本文選題：并網(wǎng)逆變器 + 有源濾波器　； 參考：《蘭州交通大學(xué)》2017年碩士論文

【摘要】：由于人類社會(huì)在近幾個(gè)世紀(jì)的高速發(fā)展,電能作為當(dāng)今社會(huì)的主要能源之一,日常生活生產(chǎn)對(duì)電能的需求量和質(zhì)量的要求也在進(jìn)一步提高。在當(dāng)前能源危機(jī)不斷深化,環(huán)境污染不斷加劇的大環(huán)境下,如何有效利用新能源,尤其是電能,來(lái)改善當(dāng)前能源結(jié)構(gòu),改變化石能源為主的能源消耗現(xiàn)狀是亟待解決的一個(gè)世界性問(wèn)題。正因如此,以水力發(fā)電、光伏發(fā)電及風(fēng)力發(fā)電為代表的新能源發(fā)電技術(shù)受到了人類社會(huì)有史以來(lái)最高的關(guān)注。新能源發(fā)電技術(shù)大多應(yīng)用于分布式發(fā)電系統(tǒng)中,因此如何建立堅(jiān)強(qiáng)可靠的智能電網(wǎng)也是目前電力系統(tǒng)發(fā)展中的一個(gè)重點(diǎn)問(wèn)題。由于技術(shù)和建設(shè)條件的制約,以新能源發(fā)電技術(shù)為基礎(chǔ)的分布式電網(wǎng)不可避免的存在電能質(zhì)量不高的問(wèn)題。其主要原因是諧波對(duì)大電網(wǎng)的污染,諧波會(huì)直接導(dǎo)致電能傳輸過(guò)程中損耗增加,產(chǎn)生不必要的能量流失,諧波流入用電設(shè)備時(shí)會(huì)導(dǎo)致用電設(shè)備過(guò)熱甚至損壞,也是由于這個(gè)原因,如何有效抑制電力系統(tǒng)中的諧波在提高電力系統(tǒng)電能質(zhì)量中變得尤為重要。在這樣的環(huán)境和背景之下,本文通過(guò)分析并網(wǎng)逆變器和有源濾波器結(jié)構(gòu),對(duì)比二者的異同點(diǎn),以分布式電網(wǎng)為研究前提,研究一種結(jié)合并網(wǎng)逆變器和有源濾波器功能的新型逆變器,即有源濾波型并網(wǎng)逆變器。有源濾波型并網(wǎng)逆變器利用并網(wǎng)逆變器富余容量來(lái)實(shí)現(xiàn)逆變器及有源濾波器功能的結(jié)合,使得逆變器在實(shí)現(xiàn)逆變器對(duì)網(wǎng)側(cè)供電的功能的同時(shí),兼顧諧波抑制和無(wú)功補(bǔ)償?shù)墓δ�。新型逆變器可有效的降低系統(tǒng)成本,降低運(yùn)行成本,減小檢修難度。本文以這種可同時(shí)實(shí)現(xiàn)并網(wǎng)逆變與諧波抑制的并網(wǎng)逆變器為研究對(duì)象,從理論上對(duì)這種應(yīng)用于分布式電網(wǎng)中的逆變器的數(shù)學(xué)模型進(jìn)行了分析,并采用了以直接電流控制策略為核心,以一種改進(jìn)的d qi-i諧波檢測(cè)算法為工具的系統(tǒng)統(tǒng)一控制策略。采用該控制策略的逆變器可在實(shí)現(xiàn)并網(wǎng)逆變器功能的同時(shí)實(shí)現(xiàn)有源濾波器的功能,有效的濾除網(wǎng)側(cè)諧波,可有效的提高電能質(zhì)量。依據(jù)理論分析,對(duì)系統(tǒng)進(jìn)行Matlab/Simulink建模及仿真,仿真結(jié)果表明本文設(shè)計(jì)的有源濾波型并網(wǎng)逆變器能有效地抑制電力系統(tǒng)中的諧波,同時(shí)可完成并網(wǎng)工作,驗(yàn)證了本系統(tǒng)的可行性及實(shí)用性。
[Abstract]:With the rapid development of human society in recent centuries, electric energy, as one of the main energy sources, the demand and quality requirements of daily life production for electrical energy are also further improved. With the deepening of the current energy crisis and the worsening of environmental pollution, how to effectively use new energy sources, especially electrical energy, to improve the current energy structure, To change the current situation of fossil energy consumption is a world problem to be solved. As a result, new energy generation technologies, such as hydropower, photovoltaic power generation and wind power generation, have attracted the highest attention in the history of human society. New energy generation technologies are mostly used in distributed generation systems, so how to establish a strong and reliable smart grid is also a key issue in the development of power system. Due to the restriction of technology and construction conditions, the problem of low power quality is inevitable in the distributed grid based on the new energy generation technology. The main reason is that the harmonics pollute the large power grid, which will directly lead to the increase of the loss in the electric power transmission process and the unnecessary loss of energy. When the harmonics flow into the electric equipment, it will cause the electric equipment to overheat and even damage. For this reason, how to effectively suppress harmonics in power system becomes very important in improving power quality. In this environment and background, this paper analyzes the structure of grid-connected inverter and active power filter, compares the similarities and differences between them, and takes the distributed power grid as the premise of the research. An active filter grid-connected inverter which combines the functions of grid-connected inverter and active filter is studied. Active filter grid-connected inverter uses the surplus capacity of grid-connected inverter to realize the combination of inverter and active power filter, which makes the inverter realize the function of power supply to the grid-side of the inverter, and at the same time, the function of harmonic suppression and reactive power compensation is taken into account. The new inverter can effectively reduce system cost, operation cost and maintenance difficulty. This paper takes the grid-connected inverter which can realize grid-connected inverter and harmonic suppression simultaneously as the research object, and theoretically analyzes the mathematical model of the inverter applied in distributed power network. A unified control strategy with direct current control strategy as the core and an improved d qi-i harmonic detection algorithm as the tool is adopted. The inverter with this control strategy can realize the function of active power filter as well as realize the function of grid-connected inverter, effectively filter the harmonics on the grid side, and improve the power quality effectively. According to the theoretical analysis, the system is modeled and simulated by Matlab / Simulink. The simulation results show that the active filter grid-connected inverter designed in this paper can effectively suppress the harmonics in the power system, and can complete the grid-connected work at the same time. The feasibility and practicability of the system are verified.
【學(xué)位授予單位】：蘭州交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TM464

