本文選題：潮流能 + 水平軸葉輪��； 參考：《太原科技大學(xué)》2014年碩士論文

【摘要】：進(jìn)入21世紀(jì)以來(lái)，隨著科學(xué)技術(shù)的不斷發(fā)展和人口快速增長(zhǎng)，常規(guī)能源日漸枯竭，開(kāi)發(fā)利用新能源，優(yōu)化能源結(jié)構(gòu)已經(jīng)成為大勢(shì)所趨。潮流能清潔無(wú)污染、可反復(fù)利用、蘊(yùn)涵巨大，相比波浪能、海上風(fēng)能及太陽(yáng)能規(guī)律性更強(qiáng)，受氣候影響小，能量密度更大。因此潮流能作為一種有發(fā)展?jié)摿Φ男履茉�，已�?jīng)引起許多海洋國(guó)家的重視，正積極進(jìn)行開(kāi)發(fā)研究。 近年來(lái)，潮流能發(fā)電技術(shù)日新月異，但如何在變流速下提高發(fā)電效率、增大單機(jī)組發(fā)電量，如何提高裝置可靠性、安全性等問(wèn)題，仍是潮流能發(fā)電技術(shù)研究的重點(diǎn)和難點(diǎn)。因此，本文以10KW潮流能發(fā)電系統(tǒng)為對(duì)象，搭建了海上試驗(yàn)平臺(tái)，針對(duì)發(fā)電系統(tǒng)效率問(wèn)題建立了一個(gè)可應(yīng)用于變流速下潮流能發(fā)電系統(tǒng)控制策略研究的數(shù)學(xué)模型。建立的數(shù)學(xué)模型相比現(xiàn)有的控制模型，，不僅考慮了葉輪捕能效率，同時(shí)也考慮了傳動(dòng)系統(tǒng)的效率。對(duì)應(yīng)不同流速，可通過(guò)控制模型調(diào)整系統(tǒng)各部分的參數(shù)，從而使系統(tǒng)在整個(gè)流速變化周期內(nèi)保持最大輸出功率。由于葉輪捕能效率，及傳動(dòng)系統(tǒng)元器件效率無(wú)法運(yùn)用數(shù)學(xué)模型通過(guò)計(jì)算獲得，因此，通過(guò)海上試驗(yàn)的實(shí)測(cè)數(shù)據(jù)來(lái)確定模型中的參數(shù)，并對(duì)數(shù)學(xué)模型進(jìn)行修正，從而得到項(xiàng)目研究的10KW潮流能發(fā)電系統(tǒng)的實(shí)際控制模型。針對(duì)裝置可靠性問(wèn)題，本文對(duì)潮流能發(fā)電系統(tǒng)葉輪支撐框架進(jìn)行了設(shè)計(jì)，通過(guò)對(duì)各種工況下框架的受力進(jìn)行分析，在盡可能減小框架對(duì)潮流阻礙的同時(shí)保證了框架的強(qiáng)度，提高了裝置可靠性。
[Abstract]:Since the 21st century, with the continuous development of science and technology and the rapid growth of population, the conventional energy has been exhausted day by day. It has become a general trend to develop and utilize new energy sources and optimize the energy structure. Compared with wave energy, wind energy and solar energy at sea are more regular, less affected by climate and more energy density. Therefore, as a potential new energy source, tidal energy has attracted the attention of many marine countries and is actively developing and researching. In recent years, the technology of power flow power generation is changing with each passing day. However, how to improve the efficiency of power generation, how to increase the generation capacity of single unit, how to improve the reliability and safety of power flow generation is still the key and difficult point in the research of power flow power generation technology. Therefore, this paper takes the 10KW tidal current generation system as the object, builds the offshore test platform, and establishes a mathematical model for the study of the control strategy of the power generation system under variable velocity of velocity, aiming at the efficiency of the power generation system. Compared with the existing control model, the established mathematical model not only considers the efficiency of impeller energy capture, but also considers the efficiency of transmission system. The parameters of each part of the system can be adjusted by the control model to keep the maximum output power of the system during the whole period of velocity variation. Because the efficiency of impeller energy capture and the efficiency of components of transmission system can not be obtained by mathematical model through calculation, the parameters in the model are determined by the measured data of offshore test, and the mathematical model is modified. The actual control model of 10KW power flow power generation system studied by the project is obtained. Aiming at the reliability problem of the device, this paper designs the impeller supporting frame of the power flow power generation system. By analyzing the force of the frame under various working conditions, the strength of the frame is guaranteed while minimizing the hindrance of the frame to the tidal current as far as possible. The reliability of the device is improved.
【學(xué)位授予單位】：太原科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：P743;TM612

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