本文選題：三相四線制 + 有源電力濾波器��； 參考：《河北工業(yè)大學(xué)》2014年碩士論文

【摘要】：現(xiàn)在我國(guó)主要采用三線四線制供電系統(tǒng)。當(dāng)三相系統(tǒng)平衡時(shí)，流過(guò)零線的電流幾乎為零；當(dāng)三相系統(tǒng)不平衡時(shí)，零線上的電流很大，甚至可能達(dá)到相電流的1.5倍，并且現(xiàn)在的民用負(fù)荷很多都是單相負(fù)載，會(huì)使電網(wǎng)中產(chǎn)生大量的零序諧波分量，在零線上疊加后會(huì)造成零線過(guò)流。零線電流過(guò)大會(huì)造成非常嚴(yán)重的后果，一方面零線導(dǎo)線的橫截面積與相線導(dǎo)線的橫截面積相差不大，一旦流過(guò)零線的電流過(guò)大，必然會(huì)導(dǎo)致零線嚴(yán)重發(fā)熱；另一方面零線上并沒(méi)有安裝自動(dòng)保護(hù)裝置，，當(dāng)流過(guò)零線的電流過(guò)大時(shí)，不能自動(dòng)切除故障線路。 在三相四線制系統(tǒng)中，有源電力濾波器不僅需要補(bǔ)償相序電流還需要補(bǔ)償零序電流，避免因電流過(guò)大而造成火災(zāi)的隱患。三相四線制有源濾波器主要是用來(lái)補(bǔ)償諧波電流，由兩部分構(gòu)成：檢測(cè)環(huán)節(jié)和控制環(huán)節(jié)。檢測(cè)環(huán)節(jié)是指諧波電流的檢測(cè)，即將負(fù)載電流中的諧波電流檢測(cè)出來(lái)�？刂骗h(huán)節(jié)即諧波電流的補(bǔ)償，即將檢測(cè)出的諧波電流值按照一定算法變成控制脈沖信號(hào)，控制逆變器產(chǎn)生與檢測(cè)電流相對(duì)應(yīng)的補(bǔ)償電流，輸送回電網(wǎng)的負(fù)載中。 本文主要重點(diǎn)研究三相四線制三電平有源濾波器的檢測(cè)部分。在matlab/simulink環(huán)境下搭建了三相四線制三電平有源濾波器的數(shù)學(xué)模型，對(duì)基于快速傅里葉變換（FFT）的諧波電流檢測(cè)和基于瞬時(shí)無(wú)功（ip-iq）的諧波電流檢測(cè)方法進(jìn)行研究；引入了直流側(cè)電壓控制（PI）環(huán)節(jié)，控制采用SVPWM方法，實(shí)現(xiàn)整體功能的仿真；在CCS環(huán)境下進(jìn)行有源濾波器的軟件設(shè)計(jì)；以DSP F28335為核心板，設(shè)計(jì)了有源濾波器的硬件電路。
[Abstract]:Now China mainly adopts three-wire and four-wire power supply system. When the three-phase system is balanced, the current passing through the zero line is almost zero; when the three-phase system is unbalanced, the current on the zero line is very large, possibly 1.5 times the current of the phase current, and many of the current civilian loads are single-phase loads. A large number of zero-sequence harmonic components will be generated in the power network, and the superposition of zero lines will result in zero-line overcurrent. On the one hand, the cross section area of zero wire is not different from that of phase line conductor, once the current passing through zero line is too large, it will inevitably lead to serious heating of zero line. On the other hand, no automatic protection device is installed on the zero line. When the current passing through the zero line is too large, the fault line cannot be automatically removed. In the three-phase four-wire system, the active power filter not only needs to compensate the phase-sequence current, but also needs to compensate the zero-sequence current, so as to avoid the hidden danger of fire caused by the excessive current. Three-phase four-wire active filter is mainly used to compensate harmonic current, which consists of two parts: detection and control. Detection is the detection of harmonic current, that is, the detection of harmonic current in the load current. The control link is the compensation of harmonic current, which changes the detected harmonic current into a control pulse signal according to a certain algorithm, and controls the inverter to generate the compensation current corresponding to the detection current, which is transported back to the load of the power network. This paper focuses on the three-phase four-wire three-level active filter detection. The mathematical model of three-phase four-wire three-level active filter is built in matlab/simulink environment. The methods of harmonic current detection based on fast Fourier transform (FFT) and harmonic current detection based on instantaneous reactive power (ip-iq) are studied. The DC side voltage control (Pi) link is introduced, SVPWM method is used to realize the simulation of the whole function, the active power filter software is designed in CCS environment, and the hardware circuit of the active power filter is designed with DSP F28335 as the core board.
【學(xué)位授予單位】：河北工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TN713.8;TM761

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 卓放,楊君,胡軍飛,王兆安;三相四線制有源電力濾波器主電路的結(jié)構(gòu)形式與控制[J];電工電能新技術(shù);2000年02期

2 楊君，王兆安;三相電路諧波電流兩種檢測(cè)方法的對(duì)比研究[J];電工技術(shù)學(xué)報(bào);1995年02期

3 李國(guó)欣;古喻旭;趙雅囡;王振環(huán);;新型三電平三相四線制有源濾波器的設(shè)計(jì)[J];電氣應(yīng)用;2010年24期

4 顧建軍,徐殿國(guó),劉漢奎,公茂忠;有源濾波技術(shù)現(xiàn)狀及其發(fā)展[J];電機(jī)與控制學(xué)報(bào);2003年02期

5 張毅;張波;丘東元;;有源電力濾波器的實(shí)時(shí)諧波檢測(cè)方法[J];電力電子;2007年04期

6 楊君，王兆安，邱關(guān)源;并聯(lián)型電力有源濾波器直流側(cè)電壓的控制[J];電力電子技術(shù);1996年04期

7 鄧占鋒,朱東起,姜新建;三相四線制下中線諧波電流治理的新方法[J];電力系統(tǒng)自動(dòng)化;2002年08期

8 王軍華;李建貴;汪友華;;混合型有源電力濾波器研究現(xiàn)狀與發(fā)展趨勢(shì)[J];電氣傳動(dòng);2007年12期

9 張培遠(yuǎn);黃落成;;預(yù)測(cè)電流控制在三電平三相四橋臂有源電力濾波器中的應(yīng)用[J];低壓電器;2012年10期

10 廖宇;郭黎;;基于MATLAB的數(shù)字濾波器的設(shè)計(jì)[J];高科技與產(chǎn)業(yè)化;2008年09期

相關(guān)博士學(xué)位論文 前2條

1 唐蕾;有源電力濾波器及其在電氣化鐵道電能質(zhì)量控制中的應(yīng)用[D];西南交通大學(xué);2008年

2 唐健;三相四線制三電平三橋臂APF關(guān)鍵技術(shù)及其控制研究[D];華中科技大學(xué);2010年

本文編號(hào)：2100609