The main contents in this dissertation are as follows:According to the theory of asymmetry operation, this dissertation has a research on the principle of ASVGs main circuit, eliminating the fundamental negative, zero sequence and harmonic current so as to realize operation in stabilization.

本文的主要內(nèi)容如下：根據(jù)電力系統(tǒng)不對(duì)稱運(yùn)行原理欧美日韩com，本文研究靜止無功發(fā)生器的主電路結(jié)構(gòu)和減小或抑制基波負(fù)序零序和諧波電流的機(jī)理色欲色香天天天综合视频在线观看，以實(shí)現(xiàn)電力系統(tǒng)的穩(wěn)定運(yùn)行在线免费观看黄色视频的网站。

A detailed analysis of the main circuit introduction, control method and working principle of the direct-drive wind energy conversion system are given to introduce the two important parts a of this paper: First part is the control method of the multiple boost convertor, the important instantaneous current control method of this paper is given through the analysis of the main circuit structure, control method and working principle. Then a steady-state analysis for low-frequency, a high-frequency component analysis, and a closed-loop tracking performance analysis for dynamic response are provided to analyze the method proposed; And the second part is the control method of invertor.

在系統(tǒng)變流器整體結(jié)構(gòu)分析的基礎(chǔ)上久久网色，引出本文重點(diǎn)研究的兩個(gè)變流環(huán)節(jié)的控制：第一部分是系統(tǒng)升壓斬波器的控制，通過分析相關(guān)主電路結(jié)構(gòu)免费视频网站嗯啊轻点视频、原理色哟哟m3u8免费视频，建立了數(shù)學(xué)模型，引出本文重點(diǎn)研究的瞬時(shí)值控制策略的概念和具體實(shí)現(xiàn)亚洲无码激情，并對(duì)升壓斬波器的瞬時(shí)值控制策略進(jìn)行了詳細(xì)的高頻、低頻模型分析和穩(wěn)態(tài)最新精品国偷一区二区、動(dòng)態(tài)性能分析可在线观看网站91；第二部分是系統(tǒng)并網(wǎng)逆變器的控制，通過對(duì)逆變器主電路的數(shù)學(xué)建模和控制要求分析未满十八禁止免费网址，研究了并網(wǎng)逆變器的瞬時(shí)值控制策略黄色色色色色色色，包括電感電流控制內(nèi)環(huán)和直流電壓控制外環(huán)的具體設(shè)計(jì)和實(shí)現(xiàn)方法。

The thesis contains five chapters. The first chapter summarizes the development and research of switched reluctance drive, discusses the main research direction, and explains the main work in this paper. In chapter 2, hardware system which includes the design of power converter and various control circuit is discussed. TMS320LF2407 DSP is used to design the hardware circuits of SRM control system, and design details including the current detection, position sensing, fault protection, speed detecting, keyboard and display etc. are provided. Because of the full use of the abundant peripheral resources of DSP, it comes to the aim simplifying the circuit structure and heightening the reliability. In chapter 3, the application of neural network on SRM control system is introduced, a new the application of neural network and the method of sampling is proposed and a simulation system based on Matlab/Simulink is established. Chapter 4 discusses the routine designing issue. Because the modularized programming method is adopted, and multi-interrupt processing technique is used, operation efficiency of the control software is highly raised. At last, the foregoing SRM control system is tested. Speed adjustment is realized, and other targets on the research and design of SRM control system are reached, which establishes a good foundation for further research.

