本文關(guān)鍵詞：基于異步電動(dòng)機(jī)變頻調(diào)速的風(fēng)力發(fā)電提水系統(tǒng)研究　出處：《內(nèi)蒙古大學(xué)》2017年碩士論文　論文類(lèi)型：學(xué)位論文

  更多相關(guān)文章： 風(fēng)力發(fā)電提水系統(tǒng) 三相異步電動(dòng)機(jī) 變頻矢量控制 軟啟動(dòng)

【摘要】：隨著人類(lèi)社會(huì)不斷進(jìn)步和經(jīng)濟(jì)的快速發(fā)展,加快了化石能源消耗的速度,對(duì)化石能源的無(wú)限制使用不但會(huì)將其消耗殆盡而且在燃燒過(guò)程中會(huì)產(chǎn)生溫室氣體和霧霾。由于風(fēng)能在使用過(guò)程中不會(huì)造成環(huán)境污染而且取之不盡用之不竭,在全球倡導(dǎo)可持續(xù)發(fā)展的背景下,正受到世界各國(guó)廣泛的關(guān)注并逐漸成為綠色能源的主角。我國(guó)西部地區(qū)風(fēng)能資源豐富,因地制宜地大規(guī)模開(kāi)發(fā)和應(yīng)用風(fēng)力發(fā)電提水技術(shù)不但能夠有效地利用風(fēng)能資源,而且可以解決偏遠(yuǎn)地區(qū)人畜飲水及農(nóng)田灌溉用水的難題。首先,本文介紹了風(fēng)力發(fā)電提水系統(tǒng)的研究背景和意義,概括了國(guó)內(nèi)外研究現(xiàn)狀。針對(duì)偏遠(yuǎn)地區(qū)人畜飲水和農(nóng)田灌溉用水困難的實(shí)際情況,研究風(fēng)力發(fā)電提水系統(tǒng)的組成結(jié)構(gòu),并對(duì)組成該系統(tǒng)的各個(gè)部分進(jìn)行了工作原理以及特性的分析。其次,在風(fēng)力發(fā)電提水系統(tǒng)中,由于電動(dòng)機(jī)在全壓?jiǎn)?dòng)時(shí)電流過(guò)大,導(dǎo)致定子繞組發(fā)熱加速絕緣老化,而且對(duì)逆變器造成沖擊。另外,由于風(fēng)速的不穩(wěn)定性,導(dǎo)致電動(dòng)機(jī)不能穩(wěn)定運(yùn)行,有時(shí)會(huì)產(chǎn)生堵轉(zhuǎn)現(xiàn)象,堵轉(zhuǎn)時(shí)間過(guò)長(zhǎng)會(huì)燒毀電動(dòng)機(jī)。因此本文提出了異步電動(dòng)機(jī)變頻矢量控制方法和軟啟動(dòng)控制方法,不僅可以使得電動(dòng)機(jī)轉(zhuǎn)速實(shí)現(xiàn)平滑調(diào)速,而且可以減小啟動(dòng)電流,起到保護(hù)逆變器及電動(dòng)機(jī)的作用。再次,通過(guò)對(duì)偏遠(yuǎn)地區(qū)居民家中的水井深度和家庭口用水量的調(diào)查,對(duì)風(fēng)力機(jī)、水泵和電動(dòng)機(jī)進(jìn)行了選型,并確定了蓄水池的容積。設(shè)計(jì)了一套離網(wǎng)型風(fēng)力發(fā)電提水系統(tǒng),并對(duì)該系統(tǒng)的控制電路參數(shù)進(jìn)行了設(shè)計(jì)。最后,在MATLAB環(huán)境下,利用Simulink對(duì)所設(shè)計(jì)的風(fēng)力發(fā)電提水系統(tǒng)進(jìn)行了效果驗(yàn)證。結(jié)果表明,在不同風(fēng)速的條件下,采用軟啟動(dòng)和變頻矢量控制方法,風(fēng)力發(fā)電提水系統(tǒng)仍然能夠穩(wěn)定、高效的運(yùn)行。
[Abstract]:With the continuous progress of human society and the rapid development of economy, the speed of fossil energy consumption has been accelerated. The unlimited use of fossil energy will not only exhaust it, but also produce greenhouse gases and haze in the process of combustion. Since wind energy will not cause environmental pollution in the process of use and inexhaustible. In the context of global advocacy for sustainable development, it has been widely concerned by the world and gradually become the protagonist of green energy. The western region of China is rich in wind energy resources. According to local conditions, the large-scale development and application of wind power water lifting technology not only can effectively use wind energy resources, but also can solve the problems of drinking water and irrigation water for people and livestock in remote areas. First of all. This paper introduces the research background and significance of wind-power pumping system, summarizes the research status at home and abroad, aiming at the difficult situation of drinking water for human and livestock and irrigation water for farmland in remote areas. The structure of the wind-powered water lifting system is studied, and the working principle and characteristics of each part of the system are analyzed. Secondly, in the wind-powered water lifting system. Due to the excessive current of the motor at full voltage start-up, the stator winding heating accelerates the insulation aging, and causes the shock to the inverter. In addition, because of the instability of the wind speed, the motor can not operate stably. Sometimes the phenomenon of clogging will occur and the motor will be destroyed if the time of blocking is too long. So this paper proposes the variable frequency vector control method and the soft start control method of asynchronous motor which can not only make the speed of motor smooth speed adjustment. Moreover, it can reduce the starting current and protect the inverter and motor. Thirdly, through the investigation of the depth of the well and the water consumption of the home in the remote area, the wind turbine is investigated. The pump and motor are selected, and the volume of the reservoir is determined. An off-grid wind power lift system is designed, and the control circuit parameters of the system are designed. Finally. In the MATLAB environment, the effect of the designed wind-power pumping system is verified by using Simulink. The results show that under the different wind speed conditions. With soft start and variable frequency vector control, the wind power pumping system can still operate stably and efficiently.
【學(xué)位授予單位】：內(nèi)蒙古大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TM614;TU991

【參考文獻(xiàn)】

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本文編號(hào)：1427678