{"id":3187,"date":"2024-11-27T15:32:34","date_gmt":"2024-11-27T07:32:34","guid":{"rendered":"https:\/\/todos-china.com\/?p=3187"},"modified":"2024-12-09T13:49:10","modified_gmt":"2024-12-09T05:49:10","slug":"cac-bien-phap-tao-ra-va-ngan-ngua-hieu-ung-diem-nhiet-trong-cac-mo-dun-quang-dien","status":"publish","type":"post","link":"https:\/\/todos-china.com\/vi\/generation-and-prevention-measures-of-thermal-spot-effect-in-photovoltaic-modules\/","title":{"rendered":"C\u00e1c bi\u1ec7n ph\u00e1p t\u1ea1o ra v\u00e0 ng\u0103n ng\u1eeba hi\u1ec7u \u1ee9ng \u0111i\u1ec3m nhi\u1ec7t trong c\u00e1c m\u00f4-\u0111un quang \u0111i\u1ec7n"},"content":{"rendered":"<h2>Qu\u1ea3n l\u00fd hi\u1ec7u \u1ee9ng \u0111i\u1ec3m n\u00f3ng trong c\u00e1c m\u00f4-\u0111un quang \u0111i\u1ec7n<\/h2>\n<p>Hi\u1ec7u \u1ee9ng \u0111i\u1ec3m n\u00f3ng trong c\u00e1c m\u00f4-\u0111un quang \u0111i\u1ec7n l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn do nhi\u1ec1u y\u1ebfu t\u1ed1 g\u00e2y ra v\u00e0 c\u00f3 nh\u1eefng bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba t\u01b0\u01a1ng \u1ee9ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n:<\/p>\n<h2>Nguy\u00ean nh\u00e2n c\u1ee7a Hi\u1ec7u \u1ee9ng \u0110i\u1ec3m n\u00f3ng<\/h2>\n<ul>\n<li><strong>B\u00f3ng \u0111\u1ed5<\/strong>: Khi m\u1ed9t ph\u1ea7n cell pin c\u1ee7a m\u00f4-\u0111un quang \u0111i\u1ec7n b\u1ecb che khu\u1ea5t (b\u1edfi l\u00e1 c\u00e2y, b\u1ee5i, ph\u00e2n chim, v.v.), c\u00e1c cell pin n\u00e0y c\u00f3 th\u1ec3 chuy\u1ec3n sang tr\u1ea1ng th\u00e1i ph\u00e2n c\u1ef1c ng\u01b0\u1ee3c, ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng v\u00e0 g\u00e2y ra s\u1ef1 gia t\u0103ng nhi\u1ec7t \u0111\u1ed9 c\u1ee5c b\u1ed9. Nhi\u1ec7t t\u00edch t\u1ee5 n\u00e0y c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c \u0111i\u1ec3m n\u00f3ng, c\u00f3 kh\u1ea3 n\u0103ng l\u00e0m h\u1ecfng cell pin ho\u1eb7c v\u1eadt li\u1ec7u bao b\u1ecdc.<cite>11<\/cite><cite>18<\/cite><\/li>\n<li><strong>L\u1ed7i b\u00ean trong<\/strong>: C\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng b\u00ean trong cell pin, ch\u1eb3ng h\u1ea1n nh\u01b0 l\u1ed7i b\u00ean trong ho\u1eb7c h\u00e0n k\u00e9m, c\u0169ng c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn hi\u1ec7u \u1ee9ng \u0111i\u1ec3m n\u00f3ng. Nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y t\u1ea1o ra \u0111i\u1ec7n tr\u1edf cao b\u1ea5t th\u01b0\u1eddng trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh, d\u1eabn \u0111\u1ebfn t\u0103ng m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng v\u00e0 l\u00e0m n\u00f3ng c\u1ee5c b\u1ed9.