模塊化三電平有源濾波器控制策略與裝置研究
發(fā)布時(shí)間：2018-08-19 19:07
【摘要】：應(yīng)用于實(shí)際工業(yè)中的電力電子裝置會(huì)對(duì)電網(wǎng)產(chǎn)生諧波電流,通常采用有源濾波器抑制這種諧波電流對(duì)電網(wǎng)的污染。在高壓大功率場(chǎng)合,三電平有源濾波器由于自身結(jié)構(gòu)上的特點(diǎn)比傳統(tǒng)兩電平有源濾波器應(yīng)用前景更大。論文以三相三線制的二極管箝位型三電平有源濾波器作為研究對(duì)象,研究其關(guān)鍵的控制策略并對(duì)相關(guān)裝置進(jìn)行軟硬件設(shè)計(jì)。 三電平有源濾波器的數(shù)學(xué)模型是有源濾波器控制策略設(shè)計(jì)的基礎(chǔ)。本文介紹了三電平有源濾波器的工作原理,推導(dǎo)出在不同控制目標(biāo)時(shí)參考指令電流的構(gòu)成,基于三電平有源濾波器主電路拓?fù)浣Y(jié)構(gòu),建立了三電平有源濾波器在dq坐標(biāo)系下的數(shù)學(xué)模型,并推導(dǎo)出系統(tǒng)的交流小信號(hào)模型。 三電平SVPWM調(diào)制及中點(diǎn)電位平衡控制是保證三電平有源濾波器正常工作的前提。本文米用參考矢量分解的萬(wàn)法,給出了三電平有源濾波器SVPWM的調(diào)制算法,分析了三電平各矢量對(duì)中點(diǎn)電位的影響,根據(jù)電荷平衡原理提出了一種簡(jiǎn)單的基于時(shí)間因子的中點(diǎn)電位平衡控制策略,用以控制直流側(cè)電容電位的不平衡。 電流跟蹤制策略是決定三電平有源濾波器補(bǔ)償效果的關(guān)鍵因素。針對(duì)三電平有源濾波器的控制目標(biāo),本文根據(jù)瞬時(shí)無(wú)功功率理論,對(duì)ip-iq諧波電流檢測(cè)方法進(jìn)行了詳細(xì)分析,以保證參考指令電流提取的快速性和準(zhǔn)確性；在三電平有源濾波器數(shù)學(xué)模型的基礎(chǔ)上,推導(dǎo)出三電平有源濾波器的前饋解耦PI控制、參考指令預(yù)測(cè)電流控制、無(wú)差拍控制和滑模控制的控制方程,并對(duì)三電平有源濾波器的各種控制策略進(jìn)行了仿真驗(yàn)證。 模塊并聯(lián)控制策略是三電平有源濾波器實(shí)現(xiàn)擴(kuò)容的核心技術(shù)。本文對(duì)模塊集中控制、模塊主從控制和模塊分布控制這三種并聯(lián)控制方式進(jìn)行了分析,并對(duì)模塊分布控制的2種方案進(jìn)行了仿真。 為比較多種電流跟蹤控制策略的性能,本文在AppSIM半實(shí)物仿真系統(tǒng)上分別搭建前饋解耦PI控制、參考指令預(yù)測(cè)電流控制、無(wú)差拍控制和滑�？刂频娜娖接性礊V波器半實(shí)物仿真模型,對(duì)實(shí)驗(yàn)結(jié)果進(jìn)行對(duì)比與分析,歸納每種電流跟蹤控制策略的特點(diǎn)；在無(wú)差拍電流控制策略下,通過(guò)對(duì)比是否加入中點(diǎn)電位平衡控制的實(shí)驗(yàn),驗(yàn)證了中點(diǎn)平衡控制的有效性。 本文設(shè)計(jì)了模塊化三電平有源濾波器裝置,完成了裝置的結(jié)構(gòu)設(shè)計(jì)和主電路參數(shù)設(shè)計(jì),基于理論推導(dǎo)及仿真結(jié)果選擇了直流側(cè)電容參數(shù)、交流側(cè)輸出濾波器電感參數(shù)以及預(yù)充電電阻參數(shù)；同時(shí)還完成了基于DSP+FPGA的控制板設(shè)計(jì)。最后在實(shí)驗(yàn)平臺(tái)上,完成了基于無(wú)差拍控制策略及三電平中點(diǎn)電位平衡控制策略的DSP與FPGA程序,驗(yàn)證了實(shí)驗(yàn)硬件平臺(tái)設(shè)計(jì)的合理性及控制策略的有效性。
[Abstract]:Power electronic devices used in practical industry will produce harmonic current to the power network. Active power filter is usually used to suppress the harmonic current pollution to the power network. In high-voltage and high-power situations, three-level active filter has more application prospect than traditional two-level active filter because of its own characteristics. In this paper, three-phase three-wire diode clamped three-level active filter is taken as the research object, the key control strategy is studied and the hardware and software of the related device are designed. The mathematical model of three-level active filter is the basis of active filter control strategy design. In this paper, the working principle of three-level active filter is introduced, and the configuration of reference instruction current in different control targets is deduced, based on the main circuit topology of three-level active power filter. The mathematical model of three-level active filter in dq coordinate system is established, and the AC small-signal model of the system is derived. Three-level SVPWM modulation and neutral-point potential balance control are the prerequisites to ensure the normal operation of the three-level active filter. In this paper, the modulation algorithm of three-level active power filter (SVPWM) is presented by using the universal method of reference vector decomposition, and the effect of three-level vector on the neutral point potential is analyzed. According to the principle of charge balance, a simple control strategy of midpoint potential balance based on time factor is proposed to control the unbalance of capacitance potential on the DC side. Current tracking strategy is the key factor to determine the compensation effect of three-level active filter. Aiming at the control target of three-level active power filter, this paper analyzes the harmonic current detection method of