ResearchDGS&PCA Lab

PV

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    ¿¬±¸ÁÖÁ¦ (Research Areas)


    ¡ß Power Conversion Circuit Design and Control Algorithm for Electric Vehicles (EV) and Fuel Cell EV

    ¡ß Power Conversion Applications : Electric Machine Drives (DC/BLDC/PMSM/IM) based on Microprocessors,
       Design and Control of Power Converters (DC to DC, AC to DC, DC to AC, AC to AC) 

    ¡ß Power Electronics Circuits and Control, Interface for Distributed Generation Systems Using Renewable Energy Sources (Wind Turbines/Photovoltaic Arrays/Fuel Cells/Energy Storage Devices)

    ¡ß Driving Circuits and Driving Methods of AC Plasma Display Panel (PDP) and Liquid Crystal Display (LCD)


      

     Å¾籤¹ßÀü (photovoltaic power generation, ÷¼åÕÎÃÛ¡ï³)Àº ÇÞºûÀ» Á÷·ù Àü±â·Î ¹Ù²Ù¾î Àü·ÂÀ» »ý»êÇÏ´Â ¹ßÀü ¹æ¹ýÀÌ´Ù. ž籤¹ßÀüÀº ¿©·¯°³ÀÇ Å¾ç ÀüÁöµéÀÌ ºÙ¾îÀִ ž籤 ÆгÎÀ» ÀÌ¿ëÇÑ´Ù. Àç»ý°¡´É ¿¡³ÊÁö¿¡ ´ëÇÑ ¼ö¿ä°¡ Áõ°¡ÇÔ¿¡ µû¶ó, žç ÀüÁö¿Í ž籤 ¾î·¹ÀÌÀÇ »ý»êµµ Å©°Ô ´Ã¾î³ª°í ÀÖ´Â Ãß¼¼ÀÌ´Ù.


     Å¾籤¹ßÀü·®Àº 2³â¸¶´Ù µÎ ¹è¾¿ Áõ°¡ÇÏ¿´À¸¸ç, 2002³â ÀÌ·¡·Î ¸Å³â Æò±Õ 48%ÀÇ ¼ºÀåÀ» ÇÏ¿´°í, ¿¡³ÊÁö ±â¼ú ºÐ¾ß¿¡¼­ °¡Àå ºü¸£°Ô ¼ºÀåÇÏ°í ÀÖ´Â ºÐ¾ßÀÌ´Ù. ÀáÁ¤ÀûÀÎ ÀÚ·á¿¡ ÀÇÇϸé 2007³â ¸»¿¡, Àü ¼¼°èÀÇ ´©Àû »ý»ê·®Àº 12,400MW¿´´Ù. ÀÌ »ý»ê ´É·ÂÀÇ ¾à 90%´Â °èÅ뿬°èÇüÀ¸·Î ÀÌ·ç¾îÁ® ÀÖ´Ù. ¼³Ä¡´Â Áö»ó(¶Ç´Â ³óÀåÀ̳ª ÃÊÁö) ¶Ç´Â °Ç¹°ÀÏüÇü ž籤 ¹ßÀü(Building Integrated Photovoltaic ¶Ç´Â BIPV)À¸·Î ¾Ë·ÁÁø °Ç¹°ÀÇ ÁöºØÀ̳ª º®¸éÀÌ´Ù.


     Å¾籤 Àü±â¿¡ ´ëÇÑ Æ¯ÇýÀûÀÎ ±âÁØ°¡°Ý Àǹ«±¸¸ÅÁ¦¿Í ¿ä±Ý»ó°èÁ¦ °°Àº ÀçÁ¤ÀûÀÎ Àå·ÁÃ¥Àº È£ÁÖ, µ¶ÀÏ, À̽º¶ó¿¤, ÀϺ» ±×¸®°í ¹Ì±¹À» Æ÷ÇÔÇÑ ¸¹Àº ³ª¶ó¿¡¼­ ž籤 ¹ßÀü ¼³ºñÀÇ ¼³Ä¡¸¦ È®´ëÇϵµ·Ï Çß´Ù.


< Ãâó : http://ko.wikipedia.org/wiki/%ED%83%9C%EC%96%91%EA%B4%91_%EB%B0%9C%EC%A0%84>

 



< Ãâó : http://www.westpower.com>



     Photovoltaics (PV) is the conversion of light into electricity using semiconducting materials that exhibit the photovoltaic effect, a phenomenon studied in physics, photochemistry, and electrochemistry. A typical photovoltaic system employs solar panels, each comprising a number of solar cells, which generate electrical power. PV installations may be ground-mounted, rooftop mounted or wall mounted. The mount may be fixed, or use a solar tracker to follow the sun across the sky.


     Solar PV has specific advantages as an energy source: once installed, its operation generates no pollution and no greenhouse gas emissions, it shows simple scalability in respect of power needs and silicon has large availability in the Earth¡¯s crust.


     PV systems have the major disadvantage that the power output works best with direct sunlight, so about 10-25% is lost if a tracking system is not used. Dust, clouds, and other obstructions in the atmosphere also diminish the power output. Another important issue is the concentration of the production in the hours corresponding to main insolation, which do not usually match the peaks in demand in human activity cycles. Unless current societal patterns of consumption and electrical networks adjust to this scenario, electricity still needs to be stored for later use or made up by other power sources, usually hydrocarbons.


     Photovoltaic systems have long been used in specialized applications, and standalone and grid-connected PV systems have been in use since the 1990s. They were first mass-produced in 2000, when German environmentalists and the Eurosolar organization got government funding for a ten thousand roof program. Advances in technology and increased manufacturing scale have in any case reduced the cost, increased the reliability, and increased the efficiency of photovoltaic installations. Net metering and financial incentives, such as preferential feed-in tariffs for solar-generated electricity, have supported solar PV installations in many countries. More than 100 countries now use solar PV.


     After hydro and wind powers, PV is the third renewable energy source in terms of global capacity. At the end of 2016, worldwide installed PV capacity increased to more than 300 gigawatts (GW), covering approximately two percent of global electricity demand. China, followed by Japan and the United States, is the fastest growing market, while Germany remains the world's largest producer, with solar PV providing seven percent of annual domestic electricity consumption. With current technology (as of 2013), photovoltaics recoups the energy needed to manufacture them in 1.5 years in Southern Europe and 2.5 years in Northern Europe.


< Source : https://en.wikipedia.org/wiki/Photovoltaics >


 


< Source : https://www.nrel.gov>