<cite>4<\/cite><\/li>\n<li><strong>Thi\u1ebft k\u1ebf m\u00f4-\u0111un k\u00e9m<\/strong>:N\u1ebfu thi\u1ebft k\u1ebf c\u00e1c m\u00f4-\u0111un quang \u0111i\u1ec7n kh\u00f4ng ph\u00f9 h\u1ee3p, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c \u00f4 \u0111\u01b0\u1ee3c \u0111\u1eb7t qu\u00e1 g\u1ea7n nhau ho\u1eb7c s\u1eafp x\u1ebfp kh\u00f4ng \u0111\u00fang c\u00e1ch, c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng che b\u00f3ng v\u00e0 \u0111i\u1ec3m n\u00f3ng.<cite>11<\/cite><cite>18<\/cite><cite>19<\/cite><\/li>\n<\/ul>\n<h2>T\u00e1c \u0111\u1ed9ng c\u1ee7a Hi\u1ec7u \u1ee9ng \u0110i\u1ec3m n\u00f3ng<\/h2>\n<ul>\n<li><strong>Hi\u1ec7u su\u1ea5t m\u00f4-\u0111un gi\u1ea3m<\/strong>: Hi\u1ec7u \u1ee9ng \u0111i\u1ec3m n\u00f3ng l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 c\u00f4ng su\u1ea5t \u0111\u1ea7u ra c\u1ee7a c\u00e1c cell pin b\u1ecb che khu\u1ea5t, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t t\u1ed5ng th\u1ec3 c\u1ee7a m\u00f4-\u0111un quang \u0111i\u1ec7n. D\u1eef li\u1ec7u th\u1ef1c nghi\u1ec7m cho th\u1ea5y hi\u1ec7u \u1ee9ng \u0111i\u1ec3m n\u00f3ng c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m c\u00f4ng su\u1ea5t \u0111\u1ea7u ra c\u1ef1c \u0111\u1ea1i kho\u1ea3ng 10%.<cite>2<\/cite><\/li>\n<li><strong>Nguy c\u01a1 an to\u00e0n<\/strong>: Hi\u1ec7u \u1ee9ng \u0111i\u1ec3m n\u00f3ng k\u00e9o d\u00e0i l\u00e0m t\u0103ng t\u1ed1c \u0111\u1ed9 l\u00e3o h\u00f3a m\u00f4-\u0111un v\u00e0 c\u00f3 th\u1ec3 g\u00e2y ra h\u1ecfa ho\u1ea1n, g\u00e2y ra r\u1ee7i ro an to\u00e0n cho c\u00e1c nh\u00e0 m\u00e1y \u0111i\u1ec7n quang \u0111i\u1ec7n.<cite>19<\/cite><\/li>\n<\/ul>\n<h2>C\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba<\/h2>\n<ul>\n<li><strong>C\u00e0i \u0111\u1eb7t \u0111i\u1ed1t Bypass<\/strong>\n<ul>\n<li><strong>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng<\/strong>: M\u1ed9t diode bypass \u0111\u01b0\u1ee3c m\u1eafc song song \u1edf c\u1ea3 hai \u0111\u1ea7u c\u1ee7a m\u1ed7i chu\u1ed7i cell. Khi cell b\u1ecb che khu\u1ea5t chuy\u1ec3n sang tr\u1ea1ng th\u00e1i ph\u00e2n c\u1ef1c ng\u01b0\u1ee3c, diode s\u1ebd d\u1eabn \u0111i\u1ec7n, l\u00e0m ng\u1eafn m\u1ea1ch ph\u1ea7n b\u1ecb che khu\u1ea5t v\u00e0 gi\u1ea3m d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua, do \u0111\u00f3 gi\u1ea3m l\u01b0\u1ee3ng nhi\u1ec7t t\u1ecfa ra.<cite>1<\/cite><cite>2<\/cite><cite>3<\/cite><\/li>\n<li><strong>X\u00e1c minh hi\u1ec7u \u1ee9ng<\/strong>: C\u00e1c m\u00f4 ph\u1ecfng v\u00e0 th\u1eed nghi\u1ec7m th\u1ef1c t\u1ebf cho th\u1ea5y vi\u1ec7c l\u1eafp \u0111\u1eb7t diode bypass c\u00f3 th\u1ec3 gi\u1ea3m \u0111\u00e1ng k\u1ec3 \u0111i\u1ec7n \u00e1p \u1edf c\u1ea3 hai b\u00ean c\u1ee7a cell pin b\u1ecb che khu\u1ea5t, ng\u0103n ch\u1eb7n d\u00f2ng \u0111i\u1ec7n qu\u00e1 m\u1ee9c v\u00e0 ki\u1ec3m so\u00e1t hi\u1ec7u qu\u1ea3 hi\u1ec7u \u1ee9ng \u0111i\u1ec3m n\u00f3ng. D\u1eef li\u1ec7u th\u1ef1c nghi\u1ec7m cho th\u1ea5y khi l\u1eafp \u0111\u1eb7t diode bypass, d\u00f2ng \u0111i\u1ec7n gi\u1ea3m \u0111\u00e1ng k\u1ec3 v\u00e0 \u0111\u1ed9 suy gi\u1ea3m c\u00f4ng su\u1ea5t \u0111\u1ea7u ra t\u1ed1i \u0111a kh\u00f4ng v\u01b0\u1ee3t qu\u00e1 5%.