主電路參數(shù)對(duì)補(bǔ)償效果的影響進(jìn)行了分析,并給出了一種主電路設(shè)計(jì)的方法和控制電路的軟硬件設(shè)計(jì)方案。最后,根據(jù)主電路設(shè)計(jì)方法和控制電路的軟硬件設(shè)計(jì)方案,搭建了實(shí)驗(yàn)樣機(jī)進(jìn)行實(shí)驗(yàn),在TMS320F2812數(shù)字信號(hào)處理器中通過(guò)C語(yǔ)言編程實(shí)現(xiàn)了諧波檢測(cè)算法及SVPWM算法。
[Abstract]:In the face of a large number of nonlinear loads and power electronic converter equipment and other harmonic sources to bring more and more widespread harmonic pollution to the power grid. Active Power Filter APF). Harmonic suppression will be an important development direction of harmonic control in the future. Active power filter has good dynamic performance. Can flexibly adjust according to the harmonic source state and other advantages, in the power quality regulation has a very broad application prospects. With the further study of the theory. The capacity and switching frequency of power electronic devices are further improved and the computing power of digital signal processor is further enhanced. The capacity and real-time compensation of active power filter will be further improved. This paper mainly discusses the harmonic detection algorithm and control strategy of three-phase three-wire shunt active power filter from the following aspects. Beg. Analysis and research: first of all, the harmonic problem and its suppression measures are briefly introduced. The significance of active power filter to harmonic suppression and power quality improvement is pointed out. The basic principle, common structure and harmonic detection method of active power filter are introduced. Current tracking control strategy and its applications. The analysis of three-phase three-wire shunt active power filter has more general applicability and good application prospects. Secondly. Two harmonic detection algorithms, namely, PQ method and ip-iq, derived from instantaneous reactive power theory, are studied in depth. The harmonic detection results of the two methods are compared. It is found that when the voltage is distorted, the error and deficiency of the PQ method and the advantages of the ip-iq method at this time are also found. It is pointed out that PLL is the key to avoid harmonic detection error caused by voltage distortion. Several commonly used phase-locked loops are briefly introduced. The typical three-phase phase-locked loops based on single synchronous coordinates are deeply studied, and their errors and shortcomings in unbalanced three-phase voltage distortion are pointed out. For this reason, a three-phase phase-locked loop based on double synchronous coordinate decoupling is introduced, and its decoupling strategy is deduced from a new angle. Thirdly, the mathematical model of three-phase three-wire parallel APF is established. According to this, the control strategy is given, and three common current tracking control strategies, hysteresis control and triangular carrier control, SVPWM, are compared and analyzed. The realization of digital programming of SVPWM is deduced in detail, and the effect of main circuit parameters of APF on compensation effect is analyzed. At last, according to the main circuit design method and the control circuit hardware and software design scheme, the experiment prototype is built. Harmonic detection algorithm and SVPWM algorithm are realized by C language programming in TMS320F2812 digital signal processor.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TM761;TN713.8

【參考文獻(xiàn)】

相關(guān)期刊論文 前9條

1 許婭;供電系統(tǒng)中諧波產(chǎn)生原因及限制措施[J];安徽水利水電職業(yè)技術(shù)學(xué)院學(xué)報(bào);2003年02期

2 童梅,童杰,蔣靜坪;有源濾波器的神經(jīng)網(wǎng)絡(luò)控制[J];電工技術(shù)學(xué)報(bào);2000年01期

3 龔錦霞;解大;張延遲;;三相數(shù)字鎖相環(huán)的原理及性能[J];電工技術(shù)學(xué)報(bào);2009年10期

4 全恒立;劉志剛;張鋼;吳佐民;;并聯(lián)型有源濾波器主電路關(guān)鍵參數(shù)設(shè)計(jì)[J];電工技術(shù)學(xué)報(bào);2011年12期

5 李承,鄒云屏;串聯(lián)型有源電力濾波器的單周控制方法[J];電力系統(tǒng)自動(dòng)化;2005年15期

6 侯世英;鄭含博;周雒維;江澤佳;;基于單周控制的三相直流側(cè)串聯(lián)型有源電力濾波器[J];電網(wǎng)技術(shù);2008年18期

7 林海雪;;幾種國(guó)外諧波電壓標(biāo)準(zhǔn)的分析[J];供用電;2008年03期

8 杜廣宇,陳小橋,萬(wàn)中田;鎖相倍頻和準(zhǔn)同步采樣法在諧波測(cè)量中的應(yīng)用[J];武漢大學(xué)學(xué)報(bào)(工學(xué)版);2001年05期

9 王東,馬偉明,顧偉峰,肖飛,張波濤;12/3相雙繞組感應(yīng)發(fā)電機(jī)的諧波不對(duì)稱分析[J];中國(guó)電機(jī)工程學(xué)報(bào);2004年05期

相關(guān)博士學(xué)位論文 前1條

1 黎霞;低壓配電網(wǎng)有源電力濾波器諧波檢測(cè)與控制策略研究[D];河北工業(yè)大學(xué);2013年

，

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