本文共分五章操逼污视频网站，第一章概述了開關(guān)磁阻電機(jī)調(diào)速系統(tǒng)(Switched Reluctance Drive黄页免费视频观看，簡(jiǎn)稱SRD)及其發(fā)展和研究現(xiàn)狀，論述了其主要研究方向人人爽人人超人人高潮，并說明了本文的主要工作学生妹97人人摸人人操浪潮；接下來的一章主要討論了SRM的硬件系統(tǒng)，主要包括功率變換器的設(shè)計(jì)和各種控制電路的設(shè)計(jì)无码天天av，本文以TMS320LF2407為核心設(shè)計(jì)了開關(guān)磁阻電機(jī)控制系統(tǒng)硬件電路色哟哟在线播放高清视频观看，給出了包括電流檢測(cè)、位置檢測(cè)思热在线视频精品免费观看、故障保護(hù)又长又大又粗的日皮视频、測(cè)速電路及鍵盤和顯示電路等部分電路的詳細(xì)設(shè)計(jì)，充分利用了DSP的豐富外設(shè)資源高清无码视频在线观看的，達(dá)到了簡(jiǎn)化電路結(jié)構(gòu)亚洲图片小说、提高運(yùn)行可靠性的目的；第三章介紹了人工神經(jīng)網(wǎng)絡(luò)在開關(guān)磁阻電機(jī)控制系統(tǒng)中的應(yīng)用在线黄黄自慰，提出了一種新的應(yīng)用方式(利用GPFN神經(jīng)網(wǎng)絡(luò)調(diào)節(jié)PI參數(shù))以及如何采取樣本黄片高清一区国产，搭建了基于Matlab/Simulink的仿真系統(tǒng)；在第四章中中国一级无码黄片，討論了開關(guān)磁阻電機(jī)控制軟件的設(shè)計(jì)自拍偷拍欧美性爱视频，采用模塊化編程方法，采用基于多中斷的控制程序欧美乱肏，提高了控制軟件的效率50岁熟妇；最后黄片一级性交aaa免费视频，對(duì)所設(shè)計(jì)的開關(guān)磁阻電機(jī)控制系統(tǒng)進(jìn)行了實(shí)驗(yàn)，實(shí)現(xiàn)了電機(jī)調(diào)速乱伦小说综合网，達(dá)到了開關(guān)磁阻電機(jī)控制系統(tǒng)研究和設(shè)計(jì)的預(yù)期目標(biāo)特级片网站，為更近一步研究打下了基礎(chǔ)。

The paper reviewed the current research progress and the main achievements of biohydrogen production technology research both at home and abroad,and described the hydrogen production mechanism s of main hydrogen producing organisms,such as phot.

本文綜述了目前國內(nèi)外生物制氫技術(shù)各個(gè)方面的研究進(jìn)展和成果国产论理精品在线，并詳細(xì)描述了光合產(chǎn)氫細(xì)菌及發(fā)酵產(chǎn)氫細(xì)菌等主要產(chǎn)氫生物的產(chǎn)氫機(jī)制四位少妇精油按摩。

This article that focuses on the systematic and in-depth research in the current primal problem about abnormal burst pressure reservoir depress burst pressure has procured following main fruits:1 It forms the method which could obtain massive vertical static state mechanics parameters.2 In a foundation of acquisition of rock mechanics parameters,apply bent lamella that as mechanical model along with characteristic of actual geologic characteristics to analysis curvature for anticlinal strcture, get homologous tectonic stress value throug relation between the curvature and stress and different principal curvature in anticlinal structure,consequently set up laminational stress model for anticline reservoir. The block lamination for existed fracturing date has formed method of setting up mechanical model of lamination terrestrial stress by abtaining the block tectonic stress coefficients which are got by complex utilization test, laboratory test and fracturing date playback.3 Analysesing the main reason which lead to high burst pressure by considering the characteristic of reservoir geology,reservoir,and rock mechanics and reservoir damage,etc.Establishing burst pressure quantitative prediction model which provide gist for depressing construction risk and optimizing construction craft under the condition of open hole completion ,gun-perforated completion and damaged reservoir.4 Provding theoretical basis for interpreting acidification pretreatment which could depress busrt pressure by finding the relation between the influencing factors and rock machanics parameters and analysing the factors that have effect on rock mechanics parameters. Expounding the mechanism of reaction of mixed monomineral and acid from the angle of microcosmic element, evaluating quantitatively acid sensilility of different kinds of mineral effectively, and determing the first-order reaction dynamical equation of each mineral.5 Revealing rock mechanics property chage as a result of acid flooding in different condition by sandstone traumata experiment in different temperatures which combined with rock mechanics triaxial stress experiment.6 Associating damage mechanics with sandstone acidizing, established sandstone damage mechanics model in the foundation of the recognition on the rock mechanics parametric variation which is caused by acid-rock reaction in both macroscopic view and microscopic view ,also demonstrated those processes and quantitative estimated the acid busrt pressure to direct the site operation.

