發(fā)布時間：2018-10-30 09:33

【摘要】：近年來，微電網(wǎng)、分布式發(fā)電和可再生能源發(fā)展迅速，同時，微電網(wǎng)與電網(wǎng)間交互作用的研究因為其應(yīng)用的越來越廣泛而顯得愈加重要。對于此類研究，電力系統(tǒng)實時仿真是一個高效便捷的工具，但是傳統(tǒng)的純數(shù)字仿真系統(tǒng)或者純物理仿真系統(tǒng)已經(jīng)滿足不了對電力系統(tǒng)研究的要求，于是提出了結(jié)合兩者優(yōu)勢的數(shù)字物理綜合仿真系統(tǒng)技術(shù)。而電流源型數(shù)模綜合仿真系統(tǒng)適用于數(shù)字側(cè)是大阻抗的小系統(tǒng)而物理側(cè)是小阻抗的大系統(tǒng)這種情況，，具有更好的靈活性和更廣的應(yīng)用范圍。 本文首先給出了電流源型數(shù)模綜合仿真系統(tǒng)的整體框架，其中物理側(cè)接口是重點研究對象，根據(jù)數(shù)模綜合仿真系統(tǒng)的研究特點，選擇三相整流和單相逆變作為物理側(cè)接口的主回路拓?fù)��？紤]數(shù)模綜合仿真系統(tǒng)的穩(wěn)定性問題，本文提出了基于理想變壓器模型的補償算法，并對該算法進(jìn)行了仿真驗證。本文另一主要研究內(nèi)容是電流源型變換器的實現(xiàn)，對于整流器和逆變跟隨器，分別給出了三相整流和單相逆變的PWM信號產(chǎn)生方案和控制方案，并在MATLAB中搭建了仿真模型，進(jìn)行了穩(wěn)態(tài)工況和動態(tài)工況的仿真實驗。最后，將整流器和逆變器進(jìn)行了串聯(lián)仿真，并建立了一個微網(wǎng)小系統(tǒng)模型對數(shù)模接口進(jìn)行了數(shù)模綜合仿真，與全數(shù)字仿真進(jìn)行了對比。仿真結(jié)果表明整流器可以提供穩(wěn)定的直流電流源，逆變跟隨器可以實現(xiàn)大部分波形的跟蹤輸出，數(shù)模接口能夠滿足數(shù)模綜合仿真系統(tǒng)的要求，數(shù)模綜合仿真的結(jié)果和全數(shù)字仿真一致，該接口裝置可以實現(xiàn)電力系統(tǒng)實時仿真。
[Abstract]:In recent years, microgrid, distributed generation and renewable energy have developed rapidly. At the same time, the research of interaction between microgrid and grid becomes more and more important because of its more and more extensive application. For this kind of research, power system real-time simulation is an efficient and convenient tool, but the traditional pure digital simulation system or pure physical simulation system can not meet the requirements of power system research. Therefore, the digital physical comprehensive simulation system technology combining the advantages of both is put forward. The current source digital-analog integrated simulation system is suitable for the small system with large impedance on the digital side and the large system with small impedance on the physical side, which has better flexibility and wider application range. In this paper, the whole frame of the current source digital-analog integrated simulation system is presented, in which the physical side interface is the key research object, according to the characteristics of the digital-analog integrated simulation system, Three-phase rectifier and single-phase inverter are selected as the main circuit topology of physical side interface. Considering the stability of digital-analog integrated simulation system, a compensation algorithm based on ideal transformer model is proposed in this paper, and the algorithm is verified by simulation. For rectifier and inverter follower, the PWM signal generation scheme and control scheme of three-phase rectifier and single-phase inverter are given respectively, and the simulation model is built in MATLAB. The simulation experiments of steady and dynamic conditions are carried out. Finally, the rectifier and inverter are simulated in series, and a micro-grid small system model is established to simulate the digital-analog interface, which is compared with the full-digital simulation. The simulation results show that the rectifier can provide a stable DC current source, the inverter follower can realize the tracking output of most waveforms, and the digital-analog interface can meet the requirements of the digital-analog integrated simulation system. The results of digital and analog simulation are consistent with the full digital simulation. The interface device can realize real time simulation of power system.
【學(xué)位授予單位】：華中科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM743

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 葉駿;閔勇;閔睿;梁旭;李國杰;;基于時序分析的數(shù)字物理混合仿真技術(shù) (三)穩(wěn)定性分析[J];電力系統(tǒng)自動化;2012年15期

2 梅成林;張立冬;邵穩(wěn);張碩廷;張步涵;毛承雄;曾杰;陳迅;;數(shù)—模綜合仿真接口算法分析[J];廣東電力;2012年07期

3 虞海賢;蘇建徽;王其兵;張亞玉;;無變壓器電流源型高壓變頻器濾波器設(shè)計[J];電氣傳動;2010年06期

4 胡濤;朱藝穎;張星;蔣衛(wèi)平;印永華;;全數(shù)字實時仿真裝置與物理仿真裝置的功率連接技術(shù)[J];電網(wǎng)技術(shù);2010年01期

5 陳磊;閔勇;葉駿;李國杰;梁旭;;數(shù)字物理混合仿真系統(tǒng)的建模及理論分析 (二)接口、穩(wěn)定性與相移分析[J];電力系統(tǒng)自動化;2009年24期

6 陳磊;閔勇;葉駿;李國杰;梁旭;;數(shù)字物理混合仿真系統(tǒng)的建模及理論分析 (一)系統(tǒng)結(jié)構(gòu)與模型[J];電力系統(tǒng)自動化;2009年23期

7 談龍成;李耀華;楊中龍;劉叢偉;王平;;三相電流型PWM整流器的功率因數(shù)控制新策略[J];電氣傳動;2009年11期

8 郝曉平;;電力系統(tǒng)實時數(shù)字仿真技術(shù)及應(yīng)用進(jìn)展[J];湖北電力;2009年04期

9 錢珞江;葉飛;鐘啟迪;;數(shù)字-物理模型互聯(lián)方法及混合仿真系統(tǒng)穩(wěn)定性研究[J];電力自動化設(shè)備;2008年09期

10 羅建民;戚光宇;何正文;象陽;;電力系統(tǒng)實時仿真技術(shù)研究綜述[J];繼電器;2006年18期

相關(guān)博士學(xué)位論文 前1條

1 賈旭東;基于RTDS的交直流系統(tǒng)實時數(shù)字仿真方法研究與實現(xiàn)[D];華北電力大學(xué)（河北）;2009年

本文編號：2299625