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<\/h1>\n<\/h1>\nD\u00e2y c\u00e1p DC v\u00e0 d\u00e2y c\u00e1p AC<\/strong> l\u00e0 hai lo\u1ea1i d\u00e2y d\u1eabn c\u00f3 vai tr\u00f2 kh\u00e1c nhau trong h\u1ec7 th\u1ed1ng \u0111i\u1ec7n n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi. N\u1ebfu ch\u1ecdn sai d\u00e2y, h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 gi\u1ea3m \u0111\u1ed9 b\u1ec1n, m\u1ea5t an to\u00e0n v\u00e0 t\u0103ng nguy c\u01a1 r\u00f2 \u0111i\u1ec7n, ph\u00f3ng h\u1ed3 quang ho\u1eb7c ch\u00e1y DC.<\/p>\n Trong h\u1ec7 solar, b\u1ea1n kh\u00f4ng n\u00ean d\u00f9ng d\u00e2y AC d\u00e2n d\u1ee5ng \u0111\u1ec3 thay cho d\u00e2y DC \u1edf chu\u1ed7i PV. M\u1ed7i lo\u1ea1i d\u00e2y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho m\u1ed9t d\u1ea1ng d\u00f2ng \u0111i\u1ec7n, m\u1ee9c \u0111i\u1ec7n \u00e1p v\u00e0 m\u00f4i tr\u01b0\u1eddng s\u1eed d\u1ee5ng kh\u00e1c nhau.<\/p>\n D\u00e2y c\u00e1p DC<\/strong> l\u00e0 d\u00e2y d\u00f9ng cho d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u, t\u00ean ti\u1ebfng Anh l\u00e0 Direct Current<\/strong>.<\/p>\n Trong h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi, d\u00e2y DC th\u01b0\u1eddng d\u00f9ng \u1edf c\u00e1c v\u1ecb tr\u00ed:<\/p>\n D\u00e2y DC th\u01b0\u1eddng \u0111i ngo\u00e0i tr\u1eddi, n\u1eb1m tr\u00ean m\u00e1i nh\u00e0 ho\u1eb7c khu v\u1ef1c c\u00f3 n\u1eafng n\u00f3ng l\u00e2u d\u00e0i. V\u00ec v\u1eady, d\u00e2y c\u1ea7n ch\u1ecbu nhi\u1ec7t, ch\u1ecbu tia UV v\u00e0 c\u00f3 l\u1edbp c\u00e1ch \u0111i\u1ec7n t\u1ed1t.<\/p>\n D\u00e2y c\u00e1p DC cho \u0111i\u1ec7n m\u1eb7t tr\u1eddi th\u01b0\u1eddng c\u00f3 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m sau:<\/p>\n C\u00e1c lo\u1ea1i d\u00e2y DC th\u01b0\u1eddng d\u00f9ng:<\/p>\n D\u00e2y c\u00e1p AC<\/strong> l\u00e0 d\u00e2y d\u00f9ng cho d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u, t\u00ean ti\u1ebfng Anh l\u00e0 Alternating Current<\/strong>.<\/p>\n Trong h\u1ec7 \u0111i\u1ec7n m\u1eb7t tr\u1eddi, d\u00e2y AC th\u01b0\u1eddng d\u00f9ng \u1edf ph\u1ea7n sau inverter, t\u1ee9c l\u00e0 ph\u1ea7n \u0111i\u1ec7n xoay chi\u1ec1u c\u1ea5p cho t\u1ea3i s\u1eed d\u1ee5ng.<\/p>\n D\u00e2y AC th\u01b0\u1eddng d\u00f9ng cho:<\/p>\n D\u00e2y AC ph\u00f9 h\u1ee3p v\u1edbi \u0111i\u1ec7n d\u00e2n d\u1ee5ng trong nh\u00e0, d\u1ec5 thi c\u00f4ng v\u00e0 th\u01b0\u1eddng c\u00f3 gi\u00e1 th\u1ea5p h\u01a1n d\u00e2y DC chuy\u00ean d\u1ee5ng.