本文針對(duì)目前異常破裂壓力儲(chǔ)層降低破裂壓力的主要問題展開較為系統(tǒng)和深入的研究，取得了以下主要成果：1形成了利用測(cè)井資料生活片AⅤ二区，結(jié)合室內(nèi)巖芯測(cè)試結(jié)果52pao国产成视频永久免费，獲取靜動(dòng)巖石力學(xué)參數(shù)的相關(guān)性特征，從而獲得縱向上大量靜態(tài)力學(xué)參數(shù)的方法日本午夜性爱影院。2在獲取了巖石力學(xué)參數(shù)的此基礎(chǔ)上台湾山村寡妇一级A片，利用彎曲薄板作為力學(xué)模型，結(jié)合區(qū)塊實(shí)際地質(zhì)特征對(duì)背斜構(gòu)造進(jìn)行曲率分析影音在线资源，通過曲率與應(yīng)力的關(guān)系在线观看国产综合日韩AV，利用背斜構(gòu)造不同部位的主曲率求得相應(yīng)的構(gòu)造應(yīng)力值，從而建立起背斜儲(chǔ)層的分層應(yīng)力模型国产A片黄免费看；對(duì)已有壓裂資料的區(qū)塊分層国产一区免费在线观看，形成了綜合利用測(cè)試、室內(nèi)實(shí)驗(yàn)国产真人操逼视频、壓裂資料反演獲得該區(qū)塊構(gòu)造應(yīng)力系數(shù)无码aaaaaaaaa在线，建立起分層地應(yīng)力的力學(xué)模型的方法。3綜合考慮儲(chǔ)層地質(zhì)日日插日日干日日透、油藏激情小说自拍视频、巖石力學(xué)特性和儲(chǔ)層傷害等因素，分析造成高破裂壓力的主要原因欧美黄片A久久999，綜合利用巖石力學(xué)黄污aaawww水视频、彈性力學(xué)等知識(shí)，建立了裸眼完井日本XXXX厕所偷拍视频、射孔完井條件下以及儲(chǔ)層受到傷害后的儲(chǔ)層破裂壓力定量預(yù)測(cè)模型首页国产日韩欧美第一页，為降低施工風(fēng)險(xiǎn)和優(yōu)化施工工藝提供了依據(jù)。4完成了物性色哟哟免费小黄片、巖性影響巖石力學(xué)參數(shù)的因素分析人妻18p视频一区二区，找出了各影響因素和巖石力學(xué)參數(shù)之間的關(guān)系，為從機(jī)理上解釋酸化預(yù)處理降低破裂壓力提供了理論基礎(chǔ)欧美一级特黄AAA片免费动漫；從微觀元素的角度闡述了單礦物與酸反應(yīng)的機(jī)理久操欧美视频；并在此基礎(chǔ)上，有效評(píng)價(jià)了各種礦物的酸敏感性，定量確定了巖石中各礦物的一級(jí)反應(yīng)動(dòng)力學(xué)方程www天堂在线亚洲av。5完成了不同溫度下的酸液類型黄片视频在线观看www、酸液濃度、注酸量等一系列砂巖損傷實(shí)驗(yàn)欧美性爱十八岁以下禁止进入，結(jié)合巖石力學(xué)三軸應(yīng)力實(shí)驗(yàn)日日干夜夜操一区二区三区，系統(tǒng)揭示了在不同條件下注酸而引起的巖石力學(xué)性質(zhì)變化。6將損傷力學(xué)與砂巖酸化相結(jié)合无码不花钱的污网站在线观看，在宏觀无码肏屄黄色视频、微觀兩個(gè)方面認(rèn)識(shí)酸巖反應(yīng)引起巖石力學(xué)參數(shù)變化基礎(chǔ)上，建立了砂巖損傷力學(xué)模型人人操av综合网，并對(duì)其進(jìn)行驗(yàn)證久久免费看A级毛片，在此基礎(chǔ)上定量計(jì)算酸化后的破裂壓力，有效指導(dǎo)現(xiàn)場(chǎng)施工

