本文選題：動態(tài)電壓恢復器 + 電壓跌落��； 參考：《北京交通大學》2017年碩士論文

【摘要】：隨著工業(yè)的飛速發(fā)展.越來越多非線性、沖擊性負載被使用,由其引發(fā)電壓跌落、瞬時斷電等電能質(zhì)量問題已成為電力用戶共同關(guān)心的問題。動態(tài)電壓恢復器(Dynamic Voltage Restorer,DVR)裝置是一種能夠保護敏感負荷免受供電端電壓跌落、驟升等擾動的新型電力電子設(shè)備。串聯(lián)變壓器型動態(tài)電壓恢復器結(jié)構(gòu)簡單,效果明顯,廣泛應(yīng)用電能質(zhì)量控制領(lǐng)域。因此,本文針對串聯(lián)變壓器型動態(tài)電壓恢復器進行了研究。本文首先對動態(tài)電壓恢復器的基本結(jié)構(gòu)和原理進行了分析,并詳細介紹了有無串聯(lián)變壓器對整個系統(tǒng)的影響。由于采用了串聯(lián)變壓器,實際中會產(chǎn)生漏感,文中討論了漏感對濾波器設(shè)計和整個系統(tǒng)性能的影響。還確定了利用單相整流橋為逆變器提供輸入直流電壓,可以提供足夠的能量和持續(xù)時間�？焖�、準確地檢測出系統(tǒng)電壓跌落的特征量是動態(tài)電壓恢復器運行的前提條件。本文針對有效值檢測法和基于瞬時無功功率理論的dq0檢測法進行了介紹與仿真,并設(shè)計了數(shù)字低通濾波器,在保持檢測精度的前提下提高了系統(tǒng)的響應(yīng)速度。通過仿真說明改進有效值方法比傳統(tǒng)的有效值法具有更好的實時性。在動態(tài)電壓恢復器控制策略的研究方面,比較不同SPWM方式的優(yōu)缺點,并推導采用單極性倍頻方式的電壓輸出公式,說明了諧波的分布情況。然后基于PID經(jīng)典控制算法對單電壓閉環(huán)的幾種方式和電壓電流雙閉環(huán)進行了仿真,結(jié)合仿真結(jié)果分析了不同控制策略在穩(wěn)態(tài)性能和動態(tài)性能上的優(yōu)缺點以及不同適用場合。最后通過向量圖介紹了常用的三種補償方式,說明不同補償方式在經(jīng)濟成本方面的影響。最終本文設(shè)計了一臺基于TMS320F28335數(shù)字化控制的單相串聯(lián)變壓器動態(tài)電壓恢復器實驗樣機,進行了主電路方案設(shè)計、控制實驗板的搭建及程序設(shè)計。實驗結(jié)果表明,本文所設(shè)計的動態(tài)電壓恢復器補償效果良好,可以滿足小功率場合電壓跌落補償?shù)囊?為進一步研究奠定了的理論和實踐基礎(chǔ)。
[Abstract]:With the rapid development of industry, more and more nonlinear, the impact load is used, it causes the voltage drop, the instantaneous power quality problems have become the common concern of the power users. The dynamic voltage restorer (Dynamic Voltage Restorer, DVR) device is a kind of device to protect the sensitive load from the voltage drop of the power supply terminal. The series transformer type dynamic voltage restorer is simple, the effect is obvious, and the power quality control field is widely used. Therefore, the series transformer type dynamic voltage restorer is studied in this paper. Firstly, the basic structure and principle of the dynamic voltage restorer are analyzed, and the details of the dynamic voltage restorer are analyzed. The effect of a series transformer on the whole system is described in detail. Due to the use of a series transformer, the leakage inductance will be produced in practice. The effect of leakage inductance on the filter design and the performance of the whole system is discussed in this paper. The input DC voltage of the inverter is also determined by using a single-phase rectifier bridge to provide sufficient energy and duration. Fast and accurate detection of the characteristics of the voltage drop of the system is the precondition of the dynamic voltage restorer. In this paper, the effective value detection method and the dq0 detection method based on the instantaneous reactive power theory are introduced and simulated, and the digital low pass filter is designed to improve the response speed of the system on the premise of maintaining the detection precision. The simulation shows that the improved effective value method has better real-time performance than the traditional effective value method. In the study of the dynamic voltage restorer control strategy, the advantages and disadvantages of different SPWM modes are compared, and the voltage output formula using the unipolar frequency doubling mode is derived, and the distribution of harmonic waves is explained. Then based on the classical PID control calculation. Several modes of single voltage closed loop and double closed loop of voltage and current are simulated. The advantages and disadvantages of different control strategies in steady and dynamic performance are analyzed with simulation results. Finally, three kinds of common compensation methods are introduced by vector graph, and the economic cost of different compensation methods is explained. In this paper, a single phase series transformer dynamic voltage restorer experimental prototype based on TMS320F28335 digital control is designed, the main circuit scheme is designed, the construction of the experimental board and the program design are controlled. The experimental results show that the dynamic voltage restorer designed in this paper has good compensation effect and can satisfy the small power field. The requirement of voltage sag compensation has laid a theoretical and practical foundation for further research.
【學位授予單位】：北京交通大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TM714.2;TM761.12

【參考文獻】

相關(guān)期刊論文 前10條

1 施燁;吳在軍;竇曉波;胡敏強;趙波;;單相動態(tài)電壓恢復器復合控制技術(shù)[J];電工技術(shù)學報;2015年17期

2 王煒;李X;劉紫耀;;SPWM逆變器倍頻技術(shù)及諧波抑制方法的研究[J];微電機;2015年06期

3 吳延好;聶子玲;朱俊杰;李振;;PR控制策略下的中頻動態(tài)電壓恢復器的研究[J];電力電子技術(shù);2013年11期

4 劉普;蘆開平;石偉;;基于DSP2812軟件鎖相技術(shù)的研究[J];電源技術(shù);2013年06期

5 瞿碩;黃純;江亞群;曾照新;;DVR電壓暫降檢測新方法[J];電工技術(shù)學報;2013年04期

6 趙亮;梁東;張建軍;;電能質(zhì)量評估方法分析[J];高壓電器;2012年07期

7 孫繼健;肖嵐;;基于單極性SPWM控制的并網(wǎng)逆變器的研究[J];電力電子技術(shù);2011年01期

8 李林;;基于CH452A的數(shù)碼管驅(qū)動及鍵盤控制的系統(tǒng)設(shè)計[J];現(xiàn)代機械;2010年04期

9 王效孟;周勇;劉繼承;林烽;;檢測電壓暫降特征量的有效值算法[J];低壓電器;2010年10期

10 陶順;肖湘寧;;電力系統(tǒng)電能質(zhì)量評估體系架構(gòu)[J];電工技術(shù)學報;2010年04期

相關(guān)碩士學位論文 前7條

1 崔彪;基于動態(tài)電壓恢復器的電壓暫降治理研究[D];燕山大學;2014年

2 張春鳳;動態(tài)電壓恢復器的理論研究及其仿真[D];合肥工業(yè)大學;2008年

3 梁海濤;動態(tài)電壓恢復器的研究[D];合肥工業(yè)大學;2006年

4 陳洲;單相動態(tài)電壓恢復器的設(shè)計[D];四川大學;2005年

5 曹剛;PID控制器參數(shù)整定方法及其應(yīng)用研究[D];浙江大學;2004年

6 尤勇;動態(tài)電壓恢復器的研制[D];華北電力大學（北京）;2004年

7 金成日;多功能智能化高性能正弦波逆變電源的研究[D];合肥工業(yè)大學;2003年

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