ip-iq in detail according to instantaneous reactive power theory, in order to ensure the speed and accuracy of reference instruction current extraction. Based on the mathematical model of three-level active filter, the control equations of feedforward decoupling Pi control, reference instruction predictive current control, deadbeat control and sliding mode control are derived. Various control strategies of three-level active filter are simulated and verified. Modular parallel control strategy is the core technology of three-level active filter expansion. In this paper, three parallel control modes, namely, centralized control, master-slave control and distributed control, are analyzed, and two schemes of distributed control are simulated. In order to compare the performance of various current tracking control strategies, feedforward decoupling Pi control and predictive current control with reference instructions are built in the AppSIM hardware-in-the-loop simulation system. The hardware-in-the-loop simulation model of three-level active filter based on deadbeat control and sliding mode control is compared and analyzed, and the characteristics of each current tracking control strategy are summarized. The effectiveness of the midpoint balance control is verified by comparing whether the midpoint potential balance control is added or not. In this paper, a modularized three-level active filter device is designed, the structure of the device and the main circuit parameters are designed. Based on the theoretical derivation and simulation results, the DC side capacitance parameters are selected. The inductance parameters and precharge resistance parameters of AC side output filter and the design of control board based on DSP FPGA are also completed. Finally, the DSP and FPGA programs based on the non-beat control strategy and the three-level neutral-point potential balance control strategy are completed on the experimental platform, which verifies the rationality of the hardware platform design and the effectiveness of the control strategy.
【學(xué)位授予單位】：北方工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：TN713.8;TM761
本文編號(hào)：2192542
[Abstract]:Power electronic devices used in practical industry will produce harmonic current to the power network. Active power filter is usually used to suppress the harmonic current pollution to the power network. In high-voltage and high-power situations, three-level active filter has more application prospect than traditional two-level active filter because of its own characteristics. In this paper, three-phase three-wire diode clamped three-level active filter is taken as the research object, the key control strategy is studied and the hardware and software of the related device are designed. The mathematical model of three-level active filter is the basis of active filter control strategy design. In this paper, the working principle of three-level active filter is introduced, and the configuration of reference instruction current in different control targets is deduced, based on the main circuit topology of three-level active power filter. The mathematical model of three-level active filter in dq coordinate system is established, and the AC small-signal model of the system is derived. Three-level SVPWM modulation and neutral-point potential balance control are the prerequisites to ensure the normal operation of the three-level active filter. In this paper, the modulation algorithm of three-level active power filter (SVPWM) is presented by using the universal method of reference vector decomposition, and the effect of three-level vector on the neutral point potential is analyzed. According to the principle of charge