<cite>2<\/cite><\/li>\n<\/ul>\n<\/li>\n<li><strong>Thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng quang \u0111i\u1ec7n m\u1ed9t c\u00e1ch chu \u0111\u00e1o<\/strong>\n<ul>\n<li><strong>Kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c m\u1ea3ng<\/strong>:Khi thi\u1ebft k\u1ebf nh\u00e0 m\u00e1y quang \u0111i\u1ec7n, \u0111i\u1ec1u c\u1ea7n thi\u1ebft l\u00e0 ph\u1ea3i thi\u1ebft l\u1eadp kho\u1ea3ng c\u00e1ch th\u00edch h\u1ee3p gi\u1eefa c\u00e1c m\u1ea3ng pin \u0111\u1ec3 tr\u00e1nh che b\u00f3ng l\u1eabn nhau.<cite>2<\/cite><cite>3<\/cite><\/li>\n<li><strong>Chi\u1ec1u cao h\u1ed7 tr\u1ee3<\/strong>: Thi\u1ebft k\u1ebf chi\u1ec1u cao khung \u0111\u1ee1 h\u1ee3p l\u00fd, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u1edf nh\u1eefng khu v\u1ef1c c\u00f3 th\u1ea3m th\u1ef1c v\u1eadt. C\u1ea7n b\u1ea3o d\u01b0\u1ee1ng th\u01b0\u1eddng xuy\u00ean \u0111\u1ec3 tr\u00e1nh c\u00e2y c\u1ed1i m\u1ecdc um t\u00f9m g\u00e2y che b\u00f3ng.<cite>3<\/cite><\/li>\n<li><strong>M\u00f4i tr\u01b0\u1eddng xung quanh<\/strong>:Trong qu\u00e1 tr\u00ecnh thi\u1ebft k\u1ebf v\u00e0 x\u00e2y d\u1ef1ng nh\u00e0 m\u00e1y quang \u0111i\u1ec7n, h\u00e3y c\u00e2n nh\u1eafc \u0111\u1ebfn m\u00f4i tr\u01b0\u1eddng xung quanh \u0111\u1ec3 tr\u00e1nh t\u00f2a nh\u00e0 che khu\u1ea5t c\u00e1c t\u1ea5m pin m\u1eb7t tr\u1eddi.<cite>2<\/cite><\/li>\n<\/ul>\n<\/li>\n<li><strong>Qu\u1ea3n l\u00fd v\u1eadn h\u00e0nh v\u00e0 b\u1ea3o tr\u00ec<\/strong>\n<ul>\n<li><strong>V\u1ec7 sinh th\u01b0\u1eddng xuy\u00ean<\/strong>: V\u1ec7 sinh b\u1ec1 m\u1eb7t c\u1ee7a c\u00e1c m\u00f4-\u0111un quang \u0111i\u1ec7n th\u01b0\u1eddng xuy\u00ean \u0111\u1ec3 lo\u1ea1i b\u1ecf b\u1ee5i v\u00e0 ch\u1ea5t th\u1ea3i, gi\u1ea3m thi\u1ec3u hi\u1ec7n t\u01b0\u1ee3ng \u0111i\u1ec3m n\u00f3ng.<cite>2<\/cite><cite>3<\/cite><\/li>\n<li><strong>Ph\u00e1t hi\u1ec7n l\u1ed7i<\/strong>: S\u1eed d\u1ee5ng c\u1ea3m bi\u1ebfn h\u1ed3ng ngo\u1ea1i v\u00e0 \u0111o \u0111i\u1ec7n \u0111\u1ec3 th\u01b0\u1eddng xuy\u00ean ki\u1ec3m tra tr\u1ea1ng th\u00e1i ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00e1c m\u00f4-\u0111un quang \u0111i\u1ec7n, k\u1ecbp th\u1eddi x\u00e1c \u0111\u1ecbnh v\u00e0 x\u1eed l\u00fd c\u00e1c s\u1ef1 c\u1ed1 \u0111i\u1ec3m n\u00f3ng. C\u1ea3m bi\u1ebfn h\u1ed3ng ngo\u1ea1i c\u00f3 th\u1ec3 quan s\u00e1t ch\u00ednh x\u00e1c c\u00e1c \u0111i\u1ec3m n\u00f3ng v\u00e0 h\u1ed7 tr\u1ee3 t\u1ea1o b\u00e1o c\u00e1o t\u1ef1 \u0111\u1ed9ng, h\u1ed7 tr\u1ee3 nh\u00e2n vi\u00ean b\u1ea3o tr\u00ec ra quy\u1ebft \u0111\u1ecbnh.