自動(dòng)化外文文獻(xiàn)翻譯--光伏逆變器的發(fā)展及優(yōu)勢(shì)-資料下載頁(yè)
2025-05-11 18:41本頁(yè)面
【導(dǎo)讀】一般由升壓回路和逆變橋式回路構(gòu)成。升壓回路把太陽(yáng)電池的直流。壓等價(jià)地轉(zhuǎn)換成常用頻率的交流電壓。逆變器主要由晶體管等開(kāi)關(guān)元件構(gòu)成，通。過(guò)有規(guī)則地讓開(kāi)關(guān)元件重復(fù)開(kāi)-關(guān)，使直流輸入變成交流輸出。這樣單純地由開(kāi)和關(guān)回路產(chǎn)生的逆變器輸出波形并不實(shí)用。一般需要采用高頻脈。然后讓脈沖波通過(guò)簡(jiǎn)單的濾波器形成正弦波。能和系統(tǒng)故障保護(hù)功能。行和停機(jī)功能及最大功率跟蹤控制功能。逆變器工作所需的輸出功率后，逆變器即自動(dòng)開(kāi)始運(yùn)行。當(dāng)太陽(yáng)電池組件輸出變小，逆變器輸出接近0時(shí)，逆變器便形成待機(jī)狀態(tài)。另外由于太陽(yáng)電池組件具有電壓隨電流增大而下降的特性，因此。由于2020年太陽(yáng)電池的價(jià)格偏高，為。了最大限度地利用太陽(yáng)電池，提高系統(tǒng)效率，必須設(shè)法提高逆變器的效率。網(wǎng)運(yùn)行時(shí)，為避免與公共電網(wǎng)的電力污染，也要求逆變器輸出正弦波電流。電池避免了蓄電池的二次污染，并可提高系統(tǒng)的平均無(wú)故障時(shí)間。聯(lián)網(wǎng)太陽(yáng)能光伏系統(tǒng)是世界各發(fā)達(dá)國(guó)家在光伏應(yīng)用領(lǐng)
【正文】 ovoltaic system separation and became an independent photovoltaic power generation system working condition. Some switching type photovoltaic power generation system, still can be in when to disconnect the power supply for general load, connect the power supply to emergency load. General switch type bined to the grid system with energy storage device. 4 a storage device grid photovoltaic power generation system 湖北理工學(xué)院 畢業(yè)設(shè)計(jì)（論文 ） 外文文獻(xiàn)翻譯 10 A storage device grid photovoltaic power generation system: is in the above several kind of photovoltaic power generation system according to the need configuration energy storage device. With energy storage device of photovoltaic system initiative is stronger, when the power grid in power, power brownouts and fault, independent operation, the normal power supply to the load. So with a storage device grid photovoltaic power generation system can be used as emergency munication power supply, medical equipment, gas stations, shelter directives and lighting, and other important or emergency load of power supply system. advantage (1) the use of clean, renewable natural energy, solar power consumption nonrenewable resources, limited carbon fossil energy, the use of no greenhouse gases and pollutant emission, and ecological environment harmonious, in line with the economic and social sustainable development strategy. (2) the power can be fed into the grid to power grid for energy storage device, dispense with battery, than independent solar photovoltaic system construction investment can reduce 35% one 45%, so that the generating cost greatly reduced. Save battery to avoid the battery of secondary pollution, and can improve the system of the mean time to failure. (3) the photovoltaic battery ponents and building perfect bination, can power and can be used as building materials and decoration materials, make full use of material resources play a variety of functions, not only is helpful to reduce the construction cost, and also improve the content of science and technology building, increase selling point. (4) distributed construction, came near to the in situ dispersion reality, enter and exit grid agile, is advantageous to enhance power system against war and disasters, and to improve the ability of power system load balance, and can reduce the loss of line. (5) the load effect. Networking solar photovoltaic system is the world of the advanced countries in the development of photovoltaic application fields are hot and 湖北理工學(xué)院 畢業(yè)設(shè)計(jì)（論文 ） 外文文獻(xiàn)翻譯 11 key, is the world39。s solar photovoltaic power generation, the development trend of the mainstream of the huge market and broad prospects.
畢業(yè)設(shè)計(jì)相關(guān)推薦
鄂ICP備17016276號(hào)-1