{"id":1461,"date":"2025-02-17T08:30:53","date_gmt":"2025-02-17T08:30:53","guid":{"rendered":"https:\/\/nbaem.com\/?p=1461"},"modified":"2025-09-18T04:49:03","modified_gmt":"2025-09-18T04:49:03","slug":"permanent-magnet-generator","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/permanent-magnet-generator\/","title":{"rendered":"C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a nam ch\u00e2m trong M\u00e1y ph\u00e1t \u0111i\u1ec7n"},"content":{"rendered":"<h2>Nguy\u00ean t\u1eafc c\u01a1 b\u1ea3n v\u1ec1 c\u00e1ch t\u1ea1o ra \u0111i\u1ec7n b\u1eb1ng nam ch\u00e2m, M\u00e1y ph\u00e1t \u0111i\u1ec7n l\u00e0 g\u00ec<\/h2>\n<p>\u1ede c\u1ed1t l\u00f5i, m\u1ed9t m\u00e1y ph\u00e1t \u0111i\u1ec7n l\u00e0 thi\u1ebft b\u1ecb chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc th\u00e0nh n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n. Qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i n\u00e0y d\u1ef1a nhi\u1ec1u v\u00e0o nam ch\u00e2m v\u00e0 s\u1ef1 t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c tr\u01b0\u1eddng t\u1eeb v\u00e0 d\u00e2y d\u1eabn. N\u00f3i \u0111\u01a1n gi\u1ea3n, khi m\u1ed9t d\u00e2y d\u1eabn nh\u01b0 cu\u1ed9n d\u00e2y di chuy\u1ec3n qua m\u1ed9t tr\u01b0\u1eddng t\u1eeb, n\u00f3 t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n\u2014m\u1ed9t qu\u00e1 tr\u00ecnh thi\u1ebft y\u1ebfu \u0111\u1ec3 t\u1ea1o ra \u0111i\u1ec7n n\u0103ng.<\/p>\n<p>M\u00e1y ph\u00e1t \u0111i\u1ec7n c\u00f3 m\u1eb7t \u1edf kh\u1eafp n\u01a1i\u2014t\u1eeb nh\u00e0 m\u00e1y \u0111i\u1ec7n \u0111\u1ebfn c\u00e1c thi\u1ebft b\u1ecb d\u1ef1 ph\u00f2ng nh\u1ecf cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng cho nh\u00e0 \u1edf. D\u00f9 \u0111a d\u1ea1ng, t\u1ea5t c\u1ea3 c\u00e1c m\u00e1y ph\u00e1t \u0111i\u1ec7n ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean m\u1ed9t nguy\u00ean l\u00fd c\u01a1 b\u1ea3n: c\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 nam ch\u00e2m v\u00e0 cu\u1ed9n d\u00e2y l\u00e0m vi\u1ec7c c\u00f9ng nhau \u0111\u1ec3 t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n m\u00e0 kh\u00f4ng ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp, l\u00e0m cho qu\u00e1 tr\u00ecnh n\u00e0y hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u00e1ng tin c\u1eady.<\/p>\n<p>Hi\u1ec3u r\u00f5 m\u00e1y ph\u00e1t \u0111i\u1ec7n l\u00e0 g\u00ec v\u00e0 c\u00e1ch n\u00f3 ho\u1ea1t \u0111\u1ed9ng gi\u00fap l\u00e0m r\u00f5 vai tr\u00f2 quan tr\u1ecdng c\u1ee7a nam ch\u00e2m trong vi\u1ec7c t\u1ea1o ra \u0111i\u1ec7n n\u0103ng. Trong c\u00e1c thu\u1eadt ng\u1eef h\u00e0ng ng\u00e0y, h\u00e3y ngh\u0129 \u0111\u1ebfn vi\u1ec7c quay tay ho\u1eb7c quay turbine. Chuy\u1ec3n \u0111\u1ed9ng \u0111\u00f3 l\u00e0m di chuy\u1ec3n nam ch\u00e2m ho\u1eb7c cu\u1ed9n d\u00e2y \u0111\u1ec3 t\u1ea1o ra \u0111i\u1ec7n. \u00dd t\u01b0\u1edfng \u0111\u01a1n gi\u1ea3n nh\u01b0ng m\u1ea1nh m\u1ebd n\u00e0y l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec7n hi\u1ec7n \u0111\u1ea1i, cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng cho m\u1ecdi th\u1ee9 t\u1eeb thi\u1ebft b\u1ecb gia d\u1ee5ng \u0111\u1ebfn m\u00e1y m\u00f3c c\u00f4ng nghi\u1ec7p.