發(fā)布時(shí)間：2018-04-25 11:01

  本文選題：太陽(yáng)能 + 并網(wǎng)發(fā)電��； 參考：《遼寧工程技術(shù)大學(xué)》2014年碩士論文

【摘要】：隨著現(xiàn)代經(jīng)濟(jì)的不斷發(fā)展進(jìn)步,不可再生能源將逐漸枯竭,探索新能源對(duì)人類(lèi)的發(fā)展有著重要的意義。太陽(yáng)能以其自身的優(yōu)勢(shì),是未來(lái)可大力開(kāi)發(fā)利用的清潔新能源,光伏并網(wǎng)發(fā)電技術(shù)的本質(zhì)就是將太陽(yáng)能發(fā)電系統(tǒng)和電網(wǎng)連接起來(lái),實(shí)現(xiàn)光伏發(fā)電并網(wǎng),在此對(duì)光伏并網(wǎng)技術(shù)作了進(jìn)一步研討。首先,對(duì)太陽(yáng)能技術(shù)發(fā)展和利用的背景,以及本文研究的意義進(jìn)行了說(shuō)明,對(duì)光伏并網(wǎng)的系統(tǒng)結(jié)構(gòu)和重要技術(shù)進(jìn)行了探討,提出了無(wú)變壓器的兩級(jí)結(jié)構(gòu)的并網(wǎng)方式。其次,針對(duì)并網(wǎng)發(fā)電系統(tǒng)中常見(jiàn)的孤島效應(yīng),本文對(duì)反孤島效應(yīng)作了深入研究,對(duì)孤島效應(yīng)主動(dòng)檢測(cè)法中主動(dòng)頻率偏移法和相位偏移法的進(jìn)行了仿真對(duì)比,得出相位偏移法的在孤島檢測(cè)上使電網(wǎng)供電的質(zhì)量更高。最后,對(duì)于光伏并網(wǎng)策略提出了基于細(xì)菌覓食優(yōu)化算法的雙閉環(huán)控制方案,并對(duì)設(shè)計(jì)方案進(jìn)行了驗(yàn)證。設(shè)計(jì)了基于TMS320LF2407型號(hào)的DSP的單相光伏并網(wǎng)發(fā)電系統(tǒng),對(duì)其硬件和軟件進(jìn)行了分析,為系統(tǒng)的研發(fā)和設(shè)計(jì)提供了一個(gè)可靠的實(shí)驗(yàn)平臺(tái)。
[Abstract]:With the continuous development and progress of modern economy, non-renewable energy will gradually dry up. It is of great significance to explore new energy for the development of human beings. Solar energy, with its own advantages, is a clean and new energy that can be developed and utilized in the future. The essence of photovoltaic grid-connected power generation technology is to connect solar power generation system with power grid to realize grid-connected photovoltaic power generation. In this paper, the photovoltaic grid-connected technology is further discussed. Firstly, the background of the development and utilization of solar energy technology and the significance of the research in this paper are explained, the system structure and important technology of grid-connected photovoltaic system are discussed, and the grid-connected mode of two-stage structure without transformer is put forward. Secondly, aiming at the common islanding effect in grid-connected power generation system, the anti-islanding effect is deeply studied in this paper, and the active frequency offset method and the phase offset method in the active detection method of islanding effect are simulated and compared. It is concluded that the phase shift method can improve the quality of power supply in islanding detection. Finally, a double closed loop control scheme based on bacterial foraging optimization algorithm is proposed for photovoltaic grid-connected strategy, and the design scheme is verified. The single-phase photovoltaic grid-connected generation system based on TMS320LF2407 model DSP is designed, and its hardware and software are analyzed, which provides a reliable experimental platform for the research and design of the system.
【學(xué)位授予單位】：遼寧工程技術(shù)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TM615

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