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 張鵬;;三相交流異步電動(dòng)機(jī)矢量控制系統(tǒng)仿真研究[J];河南科學(xué);2015年09期

2 張琪;唐忠;;SVPWM逆變器的開(kāi)關(guān)頻率和調(diào)制電壓幅值對(duì)輸出電壓諧波的影響[J];華東電力;2014年08期

3 楊浩;葉明佳;;dq坐標(biāo)變換的改進(jìn)型諧波和無(wú)功電流檢測(cè)法[J];電源技術(shù);2014年01期

4 楊淑英;孫燈悅;陳劉偉;張興;;基于解析法的電網(wǎng)故障時(shí)雙饋風(fēng)力發(fā)電機(jī)電磁暫態(tài)過(guò)程研究[J];中國(guó)電機(jī)工程學(xué)報(bào);2013年S1期

5 楊浩;葉明佳;張楠;;三相電壓不對(duì)稱系統(tǒng)的諧波和無(wú)功電流檢測(cè)[J];計(jì)算機(jī)仿真;2012年11期

6 羅安;吳傳平;彭雙劍;;諧波治理技術(shù)現(xiàn)狀及其發(fā)展[J];大功率變流技術(shù);2011年06期

7 劉聰;戴珂;張樹(shù)全;段科威;康勇;;用并網(wǎng)逆變器實(shí)現(xiàn)有源濾波與無(wú)功補(bǔ)償功能的研究[J];大功率變流技術(shù);2011年06期

8 徐龍博;譚江平;;實(shí)現(xiàn)無(wú)功補(bǔ)償和諧波抑制的風(fēng)力發(fā)電并網(wǎng)逆變器研究[J];科技信息;2011年29期

9 林海雪;;電能質(zhì)量國(guó)家標(biāo)準(zhǔn)系列講座 第3講 公用電網(wǎng)諧波標(biāo)準(zhǔn)[J];建筑電氣;2011年06期

10 杜春水;張承慧;劉鑫正;陳阿蓮;;帶有源電力濾波功能的三相光伏并網(wǎng)發(fā)電系統(tǒng)控制策略[J];電工技術(shù)學(xué)報(bào);2010年09期

相關(guān)博士學(xué)位論文 前2條

1 曾正;多功能并網(wǎng)逆變器及其微電網(wǎng)應(yīng)用[D];浙江大學(xué);2014年

2 謝斌;并聯(lián)型有源電力濾波器諧波檢測(cè)及控制技術(shù)研究[D];華中科技大學(xué);2010年

相關(guān)碩士學(xué)位論文 前10條

1 熊潔;LCL型并網(wǎng)逆變器控制算法研究[D];西南交通大學(xué);2015年

2 馬凱莉;基于自適應(yīng)陷波濾波器的單相光伏并網(wǎng)逆變器無(wú)功和諧波補(bǔ)償問(wèn)題的研究[D];浙江大學(xué);2015年

3 趙坤;三相異步電動(dòng)機(jī)模型的建立與二相可控硅軟起動(dòng)器控制算法的研究[D];西安電子科技大學(xué);2014年

4 尋駢臻;有源電力濾波器諧波電流檢測(cè)與控制策略研究[D];大連理工大學(xué);2013年

5 邱熙;PWM整流器控制系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)[D];湖南大學(xué);2013年

6 王雙一;雙重化有源電力濾波器控制方法的研究[D];西華大學(xué);2013年

7 王力;分布式電網(wǎng)用有源濾波型并網(wǎng)逆變器的研究[D];南京航空航天大學(xué);2013年

8 蘇佳;基于三相鎖相環(huán)和SVPWM的光伏逆變并網(wǎng)仿真研究[D];河北大學(xué);2012年

9 葉明佳;基于瞬時(shí)無(wú)功功率理論的諧波和無(wú)功電流檢測(cè)方法研究[D];重慶大學(xué);2012年

10 王曉東;光伏發(fā)電系統(tǒng)并網(wǎng)逆變控制實(shí)驗(yàn)研究[D];太原理工大學(xué);2012年

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