本文關(guān)鍵詞： 卷盤式噴灌機 無刷直流電機 速度控制 無線監(jiān)控 安卓客戶端　出處：《江蘇大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：中國作為傳統(tǒng)的農(nóng)業(yè)大國,農(nóng)業(yè)用水一直是備受關(guān)注的焦點。根據(jù)2015年10月通過的《中共中央關(guān)于制定國民經(jīng)濟和社會發(fā)展第十三個五年規(guī)劃的建議》,中國將實行最嚴格的水資源管理制度,因此,創(chuàng)新灌溉設(shè)備、提高灌溉效率,推進噴灌、微灌在內(nèi)的節(jié)水灌溉技術(shù)是未來我國農(nóng)業(yè)發(fā)展的主要方向。卷盤式噴灌機具有價格適中、操作簡單、噴灑均勻、灌溉效率高等優(yōu)點,非常適合我國國情,在未來擁有非常大的市場潛力。但是,我國目前使用的卷盤式噴灌機普遍采用水渦輪作為PE管回收的動力,通過調(diào)節(jié)閥的開度控制流量進而控制卷管回收的速度。機械式水渦輪固有的特性也可能造成卷盤回收速度不穩(wěn)定、低速工況較差、噴灑不均勻等問題。本文以應(yīng)用較廣的JP75-250/D型電驅(qū)動卷盤式噴灌機為例,針對無刷直流電機自動控制相關(guān)問題,在江蘇省農(nóng)業(yè)科技支撐計劃項目“低能耗自動卷盤式智能農(nóng)業(yè)灌溉裝備研究與開發(fā)”(項目編號:BE2012385)資助下,開展了以下創(chuàng)新性研究:1.針對傳統(tǒng)的機械式水渦輪低速工況差、調(diào)速范圍窄、速度調(diào)節(jié)不便等不足之處,使用無刷直流電機代替?zhèn)鹘y(tǒng)的機械式水渦輪作為卷盤式噴灌機的動力系統(tǒng),設(shè)計基于STM32的控制器,引入速度閉環(huán)控制,加強對擾動的抗干擾、自恢復(fù)能力,增強卷管回收的穩(wěn)定性。2.卷盤式噴灌機在作業(yè)過程中往往涉及到卷盤層數(shù)的切換,隨著卷盤回卷半徑的增加,為了保持卷管回收速度的穩(wěn)定性需要相應(yīng)的改變電機轉(zhuǎn)速。傳統(tǒng)的調(diào)節(jié)方式一般為現(xiàn)場工作人員根據(jù)經(jīng)驗手動調(diào)速,本文系統(tǒng)將根據(jù)預(yù)設(shè)工況參數(shù)和經(jīng)驗公式編制程序自動控制電機轉(zhuǎn)速的切換,保證卷盤式噴灌機作業(yè)的自動化操作。3.針對傳統(tǒng)卷盤式噴灌機作業(yè)時需要工人參與的狀況,基于物聯(lián)網(wǎng)技術(shù)設(shè)計了基于安卓系統(tǒng)的客戶端,實現(xiàn)操作人員遠程監(jiān)控卷盤式噴灌機的運行的功能。通過試驗驗證,無刷直流電機可以穩(wěn)定在設(shè)定轉(zhuǎn)速上,在10%的負載擾動下轉(zhuǎn)速可以較快的回到設(shè)定值。基于安卓系統(tǒng)的客戶端可以遠程監(jiān)控?zé)o刷直流電機的運行,根據(jù)需要反饋電機相關(guān)工作狀態(tài);通過在客戶端設(shè)定PE管回收速度、傳動擋位、PE管工作長度即可自動生成一次完整作業(yè)的各個工況點并自動控制電機做出相應(yīng)的調(diào)整。
[Abstract]:China is a traditional agricultural country. Agricultural water use has always been the focus of attention. According to the "recommendations of the CPC Central Committee on the Thirteenth Five-Year Plan for National Economic and Social Development" adopted in October 2015. China will implement the most stringent water resources management system, therefore, innovative irrigation equipment, improve irrigation efficiency, and promote sprinkler irrigation. The water-saving irrigation technology, including micro-irrigation, is the main direction of agricultural development in the future. The coil and disc sprinkler has the advantages of moderate price, simple operation, uniform spraying, high irrigation efficiency, and so on, which is very suitable for the national conditions of our country. In the future, there is a great market potential. However, water turbine is widely used as the power of PE pipe recovery in the current coiled disk sprinkler irrigation machine in China. The inherent characteristics of the mechanical water turbine may also lead to instability of the reel recovery speed and poor low speed conditions. This paper takes JP75-250/D type electric drive coil type sprinkler irrigation machine as an example, aiming at the related problems of brushless DC motor automatic control. Supported by Jiangsu Agricultural Science and Technology support Project "Research and Development of Intelligent Irrigation equipment with low Energy consumption, automatic Coil and disk Type" (Project No.: BEBE2012385). The following innovative research was carried out: 1. Aiming at the shortcomings of traditional mechanical water turbine, such as low speed working condition, narrow speed range and inconvenient speed regulation, etc. The brushless DC motor is used to replace the traditional mechanical water turbine as the power system of the coil irrigation machine. The controller based on STM32 is designed and the speed closed-loop control is introduced to enhance the anti-interference to the disturbance. Self-recovery ability, enhance the stability of coil tube recovery .2. the coil irrigation machine in the process of operation often involves in the number of coil layer switching, with the increase of the coil back radius. In order to maintain the stability of the reclaiming speed of the coil, the speed of the motor needs to be changed accordingly. The traditional regulation method is usually manual speed regulation for the field workers according to their experience. According to the preset operating condition parameters and empirical formula, the system will compile a program to automatically control the speed switch of the motor. To ensure the automatic operation of coiling and disk sprinkler machine. 3. Aiming at the situation that workers are required to participate in the traditional coiling and disk sprinkler machine operation, the client based on Android system is designed based on the technology of Internet of things. To realize the function of remote monitoring and controlling the operation of the coil and disk sprinkler irrigation machine by the operator. Through the test, the brushless DC motor can be stabilized on the set speed. The speed can return to the set value quickly under the load disturbance of 10%. The client based on Android can monitor the operation of brushless DC motor remotely and feedback the working status of the motor according to the need. By setting the recovery speed of PE pipe at the client end, the working length of PE pipe can be automatically generated and the motor can be adjusted automatically.
【學(xué)位授予單位】：江蘇大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：S277.94

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