本文關(guān)鍵詞： 電能質(zhì)量 電力濾波器 諧波 電力系統(tǒng)　出處：《曲阜師范大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

【摘要】：電能是人們生產(chǎn)生活中應(yīng)用最廣泛、最方便、最清潔的能源,影響著國(guó)民生活的各個(gè)方面。隨著社會(huì)發(fā)展、科技進(jìn)步,人們精神和物質(zhì)的需求不斷增長(zhǎng),作為提高生活質(zhì)量不可或缺的重要能源,電能的社會(huì)需求量不斷增加,愈發(fā)使電能在社會(huì)能用能源中占據(jù)著舉足輕重的地位,因此電能的質(zhì)量好壞對(duì)社會(huì)生產(chǎn)生活有著空前重大的影響。但隨著大量半導(dǎo)體器件以及非線性負(fù)載的應(yīng)用產(chǎn)生大量畸波,致使電網(wǎng)受到污染,電能質(zhì)量遭到破壞,給人們的生產(chǎn)生活帶來(lái)許多不便甚至造成重大損失。因此,對(duì)電能質(zhì)量的優(yōu)化、改革、治理需要加快進(jìn)程。電力系統(tǒng)中衡量電能質(zhì)量好壞的一項(xiàng)重要指標(biāo)是電壓波形。諧波是造成電壓波形失真的主要因素。為了保證能維持較高標(biāo)準(zhǔn)的電能質(zhì)量,全世界范圍內(nèi)許多國(guó)家、機(jī)構(gòu)制定要求和標(biāo)準(zhǔn)用以限制電網(wǎng)諧波,維護(hù)電網(wǎng)電能質(zhì)量。如何有效解決電能質(zhì)量降低,提高電能質(zhì)量的專題研究,是社會(huì)發(fā)展的需要。全世界范圍內(nèi)的學(xué)術(shù)界和工程界大批研究人員一直在努力。一般處理諧波污染有兩種途徑:一是對(duì)產(chǎn)生諧波污染的器件、設(shè)備進(jìn)行升級(jí)改進(jìn),達(dá)到減少甚至消除諧波的目的。這一方向從產(chǎn)生諧波的源頭上著手,能有效減少甚至消除諧波,但面對(duì)龐大的電力系統(tǒng)而言,這個(gè)方向幾乎無(wú)法實(shí)現(xiàn)。二是對(duì)電網(wǎng)進(jìn)行精確的畸波補(bǔ)償,達(dá)到抑制畸波、補(bǔ)償無(wú)功功率、提高電能質(zhì)量的目的。這一研究方向,無(wú)源電力濾波器和有源電力濾波器是重要研究成果,已經(jīng)投入使用并成為治理諧波污染的重要手段。尤其是有源電力濾波器是公認(rèn)的最好的處理手段,其高效、穩(wěn)定、靈活的優(yōu)點(diǎn)奠定了在優(yōu)化電網(wǎng)中的地位及其應(yīng)用前景。本文在提出諧波問(wèn)題后,給出了解決問(wèn)題的方法,就是本文的研究課題 有源電力濾波器。研究了它的研究現(xiàn)狀、系統(tǒng)結(jié)構(gòu)、基本工作原理、控制方法及其發(fā)展趨勢(shì),并選擇了基于有功功率平衡原理的三相并聯(lián)型有源電力濾波器進(jìn)行深入研究,期望能在實(shí)時(shí)性、準(zhǔn)確性方面、造價(jià)等方面有所進(jìn)步,最后利用Matlab進(jìn)行了仿真實(shí)驗(yàn),分析結(jié)果證明了該理論的優(yōu)越性,同時(shí)找到了研究的不足并提出了可能的改進(jìn)意見(jiàn)。
[Abstract]:Electric energy is the most widely used, the most convenient, the cleanest energy in people's production and life, which affects all aspects of national life. With the development of society, scientific and technological progress, people's spiritual and material needs continue to grow. As an indispensable and important energy to improve the quality of life, the social demand for electric energy is increasing, which makes electric energy play an important role in the social energy. Therefore, the quality of electrical energy has an unprecedented impact on social production and life. However, with a large number of semiconductor devices and the application of nonlinear loads a large number of teratological waves, resulting in power grid pollution. The power quality has been destroyed, which brings a lot of inconvenience and even great loss to people's production and life. Therefore, the optimization of power quality is reformed. Voltage waveform is an important index to measure power quality in power system. Harmonic is the main factor that causes voltage waveform distortion. In order to ensure the high standard power quality can be maintained. In many countries all over the world, institutions have formulated requirements and standards to limit power harmonics and maintain power quality. How to effectively solve the problem of reducing power quality and improving power quality is a special topic. It is the need of social development. A large number of researchers in academic and engineering circles all over the world have been working hard. Generally there are two ways to deal with harmonic pollution: one is to produce harmonic pollution devices. Equipment upgrading and improvement to reduce or even eliminate the purpose of harmonic. This direction from the source of harmonic generation can effectively reduce or eliminate harmonics, but in the face of a large power system. This direction is almost impossible to achieve. The second is to accurately compensate the power grid to achieve the purpose of suppressing the abnormal wave, compensating reactive power and improving the power quality. Passive power filter and active power filter are important research achievements, which have been used and become an important means to control harmonic pollution, especially the active power filter is recognized as the best means of processing, its efficiency. The advantages of stability and flexibility have laid a solid foundation for the status and application prospects in the optimization of the power network. After putting forward the harmonic problem, the paper gives the method to solve the problem. It is the research topic of this paper, active power filter. The research status, system structure, basic working principle, control method and its development trend are studied. And the three-phase shunt active power filter based on the principle of active power balance is selected for in-depth study, hoping to make progress in real-time, accuracy, cost and so on. Finally, the simulation experiment is carried out by using Matlab, and the analysis results prove the superiority of the theory, and find out the deficiency of the research and put forward the possible improvement suggestion at the same time.
【學(xué)位授予單位】：曲阜師范大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：TM761

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本文編號(hào)：1445712