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Trang 6ABSTRACT
The phenomenon of electromagnetic induction caused by lightning (Lightning Induced Transient) is an important issue due to its great influence on electrical equipment, especially electronic components In photovoltaic systems, panels placed outdoors are the most susceptible to electromagnetic induction caused by lightning
)RU WKH 9LHWQDP¶V SRZHU V\VWHP RQ -XO\ WKH SKHQRPHQRQ RI OLJKWQLQJinduction on photovoltaic systems occurred at Son My 3.1 Solar Power Plant, causing damage to more than 400 panels Realizing the great harm caused by lightning electromagnetic induction to solar systems, the content of the thesis will focus on detailed research on the phenomenon of electromagnetic induction due to lightning to photovoltaic system, calculate the induced current, electric and magnetic fields induced on the solar panels From there, consider the effect of the phenomenon on the device and calculate the appropriate solution to help minimize the effect of this phenomenon
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1.1 Lý thuyӃt vӅ hiӋQWѭӧQJTXiÿLӋn áp khí quyӇn
1.1.1 S hình thành giông sét
Sét là kӃt quҧ cӫa sӵ hình thành các khӕi mây ÿӕLOѭX&yEDFѫFKӃ chính có tҫm quan trӑng trong viӋc hình thành giông sét ± bҫu khí quyӇn không әQÿӏQKÿӝ ҭPYjFiFFѫFKӃ kích hoҥt liên quan [15]
Trong mӝt bҫu khí quyӇn không әQÿӏnh, sӵ ÿӕLOѭXOjPFKRFiFNK{QJNKtQyQJKѫQWăQJlên do mұWÿӝ cӫa chúng thҩSKѫQNK{QJNKt[XQJTXDQK1Kӳng luӗng không khí nóng này chӭDKѫLҭm và nӣ UDNKLFK~QJWăQJOrQGRiSVXҩt khí quyӇn giҧm xuӕng Khi các luӗng khí này mӣ rӝng, chúng bҳt ÿҫu nguӝLÿL1KLӅu luӗng không khí nóng bӕc lên dүn ÿӃn hình thành các dòng thác mây, có thӇ mӣ rӝQJÿӃQÿӝ cao 7km [3]
NӃXNK{QJNKtWURQJÿӃn nhiӋWÿӝ nhҩWÿuQKFiFJLӑWQѭӟc bҳWÿҫu hình thành và nhiӋt tiӅm ҭQÿѭӧc giҧi phóng trong quá trình này Các giӑWQѭӟc trong không khí tҥo thành cáFÿiPPk\WtFKÿLӋn, và nhiӋt tӓa ra sӁ kích thích sӵ phát triӇQÿLOrQFӫDÿiPPk\>@
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1.1.2 7tFKÿL͏QWURQJÿiPPk\
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