<\/p>\n Kh\u00f4ng n\u00ean. Trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p l\u00e0 kh\u00f4ng \u0111\u01b0\u1ee3c.<\/strong><\/p>\n D\u00e2y AC d\u00e2n d\u1ee5ng kh\u00f4ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 thay cho d\u00e2y DC trong chu\u1ed7i PV. L\u00fd do ch\u00ednh n\u1eb1m \u1edf \u0111\u1eb7c t\u00ednh d\u00f2ng \u0111i\u1ec7n, \u0111i\u1ec7n \u00e1p l\u00e0m vi\u1ec7c v\u00e0 m\u00f4i tr\u01b0\u1eddng l\u1eafp \u0111\u1eb7t.<\/p>\n Nguy hi\u1ec3m d\u1ec5 x\u1ea3y ra khi b\u1ea1n d\u00f9ng d\u00e2y AC cho c\u00e1c v\u1ecb tr\u00ed sau:<\/p>\n C\u00e1c r\u1ee7i ro c\u00f3 th\u1ec3 g\u1eb7p:<\/p>\n Trong h\u1ec7 \u0111i\u1ec7n m\u1eb7t tr\u1eddi hybrid, b\u1ea1n n\u00ean ph\u00e2n bi\u1ec7t r\u00f5 \u0111\u01b0\u1eddng DC v\u00e0 \u0111\u01b0\u1eddng AC.<\/p>\n \u0110\u01b0\u1eddng DC d\u00f9ng d\u00e2y DC:<\/strong><\/p>\n \u0110\u01b0\u1eddng AC d\u00f9ng d\u00e2y AC:<\/strong><\/p>\n C\u00e1ch ch\u1ecdn \u0111\u00fang d\u00e2y gi\u00fap h\u1ec7 th\u1ed1ng v\u1eadn h\u00e0nh \u1ed5n \u0111\u1ecbnh, an to\u00e0n v\u00e0 b\u1ec1n h\u01a1n.<\/p>\n B\u1ea1n c\u00f3 th\u1ec3 nh\u1edb theo nguy\u00ean t\u1eafc sau:<\/p>\n
\n1. D\u00e2y c\u00e1p DC l\u00e0 g\u00ec?<\/h2>\n
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\n2. \u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a d\u00e2y c\u00e1p DC trong h\u1ec7 solar<\/h2>\n
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\n3. D\u00e2y c\u00e1p AC l\u00e0 g\u00ec?<\/h2>\n
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\n4. C\u00f3 d\u00f9ng d\u00e2y AC thay d\u00e2y DC \u0111\u01b0\u1ee3c kh\u00f4ng?<\/h2>\n
V\u00ec sao kh\u00f4ng n\u00ean d\u00f9ng d\u00e2y AC thay d\u00e2y DC?<\/h3>\n
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\n \nL\u00fd do<\/th>\n Gi\u1ea3i th\u00edch<\/th>\n<\/tr>\n<\/thead>\n \n \u0110i\u1ec7n DC d\u1ec5 g\u00e2y h\u1ed3 quang nguy hi\u1ec3m<\/td>\n H\u1ed3 quang DC kh\u00f3 d\u1eadp h\u01a1n, sinh nhi\u1ec7t cao h\u01a1n v\u00e0 d\u1ec5 g\u00e2y ch\u00e1y h\u01a1n<\/td>\n<\/tr>\n \n Chu\u1ed7i PV c\u00f3 \u0111i\u1ec7n \u00e1p DC cao<\/td>\n H\u1ec7 PV c\u00f3 th\u1ec3 \u0111\u1ea1t 300Vdc, 500Vdc, 600Vdc ho\u1eb7c cao h\u01a1n<\/td>\n<\/tr>\n \n D\u00e2y