本文選題：三電平有源電力濾波器 + 諧波檢測　； 參考：《哈爾濱理工大學(xué)》2017年碩士論文

【摘要】：隨著科技的進(jìn)步,電力電子技術(shù)得到了廣泛的應(yīng)用,大量非線性負(fù)載接入電網(wǎng)中帶來了諧波污染,影響電網(wǎng)的電能質(zhì)量。有源電力濾波器(Active Power Filter,APF)作為一種能夠?qū)崿F(xiàn)諧波動態(tài)補(bǔ)償、改善電能質(zhì)量的裝置,逐漸得到了廣泛的關(guān)注。本文以三電平APF的原理及設(shè)計為研究方向,主要從諧波電流檢測方法、諧波電流的跟蹤控制、三電平APF系統(tǒng)的仿真以及硬件部分的研制等方面對其進(jìn)行研究。首先,本文介紹了諧波的產(chǎn)生及其危害,總結(jié)了國內(nèi)外APF的分類和發(fā)展現(xiàn)狀,分析了三電平APF的優(yōu)勢及發(fā)展前景。確立了三電平APF為本文的主要研究對象。其次,本文通過分析對比APF的幾種諧波電流檢測方法,采用了基于瞬時無功功率理論的諧波電流檢測法。同時對APF的跟蹤控制方法進(jìn)行了分析,采用三電平空間矢量脈寬調(diào)制(Space Vector Pulse Width Modulation,SVPWM)算法對APF進(jìn)行跟蹤控制。通過對三電平APF的電流檢測方法及跟蹤控制方法進(jìn)行深入分析,在傳統(tǒng)三電平SVPWM算法的基礎(chǔ)之上,采用了三電平SVPWM的簡化算法。并針對三電平APF直流側(cè)電容中點(diǎn)電壓不平衡問題提出了解決辦法。運(yùn)用Simulink對三電平SVPWM簡化算法以及三電平APF系統(tǒng)進(jìn)行了仿真,仿真結(jié)果表明本系統(tǒng)實(shí)現(xiàn)了諧波的補(bǔ)償,證明了簡化的三電平SVPWM算法是有效的。最后,本文結(jié)合理論研究及仿真實(shí)驗(yàn),設(shè)計了基于數(shù)字信號處理器(Digital Signal Processor,DSP)TMS320F28035控制的三電平APF實(shí)驗(yàn)系統(tǒng)。以TMS320F28035為核心的控制系統(tǒng)能夠生成PWM控制信號,控制信號輸送到驅(qū)動電路中,通過驅(qū)動電路控制主電路實(shí)現(xiàn)諧波電流的補(bǔ)償。完成了三電平APF實(shí)驗(yàn)系統(tǒng)的設(shè)計和調(diào)試,通過對系統(tǒng)進(jìn)行諧波補(bǔ)償?shù)膶?shí)驗(yàn),結(jié)果表明該系統(tǒng)能實(shí)現(xiàn)諧波補(bǔ)償,達(dá)到了預(yù)期的目標(biāo)。
[Abstract]:With the development of science and technology, power electronics technology has been widely used. A large number of nonlinear load connected to the power network brings harmonic pollution, which affects the power quality of the power grid. Active Power filter (APF), as a device that can realize harmonic dynamic compensation and improve power quality, has been paid more and more attention. In this paper, the principle and design of three-level APF are taken as the research direction. The harmonic current detection method, the tracking control of harmonic current, the simulation of three-level APF system and the development of hardware are studied. Firstly, this paper introduces the generation and harm of harmonics, summarizes the classification and development status of APF at home and abroad, and analyzes the advantages and prospects of three-level APF. Three-level APF is established as the main research object of this paper. Secondly, by analyzing and comparing several harmonic current detection methods of APF, the harmonic current detection method based on instantaneous reactive power theory is adopted. At the same time, the tracking control method of APF is analyzed, and the three-level space vector pulse-width modulation (SVPWM) algorithm is used to track and control APF. By analyzing the current detection method and tracking control method of three-level APF, the simplified three-level SVPWM algorithm is adopted based on the traditional three-level SVPWM algorithm. A solution to the unbalanced neutral point voltage of three-level APF DC-side capacitor is proposed. The three-level SVPWM simplification algorithm and the three-level APF system are simulated by using Simulink. The simulation results show that the system realizes harmonic compensation and proves that the simplified three-level SVPWM algorithm is effective. Finally, a three-level APF experimental system based on digital signal processor digital Signal processor TMS320F28035 is designed based on theoretical research and simulation experiments. The control system with TMS320F28035 as the core can generate the PWM control signal, and the control signal can be transmitted to the drive circuit, and the harmonic current compensation can be realized by the driving circuit controlling the main circuit. The design and debugging of the three-level APF experimental system are completed. The results show that the system can achieve harmonic compensation and achieve the desired goal.
【學(xué)位授予單位】：哈爾濱理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TM761;TN713.8

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本文編號：1947446