電弧爐系統(tǒng)電能質(zhì)量分析與諧波抑制策略研究
[Abstract]:With the increasing of electric arc furnace steelmaking output, more and more large capacity electric arc furnaces are connected to the power grid, and the influence on the power supply system is more and more prominent. The traditional harmonic suppression method can not meet the demand. Therefore, based on the analysis of electric power quality of electric arc furnace system, it is of great social and economic significance and academic value to study the harmonic suppression strategy on the power supply side. Firstly, in order to reflect a series of problems caused by EAF on the power supply side, a modeling method of EAF dynamic model is studied, and the dynamic model of EAF is established accordingly. The simulation results of the dynamic model are compared with the measured data and waveforms, which proves the rationality and correctness of the model, and establishes the model foundation for the analysis of electric power quality and the research of harmonic suppression strategy in electric arc furnace power network. Secondly, in order to improve the performance of hybrid active power filter and reduce the waste of active power and power resource in the operation of complex structure filter, in order to improve the harmonic control method of arc furnace, combined with the characteristics of different smelting stages of arc furnace, In this paper, a low loss hybrid active filter design method is proposed. In the initial stage of arc furnace smelting, large capacity series resonant injection hybrid active power filter (SRITHAPF),) is put into operation. When arc furnace smelting reaches the reduction period, the injection active power filter (IAPF),) is put in charge of the harmonic control task in the remaining stage. The problem of waste of active power and power resource in the operation of complex structure filter is solved. On this basis, the operation mechanism of the new hybrid active power filter is analyzed, and the key problems, such as the impulse current generated by switching on and off, are studied. The results of simulation and theoretical calculation verify the harmonic control effect of different filters on the corresponding smelting stage of EAF. The simulation results show that compared with the filter with single structure, the new filter with input structure can obtain better filtering performance, reduce the fundamental loss effectively, and improve the operating efficiency of the filter device. Finally, aiming at some problems existing in the traditional detection method, a harmonic detection method is improved, which reduces the calculation cost and saves the phase-locked loop. At the same time, the low-pass filter in the traditional detection method is replaced by the optimized filter. By simulating the current waveform of the improved method, it can be seen that the improved harmonic detection algorithm can track the harmonic current more accurately and compensate it.
【學(xué)位授予單位】:天津理工大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類(lèi)號(hào)】:TM711
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 湯賜;羅安;吳寧;孫賢大;;新型注入式混合有源濾波器的設(shè)計(jì)及應(yīng)用(二)[J];變流技術(shù)與電力牽引;2007年02期
2 涂春鳴,羅安,楊勇;一種新的混合有源濾波器控制方法[J];長(zhǎng)沙電力學(xué)院學(xué)報(bào)(自然科學(xué)版);2003年03期
3 湯賜;姚舜;帥智康;趙偉;;新型注入式混合有源濾波器的穩(wěn)定性研究[J];電網(wǎng)技術(shù);2006年20期
4 唐欣;曾祥君;涂春鳴;;新型諧振式混合有源濾波器的研究[J];高電壓技術(shù);2007年01期
5 湯賜;羅安;劉堯;帥智康;;新型注入式混合有源濾波器中數(shù)字控制器的設(shè)計(jì)及實(shí)現(xiàn)[J];中國(guó)電力;2007年02期
6 湯賜;羅安;范瑞祥;趙偉;;新型注入式混合有源濾波器應(yīng)用中的問(wèn)題[J];中國(guó)電機(jī)工程學(xué)報(bào);2008年18期
7 鄭建勇;張愉;丁祖軍;;并聯(lián)電感型混合有源濾波器及其控制策略[J];電網(wǎng)技術(shù);2010年01期
8 張曉英;黨存祿;王德福;;一種新型串聯(lián)混合有源濾波器及其控制技術(shù)研究[J];電氣自動(dòng)化;2010年05期
9 汪玉鳳;李健;章振海;;6kV煤礦供電網(wǎng)混合有源濾波器的應(yīng)用研究[J];電力電子技術(shù);2011年10期
10 趙麗娜;郭立杰;李振明;;混合有源濾波器的復(fù)合控制研究[J];電源技術(shù);2012年08期
相關(guān)會(huì)議論文 前1條
1 何智;汪玉鳳;邱彬;;實(shí)用型混合有源濾波器在冶金行業(yè)中的應(yīng)用[A];第18屆全國(guó)煤礦自動(dòng)化與信息化學(xué)術(shù)會(huì)議論文集[C];2008年
相關(guān)博士學(xué)位論文 前3條
1 湯賜;新型注入式混合有源濾波器的理論及其應(yīng)用研究[D];湖南大學(xué);2008年
2 唐欣;新型大功率串聯(lián)諧振注入式混合有源濾波器的研究[D];中南大學(xué);2005年
3 涂春鳴;新型諧振阻抗型混合有源濾波器PITHAF研究[D];中南大學(xué);2003年
相關(guān)碩士學(xué)位論文 前10條
1 黃曉菊;混合有源濾波器在低壓諧波中的應(yīng)用研究[D];南昌大學(xué);2015年
2 溫從溪;混合有源濾波器控制策略研究[D];華北電力大學(xué);2015年
3 賈飛;混合有源濾波器在低壓電網(wǎng)中的應(yīng)用與研究[D];山東理工大學(xué);2015年
4 佟子昂;基于DSP+FPGA架構(gòu)的三電平混合有源濾波器的控制方法研究[D];北方工業(yè)大學(xué);2016年
5 石亞慧;電弧爐系統(tǒng)電能質(zhì)量分析與諧波抑制策略研究[D];天津理工大學(xué);2017年
6 張明廣;串聯(lián)諧振注入式混合有源濾波器的研究[D];哈爾濱理工大學(xué);2010年
7 舒明雷;混合有源濾波器控制策略研究[D];山東大學(xué);2006年
8 錢(qián)志俊;混合有源濾波器的數(shù)字控制技術(shù)[D];浙江大學(xué);2007年
9 李太峰;6KV煤礦供電網(wǎng)混合有源濾波器的研究[D];遼寧工程技術(shù)大學(xué);2009年
10 孫勇;6kV電網(wǎng)礦用大功率混合有源濾波器的研究與仿真[D];遼寧工程技術(shù)大學(xué);2008年
,本文編號(hào):2286622
本文鏈接:http://sikaile.net/kejilunwen/dianlidianqilunwen/2286622.html