本文關(guān)鍵詞：基于異步電動機變頻調(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) 三相異步電動機 變頻矢量控制 軟啟動

【摘要】：隨著人類社會不斷進步和經(jīng)濟的快速發(fā)展,加快了化石能源消耗的速度,對化石能源的無限制使用不但會將其消耗殆盡而且在燃燒過程中會產(chǎn)生溫室氣體和霧霾。由于風(fēng)能在使用過程中不會造成環(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,正受到世界各國廣泛的關(guān)注并逐漸成為綠色能源的主角。我國西部地區(qū)風(fēng)能資源豐富,因地制宜地大規(guī)模開發(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,概括了國內(nèi)外研究現(xiàn)狀。針對偏遠地區(qū)人畜飲水和農(nóng)田灌溉用水困難的實際情況,研究風(fēng)力發(fā)電提水系統(tǒng)的組成結(jié)構(gòu),并對組成該系統(tǒng)的各個部分進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,由于電動機在全壓啟動時電流過大,導(dǎo)致定子繞組發(fā)熱加速絕緣老化,而且對逆變器造成沖擊。另外,由于風(fēng)速的不穩(wěn)定性,導(dǎo)致電動機不能穩(wěn)定運行,有時會產(chǎn)生堵轉(zhuǎn)現(xiàn)象,堵轉(zhuǎn)時間過長會燒毀電動機。因此本文提出了異步電動機變頻矢量控制方法和軟啟動控制方法,不僅可以使得電動機轉(zhuǎn)速實現(xiàn)平滑調(diào)速,而且可以減小啟動電流,起到保護逆變器及電動機的作用。再次,通過對偏遠地區(qū)居民家中的水井深度和家庭口用水量的調(diào)查,對風(fēng)力機、水泵和電動機進行了選型,并確定了蓄水池的容積。設(shè)計了一套離網(wǎng)型風(fēng)力發(fā)電提水系統(tǒng),并對該系統(tǒng)的控制電路參數(shù)進行了設(shè)計。最后,在MATLAB環(huán)境下,利用Simulink對所設(shè)計的風(fēng)力發(fā)電提水系統(tǒng)進行了效果驗證。結(jié)果表明,在不同風(fēng)速的條件下,采用軟啟動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)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TM614;TU991

【參考文獻】

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本文編號：1427678