發(fā)布時(shí)間：2018-05-18 10:28

  本文選題：激光 + 多普勒效應(yīng)��； 參考：《河北工業(yè)大學(xué)》2015年碩士論文

【摘要】：我國(guó)風(fēng)力資源豐富,利用風(fēng)力進(jìn)行發(fā)電是很有前景的行業(yè),并且風(fēng)也是影響工農(nóng)業(yè)生產(chǎn)的主要環(huán)境因素之一,因此準(zhǔn)確測(cè)量風(fēng)速風(fēng)向?qū)τ谌祟惛玫匮芯亢屠蔑L(fēng)能有積極的影響。激光多普勒風(fēng)速儀是一種能夠準(zhǔn)確測(cè)量風(fēng)速的儀器,它的風(fēng)筒轉(zhuǎn)向控制裝置是關(guān)鍵子系統(tǒng),其工作原理是根據(jù)風(fēng)標(biāo)及其相應(yīng)的旋轉(zhuǎn)編碼器測(cè)量出風(fēng)標(biāo)隨風(fēng)轉(zhuǎn)過的角度及時(shí)調(diào)整風(fēng)筒的旋轉(zhuǎn)角度,使風(fēng)筒的筒口方向能夠盡可能對(duì)著風(fēng)源,這樣進(jìn)入風(fēng)筒的風(fēng)源足夠多,從而可以保證在風(fēng)筒里以激光為測(cè)量介質(zhì)利用多普勒效應(yīng)測(cè)量出的風(fēng)速就是相對(duì)準(zhǔn)確的數(shù)據(jù)。目前國(guó)內(nèi)對(duì)于激光多普勒風(fēng)速儀轉(zhuǎn)向控制裝置研究較少,有待進(jìn)一步探索開發(fā)。本文主要研究分析了激光多普勒風(fēng)速儀中存在的負(fù)載跟蹤風(fēng)標(biāo)角度變化的問題,就這個(gè)問題提出并設(shè)計(jì)了激光多普勒風(fēng)速儀轉(zhuǎn)向伺服控制系統(tǒng)。文章主要研究?jī)?nèi)容分為以下幾方面:(1)文章首先對(duì)轉(zhuǎn)向伺服系統(tǒng)做了性能要求分析并針對(duì)分析結(jié)果提出了系統(tǒng)總體的設(shè)計(jì)方案;(2)對(duì)方案中涉及到的執(zhí)行部件、驅(qū)動(dòng)元件以及檢測(cè)器件等做了詳細(xì)地選型介紹;(3)建立轉(zhuǎn)向伺服系統(tǒng)的數(shù)學(xué)模型并針對(duì)于常規(guī)PID控制方法應(yīng)用在伺服電機(jī)中的不足之處,再結(jié)合神經(jīng)網(wǎng)絡(luò)自身所具有的突出的自學(xué)習(xí)能力、很好的魯棒性和較強(qiáng)的容錯(cuò)能力等特點(diǎn),提出了基于神經(jīng)網(wǎng)絡(luò)PID控制的激光多普勒風(fēng)速儀轉(zhuǎn)向伺服控制系統(tǒng),并利用MATLAB軟件分別對(duì)兩種不同的控制方法進(jìn)行仿真比較;(4)對(duì)轉(zhuǎn)向伺服系統(tǒng)控制器軟硬件結(jié)構(gòu)做設(shè)計(jì),利用PROTEL軟件繪制控制器原理圖和PCB文件,并進(jìn)行實(shí)體板的加工與元件的焊接,運(yùn)用C語言編寫單片機(jī)應(yīng)用程序及上位機(jī)控制程序。
[Abstract]:China is rich in wind power resources, and wind power generation is a promising industry, and wind is also one of the main environmental factors affecting industrial and agricultural production. Therefore, accurate measurement of wind speed and direction has a positive effect on the study and utilization of wind energy. Laser Doppler anemometer is an instrument that can accurately measure wind speed. Its working principle is to measure the angle of wind scale turning with the wind according to the wind scale and its corresponding rotary encoder to adjust the rotation angle of the air tube in time, so that the direction of the tube orifice can be directed against the air source as far as possible, so that there are enough air sources entering the air tube. Thus, the wind speed measured by using the Doppler effect in the wind tube using laser as the measuring medium is a relatively accurate data. At present, there is little research on the steering control device of laser Doppler anemometer in China, which needs further exploration and development. In this paper, the problem of angle change of load tracking wind scale in laser Doppler anemometer is analyzed, and the steering servo control system of laser Doppler anemometer is proposed and designed. The main research contents of this paper are as follows: (1) firstly, the performance requirements of steering servo system are analyzed, and the overall design scheme of the system is put forward. This paper introduces the mathematical model of steering servo system based on driving elements and detector parts in detail, and aims at the disadvantages of conventional PID control method applied in servo motor. Combined with the outstanding self-learning ability, good robustness and strong fault-tolerant ability of neural network, a steering servo control system of laser Doppler anemometer based on neural network PID control is proposed. The software and hardware structure of the steering servo system controller is designed by using MATLAB software. The schematic diagram of the controller and the PCB file are drawn by using the PROTEL software. The machining of solid board and the welding of components are carried out, and the application program of single chip computer and the control program of upper computer are compiled by C language.
【學(xué)位授予單位】：河北工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TH744.5

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