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<figure id=\"attachment_258\" aria-describedby=\"caption-attachment-258\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/todos-china.com\/vi\/may-ve-sinh-tam-pin-mat-troi\/\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-258 size-full\" src=\"https:\/\/todos-china.com\/wp-content\/uploads\/2024\/07\/product2.webp\" alt=\"Robot v\u1ec7 sinh n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi ho\u00e0n to\u00e0n t\u1ef1 \u0111\u1ed9ng\" width=\"600\" height=\"600\" srcset=\"https:\/\/todos-china.com\/wp-content\/uploads\/2024\/07\/product2.webp 600w, https:\/\/todos-china.com\/wp-content\/uploads\/2024\/07\/product2-300x300.webp 300w, https:\/\/todos-china.com\/wp-content\/uploads\/2024\/07\/product2-150x150.webp 150w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/a><figcaption id=\"caption-attachment-258\" class=\"wp-caption-text\">https:\/\/todos-china.com\/solar-panel-cleaning-machine\/<\/figcaption><\/figure>\n<ul>\n<li><strong>Chi\u1ebfn l\u01b0\u1ee3c ph\u00f2ng ng\u1eeba s\u00e1ng t\u1ea1o<\/strong>\n<ul>\n<li><strong>\u0110i\u1ec7n tr\u1edf n\u1ed1i ti\u1ebfp<\/strong>: Vi\u1ec7c l\u1eafp \u0111\u1eb7t \u0111i\u1ec7n tr\u1edf trong chu\u1ed7i cell pin c\u00f3 th\u1ec3 chia s\u1ebb \u0111i\u1ec7n \u00e1p ng\u01b0\u1ee3c m\u00e0 c\u00e1c cell \u0111i\u1ec3m n\u00f3ng g\u1eb7p ph\u1ea3i, gi\u00fap gi\u1ea3m c\u1ea3 t\u1ed5n th\u1ea5t c\u00f4ng su\u1ea5t v\u00e0 nhi\u1ec7t \u0111\u1ed9. M\u1ea1ch ph\u00f2ng ng\u1eeba \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf bao g\u1ed3m b\u1ed9 so s\u00e1nh \u0111i\u1ec7n \u00e1p, MOSFET c\u00f4ng su\u1ea5t, diode v\u00e0 \u0111i\u1ec7n tr\u1edf chia \u0111i\u1ec7n \u00e1p \u0111\u1ec3 ki\u1ec3m so\u00e1t hi\u1ec7u qu\u1ea3 c\u00e1c hi\u1ec7u \u1ee9ng \u0111i\u1ec3m n\u00f3ng.<cite>7<\/cite><\/li>\n<li><strong>T\u1ed1i \u01b0u h\u00f3a c\u1ea5u tr\u00fac m\u1ea3ng quang \u0111i\u1ec7n<\/strong>:B\u1eb1ng c\u00e1ch t\u1ed1i \u01b0u h\u00f3a c\u1ea5u tr\u00fac c\u1ee7a c\u00e1c m\u1ea3ng quang \u0111i\u1ec7n, ch\u1eb3ng h\u1ea1n nh\u01b0 k\u1ebft n\u1ed1i c\u00e1c m\u00f4-\u0111un n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi t\u01b0\u01a1ng th\u00edch theo chu\u1ed7i ho\u1eb7c t\u00e1i c\u1ea5u tr\u00fac b\u1ed1 c\u1ee5c m\u1ea3ng th\u00f4ng qua m\u1ea1ch chuy\u1ec3n m\u1ea1ch, c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u hi\u1ec7u \u1ee9ng \u0111i\u1ec3m n\u00f3ng do che b\u00f3ng.