發(fā)布時(shí)間：2018-01-08 05:10

  本文關(guān)鍵詞：太陽自動(dòng)追蹤光伏LED照明系統(tǒng)的研究　出處：《南昌大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 太陽自動(dòng)追蹤 光伏 LED照明 Atmega16單片機(jī)

【摘要】：隨著社會(huì)經(jīng)濟(jì)飛速的發(fā)展，人類對(duì)能源的需求也在日益增長，而地球上的能源畢竟是有限的,所以人類一直把目光投向于新能源的探索,而在新能源的開發(fā)利用中，太陽能具有諸多的優(yōu)勢(shì)，在許多領(lǐng)域得到很好的應(yīng)用。本文所研究的太陽自動(dòng)追蹤光伏LED照明系統(tǒng)是對(duì)太陽自動(dòng)追蹤系統(tǒng)研究的新發(fā)展和應(yīng)用。 首先，，本文在參考前人研究成果的基礎(chǔ)上，對(duì)太陽自動(dòng)追蹤方式進(jìn)行了分析和比較，提出了一種最佳方案，即：視日運(yùn)動(dòng)軌跡追蹤和四象限雙孔干涉光電檢測(cè)追蹤相結(jié)合的追蹤方式，該方式能夠準(zhǔn)確判斷太陽光照射角度的變化并且能夠使太陽能電池板始終保持垂直于太陽光線。 其次，本文設(shè)計(jì)了一種以Atmega16單片機(jī)作為控制核心的太陽自動(dòng)追蹤系統(tǒng)，主要包括光電檢測(cè)電路、單片機(jī)控制電機(jī)電路、時(shí)鐘和顯示電路的硬件設(shè)計(jì)以及相應(yīng)的主程序、光電檢測(cè)追蹤模塊程序、視日運(yùn)動(dòng)軌跡追蹤模塊程序、時(shí)鐘和顯示模塊程序的設(shè)計(jì)。 再次，在光伏LED照明系統(tǒng)中，由于蓄電池充放電裝置是整個(gè)系統(tǒng)的重要組成部分，本文的蓄電池充放電裝置主要通過采集當(dāng)前充放電控制電路的電壓和電流，從而實(shí)現(xiàn)對(duì)蓄電池的充、放電的精準(zhǔn)控制。為了實(shí)現(xiàn)最大功率點(diǎn)跟蹤(MPPT)，本文分析了不同的電路拓?fù)浣Y(jié)構(gòu)以及比較了幾種常用的先進(jìn)控制算法，并分別在太陽光照射強(qiáng)度、太陽能電池溫度保持不變的情況下，做了實(shí)驗(yàn)測(cè)試，通過測(cè)試分析總結(jié)出了，適合本文的最大功率點(diǎn)跟蹤算法，即改進(jìn)型擾動(dòng)觀測(cè)法MPPT。在保護(hù)蓄電池、提高能源利用率方面，本文提出了合理的充電控制策略，即變阻二階段的充電方法。該充電方法能夠?qū)崿F(xiàn)蓄電池的過壓和欠壓保護(hù)，同時(shí)能夠?qū)π铍姵剡M(jìn)行快速安全的充電。 最后，本文完成了相關(guān)的硬件和軟件設(shè)計(jì)，并進(jìn)行了部分實(shí)驗(yàn)測(cè)試。測(cè)試結(jié)果驗(yàn)證了本文設(shè)計(jì)方案的準(zhǔn)確性和可行性。
[Abstract]:With the rapid development of social economy, the human demand for energy is also increasing, and the energy on the earth is limited, so people have been focusing on the exploration of new energy. In the development and utilization of new energy, solar energy has many advantages. The solar automatic tracking photovoltaic LED illumination system studied in this paper is a new development and application of solar automatic tracking system. First of all, based on the previous research results, this paper analyzes and compares the solar automatic tracking methods, and puts forward an optimal scheme. That is, the tracking method is combined with the track tracking of the sun motion and the photoelectric detection and tracking of the four-quadrant two-hole interference. This method can accurately judge the change of the solar radiation angle and keep the solar panel perpendicular to the solar light. Secondly, this paper designs a solar automatic tracking system with Atmega16 microcontroller as the control core, mainly including photoelectric detection circuit, single-chip microcomputer control motor circuit. The hardware design of the clock and display circuit and the corresponding main program, the photoelectric detection and tracking module program, the sun motion track tracking module program, the clock and display module program design. Thirdly, in photovoltaic LED lighting system, battery charging and discharging device is an important part of the whole system. The battery charging and discharging device in this paper mainly collects the voltage and current of the current charge and discharge control circuit so as to achieve the accurate control of battery charge and discharge. In order to achieve the maximum power point tracking MPPTT). This paper analyzes the different circuit topology and compares several commonly used advanced control algorithms, and makes the experimental test under the condition that the solar radiation intensity and solar cell temperature remain the same. Through the test and analysis, it is concluded that the maximum power point tracking algorithm suitable for this paper, that is, the improved perturbation observation method MPPT. is used to protect the battery and improve the energy efficiency. This paper presents a reasonable charging control strategy, that is, the two-stage charging method of variable-resistance, which can realize the overvoltage and under-voltage protection of the battery, and at the same time, can charge the battery quickly and safely. Finally, the related hardware and software design is completed, and some experimental tests are carried out. The test results verify the accuracy and feasibility of the design scheme.
【學(xué)位授予單位】：南昌大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM923.34;TM914.4

【引證文獻(xiàn)】

相關(guān)期刊論文 前1條

1 周留賜;任尚坤;馬趙;;基于ATmega16的沖床自動(dòng)進(jìn)料系統(tǒng)設(shè)計(jì)[J];南昌航空大學(xué)學(xué)報(bào)(自然科學(xué)版);2015年03期

相關(guān)碩士學(xué)位論文 前1條

1 賀金徽;家用型屋頂光伏系統(tǒng)的研究[D];南昌大學(xué);2015年

本文編號(hào)：1395736