The prodrome of this paper includes main topics, research purpose, researching range and current situation about the relevant research in China and abroad, and the main methods the paper adopted.

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The Paper include the following main points :(1) The paper proposed the academic background and significance of the topic and explained the BF raceway mechanism. The current situation and development trend of the field at home and abroad have done a review, and the main content of the paper have been proposed.

論文主要研究?jī)?nèi)容包括以下幾部分：(1)首先提出了課題的學(xué)術(shù)背景及意義18岁禁看网站。，闡明了高爐風(fēng)口回旋區(qū)內(nèi)的反應(yīng)及形成機(jī)理激情综合第一页，對(duì)相關(guān)領(lǐng)域的國內(nèi)外研究現(xiàn)狀以及發(fā)展趨勢(shì)做了綜述，并指出了本文的主要研究?jī)?nèi)容国产拍揄自揄精品视频。

The composition voltage, the electric current double closed loop voltage-stabilized source, used the integrated phase shifting crystal thyratron module to do for the electrical energy transformation component, in detail has calculated the rectification main circuit main component parameter; In the pulse-duration modulation part, used the special-purpose integrated circuit to realize the frequency modulation to adjust the pressure, did take IGBT as the power transformation component, realized the output voltage frequency modulation to adjust the pressure, and has calculated the related parameter.

在調(diào)壓穩(wěn)壓電壓源設(shè)計(jì)中采用二階工程設(shè)計(jì)法設(shè)計(jì)了電壓和電流調(diào)節(jié)器精品视频丝袜足j在线视频，組成電壓、電流雙閉環(huán)穩(wěn)壓電源免费性交免费性交A片，采用集成移相晶閘管模塊做為電能變換器件在线观看视频日韩精品，詳細(xì)計(jì)算了整流主電路主要器件的參數(shù)；在脈寬調(diào)制部分欧美性XXXXX极品视频，采用專用集成電路實(shí)現(xiàn)了調(diào)頻調(diào)壓疯狂伦交成人网站视频在线观看，以 IGBT 做為功率變換器件，實(shí)現(xiàn)了輸出電壓的調(diào)頻調(diào)壓亚洲精品地址一地址二，并計(jì)算了有關(guān)參數(shù)国产无码a.。

In this paper,based on the current status of development of the urban landscape and the main problems,the concept of visual pollution that human misconduct, geographical and cultural landscape of sports and information technology is similar to the landscape of ecological imbalances and the main reason,and solve this problem way is to establish and improve the urban la ndscape and the regeneration method of the theoretical system.

本文首先根據(jù)目前城市景觀發(fā)展的現(xiàn)狀及存在的主要問題，提出景觀污染的概念自拍视频日韩在线视频观看网站免费，指出人類不當(dāng)行為18禁三级黄色网站、景觀文化的地域運(yùn)動(dòng)和信息化是導(dǎo)致景觀生態(tài)失衡及雷同化的主因，而解決這一問題的途徑是建立和完善城市景觀再生的理論體系及方法日本三级黄在线观看。

In addition, the men's basketball warm-up match will be accumulated through the wealth of experience, the current Stankovic Cup in China men's basketball team to do the main objective of the Angolan repatriation main source for the Chinese men's basketball to find out the other side "family property" provides a valuable opportunity.

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