發(fā)布時(shí)間：2018-06-27 21:29

  本文選題：無線傳感器網(wǎng)絡(luò) + 太陽能供電系統(tǒng)��； 參考：《寧波大學(xué)》2017年碩士論文

【摘要】：在能源危機(jī)的形勢下,太陽能作為新能源的代表,其關(guān)鍵技術(shù)已經(jīng)有了極大的進(jìn)步。而隨著移動(dòng)互聯(lián)網(wǎng)與通信技術(shù)的快速發(fā)展,無線傳感器網(wǎng)絡(luò)(Wireless Sensor Network,WSN)的應(yīng)用場合日益增多。因WSN具有容錯(cuò)能力強(qiáng)、組織性好的特點(diǎn),在環(huán)境監(jiān)測和信息采集等領(lǐng)域應(yīng)用十分廣泛。受監(jiān)測和信息采集所處位置的影響,WSN分布條件的差異導(dǎo)致供電需求的不一,這就對各種復(fù)雜條件下信息采集系統(tǒng)的能源保障問題提出了更高的要求。因此,把太陽能應(yīng)用到WSN領(lǐng)域,研究探討WSN的太陽能供電系統(tǒng)具有重大意義。本文首先簡單介紹了WSN的基本技術(shù),然后就光伏電池的發(fā)電原理進(jìn)行分析,建立相關(guān)的物理模型基本解析,并對光伏電池板MPPT(Maximum Power Point Tracking)算法中的電導(dǎo)增量法(Incremental Conductance algorithm,INCC algorithm)和干擾觀察法(Perturb and Observe algorithm,PO algorithm)進(jìn)行了理論上的推導(dǎo)。以此為基礎(chǔ),提出了一種自適應(yīng)步長的INCC algorithm,從而直接關(guān)聯(lián)自適應(yīng)步長與輸出電壓。對所建立的聯(lián)系進(jìn)行了仿真測試,給出了相關(guān)測試數(shù)據(jù)。同時(shí),本文針對特殊環(huán)境下WSN環(huán)境監(jiān)控系統(tǒng)的供電問題,進(jìn)行了特殊環(huán)境下WSN太陽能供電系統(tǒng)的硬件電路設(shè)計(jì),設(shè)計(jì)了一種魯棒性較強(qiáng)的太陽能的供電系統(tǒng)。該系統(tǒng)允許多路電源同時(shí)輸入為鋰電池充電,設(shè)計(jì)中采用外部USB電源和太陽能電池板為例共同為鋰電池進(jìn)行充電。此外,還具備選擇控制存儲(chǔ)功能,根據(jù)優(yōu)先級原理,選擇性的為WSN節(jié)點(diǎn)供電;使用串口式NOR型閃存,存儲(chǔ)重要參數(shù)信息;針對山地等苛刻的環(huán)境,增設(shè)浪涌保護(hù)電路;利用圖形界面在PC機(jī)和移動(dòng)終端進(jìn)行顯示。最后,對本文中的研究內(nèi)容進(jìn)行了總結(jié)分析,查找了研究過程中遇到的盲點(diǎn)和不足,同時(shí)探討了在今后的研究工作中需要深入研究的問題。
[Abstract]:In the situation of energy crisis, solar energy as the representative of new energy, its key technology has made great progress. With the rapid development of mobile Internet and communication technology, the application of Wireless Sensor Network (WSN) is increasing day by day. WSN is widely used in environmental monitoring and information collection because of its strong fault tolerance and good organization. The different distribution conditions of WSN caused by the location of monitoring and information collection lead to different demand of power supply, which puts forward higher requirements for the energy security of information acquisition system under various complex conditions. Therefore, it is of great significance to apply solar energy to the field of WSN and study the solar power supply system of WSN. In this paper, the basic technology of WSN is introduced briefly, then the principle of photovoltaic cell generation is analyzed, and the related physical model is established. Theoretical derivation of incremental algorithm (InCC algorithm) and Perturb and observe algorithm (algorithm) in photovoltaic panel MPPT (maximum Power Point tracking) algorithm is also presented. Based on this, an adaptive step size algorithm is proposed to directly correlate the adaptive step size with the output voltage. The relation is simulated and the relevant test data are given. At the same time, aiming at the power supply of WSN environment monitoring system under special environment, this paper designs the hardware circuit of WSN solar power supply system under special environment, and designs a kind of solar power supply system with strong robustness. The system allows multiple power sources to be input to charge the lithium battery at the same time. In the design, the external USB power supply and solar panel are used to charge the lithium battery together. In addition, it also has the function of selective control and storage, according to the principle of priority, selectively supplying power to WSN node, using serial port nor flash memory to store important parameter information, adding surge protection circuit for harsh environment such as mountain area, etc. The graphical interface is used to display on PC and mobile terminal. Finally, the research contents in this paper are summarized and analyzed, the blind spots and deficiencies encountered in the research process are found, and the problems that need to be further studied in the future research work are also discussed.
【學(xué)位授予單位】：寧波大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TP212.9;TN929.5

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本文編號：2075339