balance, a simple control strategy of midpoint potential balance based on time factor is proposed to control the unbalance of capacitance potential on the DC side. Current tracking strategy is the key factor to determine the compensation effect of three-level active filter. Aiming at the control target of three-level active power filter, this paper analyzes the harmonic current detection method of ip-iq in detail according to instantaneous reactive power theory, in order to ensure the speed and accuracy of reference instruction current extraction. Based on the mathematical model of three-level active filter, the control equations of feedforward decoupling Pi control, reference instruction predictive current control, deadbeat control and sliding mode control are derived. Various control strategies of three-level active filter are simulated and verified. Modular parallel control strategy is the core technology of three-level active filter expansion. In this paper, three parallel control modes, namely, centralized control, master-slave control and distributed control, are analyzed, and two schemes of distributed control are simulated. In order to compare the performance of various current tracking control strategies, feedforward decoupling Pi control and predictive current control with reference instructions are built in the AppSIM hardware-in-the-loop simulation system. The hardware-in-the-loop simulation model of three-level active filter based on deadbeat control and sliding mode control is compared and analyzed, and the characteristics of each current tracking control strategy are summarized. The effectiveness of the midpoint balance control is verified by comparing whether the midpoint potential balance control is added or not. In this paper, a modularized three-level active filter device is designed, the structure of the device and the main circuit parameters are designed. Based on the theoretical derivation and simulation results, the DC side capacitance parameters are selected. The inductance parameters and precharge resistance parameters of AC side output filter and the design of control board based on DSP FPGA are also completed. Finally, the DSP and FPGA programs based on the non-beat control strategy and the three-level neutral-point potential balance control strategy are completed on the experimental platform, which verifies the rationality of the hardware platform design and the effectiveness of the control strategy.
【學(xué)位授予單位】：北方工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：TN713.8;TM761
【參考文獻(xiàn)】
相關(guān)期刊論文 前10條
1 俞年昌;楊家強(qiáng);;三電平APF的LCL濾波器設(shè)計(jì)和分析研究[J];機(jī)電工程;2014年05期
2 許春雨;周娟;;預(yù)測(cè)電流閉環(huán)控制方法的研究[J];電氣傳動(dòng);2013年12期
3 周京華;賈斌;章小衛(wèi);陳亞愛(ài);;混合式三電平中點(diǎn)電位平衡控制策略[J];中國(guó)電機(jī)工程學(xué)報(bào);2013年24期
4 徐長(zhǎng)波;魯偉;李春文;;大容量并聯(lián)有源電力濾波器的模塊化控制策略[J];電力系統(tǒng)自動(dòng)化;2013年08期
5 袁浩悅;曹以龍;;有源電力濾波器的諧波檢測(cè)研究[J];電力電容器與無(wú)功補(bǔ)償;2012年05期
6 許彥;馮宇;張曉;李德路;;有源電力濾波器的前饋解耦控制策略研究[J];電測(cè)與儀表;2012年09期
7 梁旭東;朱良合;鄒云屏;;基于三電平APF的新型無(wú)差拍控制器研究[J];船電技術(shù);2012年02期
8 武健;馬驍;侯睿;徐殿國(guó);;基于遺傳算法的有源濾波器LCL輸出濾波器優(yōu)化設(shè)計(jì)[J];電工技術(shù)學(xué)報(bào);2011年05期
9 孫華;張曉;孔令軍;李成君;;三電平APF直流側(cè)電容電壓控制研究[J];電力電子技術(shù);2011年05期
10 李東旭;;基于DSP三相四線制有源電力濾波的研究[J];電力科學(xué)與工程;2010年06期
相關(guān)博士學(xué)位論文 前4條
1 張曉;三電平有源濾波器關(guān)鍵技術(shù)研究[D];中國(guó)礦業(yè)大學(xué);2012年
2 曾繁鵬;多電平有源電力濾波器拓?fù)浣Y(jié)構(gòu)及控制方法研究[D];哈爾濱工業(yè)大學(xué);2010年
3 鞠建永;并聯(lián)有源電力濾波器工程應(yīng)用關(guān)鍵技術(shù)的研究[D];浙江大學(xué);2009年
4 吳勇;有源電力濾波器若干關(guān)鍵技術(shù)研究[D];華中科技大學(xué);2007年
相關(guān)碩士學(xué)位論文 前1條
1 黃智昊;三電平有源濾波器控制策略研究[D];哈爾濱工業(yè)大學(xué);2013年
，本文編號(hào)：2192542
本文鏈接：http://sikaile.net/kejilunwen/dianzigongchenglunwen/2192542.html
最近更新
教材專著