AC d\u00e2n d\u1ee5ng d\u1ec5 xu\u1ed1ng c\u1ea5p ngo\u00e0i tr\u1eddi<\/td>\n D\u00e2y AC th\u00f4ng th\u01b0\u1eddng ch\u1ecbu UV k\u00e9m, d\u1ec5 n\u1ee9t v\u1ecf v\u00e0 l\u00e3o h\u00f3a nhanh<\/td>\n<\/tr>\n \n L\u1edbp c\u00e1ch \u0111i\u1ec7n kh\u00f4ng ph\u00f9 h\u1ee3p<\/td>\n D\u00e2y DC c\u00f3 l\u1edbp c\u00e1ch \u0111i\u1ec7n chuy\u00ean d\u1ee5ng cho m\u00f4i tr\u01b0\u1eddng solar<\/td>\n<\/tr>\n \n Nguy c\u01a1 m\u1ea5t an to\u00e0n l\u00e2u d\u00e0i<\/td>\n D\u1ec5 g\u00e2y r\u00f2 \u0111i\u1ec7n, ph\u00f3ng h\u1ed3 quang v\u00e0 ch\u00e1y DC<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
\n5. Khi n\u00e0o d\u1ec5 x\u1ea3y ra nguy hi\u1ec3m?<\/h2>\n
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\n6. So s\u00e1nh d\u00e2y c\u00e1p DC v\u00e0 d\u00e2y c\u00e1p AC<\/h2>\n
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\n \nTi\u00eau ch\u00ed<\/th>\n D\u00e2y DC trong h\u1ec7 solar<\/th>\n D\u00e2y AC d\u00e2n d\u1ee5ng<\/th>\n<\/tr>\n<\/thead>\n \n Lo\u1ea1i \u0111i\u1ec7n<\/td>\n DC, \u0111i\u1ec7n m\u1ed9t chi\u1ec1u<\/td>\n AC, \u0111i\u1ec7n xoay chi\u1ec1u<\/td>\n<\/tr>\n \n V\u1ecb tr\u00ed d\u00f9ng<\/td>\n Chu\u1ed7i PV, Battery, DC Combiner<\/td>\n \u0110i\u1ec7n l\u01b0\u1edbi, t\u1ea3i AC trong nh\u00e0<\/td>\n<\/tr>\n \n \u0110i\u1ec7n \u00e1p l\u00e0m vi\u1ec7c<\/td>\n Cao, th\u01b0\u1eddng t\u1eeb 300Vdc \u0111\u1ebfn 1500Vdc<\/td>\n Th\u01b0\u1eddng \u2264 450\/750Vac<\/td>\n<\/tr>\n \n Kh\u1ea3 n\u0103ng ch\u1ecbu UV<\/td>\n R\u1ea5t t\u1ed1t<\/td>\n Trung b\u00ecnh ho\u1eb7c k\u00e9m<\/td>\n<\/tr>\n \n Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t<\/td>\n T\u1ed1t<\/td>\n Ph\u1ee5 thu\u1ed9c lo\u1ea1i d\u00e2y<\/td>\n<\/tr>\n \n Ch\u1ed1ng ch\u00e1y<\/td>\n T\u1ed1t h\u01a1n<\/td>\n B\u00ecnh th\u01b0\u1eddng<\/td>\n<\/tr>\n \n L\u1edbp c\u00e1ch \u0111i\u1ec7n<\/td>\n D\u00e0y, chuy\u00ean d\u1ee5ng<\/td>\n Ti\u00eau chu\u1ea9n d\u00e2n d\u1ee5ng<\/td>\n<\/tr>\n \n Gi\u00e1 th\u00e0nh<\/td>\n Cao h\u01a1n<\/td>\n Th\u01b0\u1eddng r\u1ebb h\u01a1n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
\n7. \u1ee8ng d\u1ee5ng \u0111\u00fang trong h\u1ec7 hybrid<\/h2>\n
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\n8. Ghi nh\u1edb nhanh khi ch\u1ecdn d\u00e2y cho h\u1ec7 n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi<\/h2>\n