<cite>4<\/cite><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>Ph\u1ea7n k\u1ebft lu\u1eadn<\/h2>\n<p>\u0110\u1ec3 ng\u0103n ng\u1eeba v\u00e0 ki\u1ec3m so\u00e1t hi\u1ec7u qu\u1ea3 hi\u1ec7u \u1ee9ng \u0111i\u1ec3m n\u00f3ng, c\u1ea7n c\u00f3 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p ti\u1ebfp c\u1eadn \u0111a chi\u1ec1u. C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t n\u00ean qu\u1ea3n l\u00fd ch\u1eb7t ch\u1ebd quy tr\u00ecnh s\u1ea3n xu\u1ea5t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o cell v\u00e0 module ch\u1ea5t l\u01b0\u1ee3ng cao; ng\u01b0\u1eddi d\u00f9ng n\u00ean l\u1ef1a ch\u1ecdn nh\u00e0 s\u1ea3n xu\u1ea5t cell \u0111\u00e1ng tin c\u1eady trong qu\u00e1 tr\u00ecnh mua s\u1eafm; thi\u1ebft l\u1eadp b\u1ed1 tr\u00ed h\u1ee3p l\u00fd trong thi\u1ebft k\u1ebf nh\u00e0 m\u00e1y \u0111\u1ec3 tr\u00e1nh che b\u00f3ng; v\u00e0 th\u01b0\u1eddng xuy\u00ean v\u1ec7 sinh v\u00e0 gi\u00e1m s\u00e1t trong qu\u00e1 tr\u00ecnh b\u1ea3o tr\u00ec \u0111\u1ec3 k\u1ecbp th\u1eddi x\u1eed l\u00fd s\u1ef1 c\u1ed1.<\/p>\n<p>C\u00e1c chi\u1ebfn l\u01b0\u1ee3c c\u1ea3i ti\u1ebfn, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111i\u1ec7n tr\u1edf n\u1ed1i ti\u1ebfp v\u00e0 c\u1ea5u tr\u00fac m\u1ea3ng quang \u0111i\u1ec7n \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a, m\u1eb7c d\u00f9 t\u1ed1n k\u00e9m h\u01a1n, nh\u01b0ng c\u00f3 th\u1ec3 ki\u1ec3m so\u00e1t hi\u1ec7u \u1ee9ng \u0111i\u1ec3m n\u00f3ng hi\u1ec7u qu\u1ea3 h\u01a1n, n\u00e2ng cao hi\u1ec7u su\u1ea5t ph\u00e1t \u0111i\u1ec7n v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a h\u1ec7 th\u1ed1ng quang \u0111i\u1ec7n.<\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Managing the Hot Spot Effect in Photovoltaic Modules The hot spot effect in photovoltaic modules is a common issue caused by several factors, and there are corresponding preventive measures that can be taken: Causes of the Hot Spot Effect Shading: When part of the photovoltaic module&#8217;s cells is shaded (by leaves, dust, bird droppings, etc.), [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2978,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/todos-china.com\/vi\/wp-json\/wp\/v2\/posts\/3187"}],"collection":[{"href":"https:\/\/todos-china.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/todos-china.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/todos-china.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/todos-china.com\/vi\/wp-json\/wp\/v2\/comments?post=3187"}],"version-history":[{"count":0,"href":"https:\/\/todos-china.com\/vi\/wp-json\/wp\/v2\/posts\/3187\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/todos-china.com\/vi\/wp-json\/wp\/v2\/media\/2978"}],"wp:attachment":[{"href":"https:\/\/todos-china.com\/vi\/wp-json\/wp\/v2\/media?parent=3187"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/todos-china.com\/vi\/wp-json\/wp\/v2\/categories?post=3187"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/todos-china.com\/vi\/wp-json\/wp\/v2\/tags?post=3187"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}