<\/p>\n<h2>Nguy\u00ean t\u1eafc c\u01a1 b\u1ea3n v\u1ec1 c\u00e1ch t\u1ea1o ra \u0111i\u1ec7n b\u1eb1ng nam ch\u00e2m, ki\u1ebfn th\u1ee9c n\u1ec1n t\u1ea3ng v\u1ec1 t\u1eeb tr\u01b0\u1eddng v\u00e0 \u0111i\u1ec7n t\u1eeb<\/h2>\n<p><img decoding=\"async\" class=\"\" src=\"https:\/\/pub-36eea33d6f1540d281c285671ffb8664.r2.dev\/2025\/09\/18\/Electricity_Generation_Using_Magnets_DaBOAxjIA.webp\" alt=\"S\u1ea3n xu\u1ea5t \u0111i\u1ec7n b\u1eb1ng Nam ch\u00e2m\" width=\"651\" height=\"488\" \/><\/p>\n<p>\u0110\u1ec3 hi\u1ec3u c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u1ed9t m\u00e1y ph\u00e1t \u0111i\u1ec7n, b\u1ea1n c\u1ea7n bi\u1ebft m\u1ed9t ch\u00fat v\u1ec1 t\u1eeb t\u00ednh v\u00e0 \u0111i\u1ec7n t\u1eeb. Nam ch\u00e2m t\u1ea1o ra c\u00e1c tr\u01b0\u1eddng t\u1eeb, nh\u1eefng l\u1ef1c v\u00f4 h\u00ecnh c\u00f3 th\u1ec3 \u0111\u1ea9y ho\u1eb7c k\u00e9o c\u00e1c kim lo\u1ea1i nh\u01b0 s\u1eaft. Trong m\u1ed9t m\u00e1y ph\u00e1t \u0111i\u1ec7n, c\u00e1c tr\u01b0\u1eddng t\u1eeb n\u00e0y t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c cu\u1ed9n d\u00e2y \u0111\u1ec3 t\u1ea1o ra \u0111i\u1ec7n.<\/p>\n<p>\u0110i\u1ec7n t\u1eeb li\u00ean k\u1ebft gi\u1eefa \u0111i\u1ec7n v\u00e0 t\u1eeb. Khi d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua m\u1ed9t d\u00e2y d\u1eabn, n\u00f3 t\u1ea1o ra m\u1ed9t tr\u01b0\u1eddng t\u1eeb xung quanh d\u00e2y \u0111\u00f3. T\u01b0\u01a1ng t\u1ef1, di chuy\u1ec3n d\u00e2y d\u1eabn qua m\u1ed9t tr\u01b0\u1eddng t\u1eeb\u2014ho\u1eb7c thay \u0111\u1ed5i tr\u01b0\u1eddng t\u1eeb g\u1ea7n d\u00e2y d\u1eabn\u2014g\u00e2y ra d\u00f2ng \u0111i\u1ec7n ch\u1ea1y trong d\u00e2y \u0111\u00f3. \u0110\u00e2y l\u00e0 \u00fd t\u01b0\u1edfng c\u01a1 b\u1ea3n c\u1ee7a c\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb trong m\u00e1y ph\u00e1t \u0111i\u1ec7n.<\/p>\n<h2>C\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb, \u00fd t\u01b0\u1edfng c\u1ed1t l\u00f5i<\/h2>\n<p><img decoding=\"async\" class=\"\" src=\"https:\/\/pub-36eea33d6f1540d281c285671ffb8664.r2.dev\/2025\/09\/18\/Electromagnetic_Induction_Basics_GWo1zqiyf.webp\" alt=\"Nguy\u00ean l\u00fd c\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb c\u01a1 b\u1ea3n\" width=\"651\" height=\"306\" \/><\/p>\n<p>C\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb l\u00e0 \u00fd t\u01b0\u1edfng ch\u00ednh \u0111\u1eb1ng sau c\u00e1ch nam ch\u00e2m ho\u1ea1t \u0111\u1ed9ng trong m\u00e1y ph\u00e1t \u0111i\u1ec7n. Khi m\u1ed9t nam ch\u00e2m di chuy\u1ec3n g\u1ea7n m\u1ed9t cu\u1ed9n d\u00e2y, n\u00f3 t\u1ea1o ra m\u1ed9t tr\u01b0\u1eddng t\u1eeb bi\u1ebfn \u0111\u1ed5i. S\u1ef1 thay \u0111\u1ed5i n\u00e0y trong tr\u01b0\u1eddng t\u1eeb g\u00e2y ra d\u00f2ng \u0111i\u1ec7n ch\u1ea1y trong d\u00e2y. Qu\u00e1 tr\u00ecnh n\u00e0y g\u1ecdi l\u00e0 c\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb.<\/p>\n<p>\u0110\u00e2y l\u00e0 l\u00fd do t\u1ea1i sao \u0111i\u1ec1u \u0111\u00f3 quan tr\u1ecdng: khi nam ch\u00e2m quay ho\u1eb7c di chuy\u1ec3n b\u00ean trong m\u00e1y ph\u00e1t \u0111i\u1ec7n, n\u00f3 li\u00ean t\u1ee5c thay \u0111\u1ed5i flux t\u1eeb qua cu\u1ed9n d\u00e2y. S\u1ef1 thay \u0111\u1ed5i flux t\u1eeb n\u00e0y t\u1ea1o ra \u0111i\u1ec7n. N\u1ebfu kh\u00f4ng c\u00f3 s\u1ef1 t\u01b0\u01a1ng t\u00e1c n\u00e0y gi\u1eefa nam ch\u00e2m v\u00e0 cu\u1ed9n d\u00e2y, s\u1ebd kh\u00f4ng c\u00f3 n\u0103ng l\u01b0\u1ee3ng n\u00e0o \u0111\u01b0\u1ee3c t\u1ea1o ra.<\/p>\n<p>Nguy\u00ean l\u00fd n\u00e0y ho\u1ea1t \u0111\u1ed9ng trong t\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i m\u00e1y ph\u00e1t \u0111i\u1ec7n, d\u00f9 ch\u00fang s\u1eed d\u1ee5ng nam ch\u00e2m v\u0129nh c\u1eedu hay electromagnet. Ch\u00eca kh\u00f3a l\u00e0 c\u00f3 m\u1ed9t tr\u01b0\u1eddng t\u1eeb thay \u0111\u1ed5i t\u01b0\u01a1ng \u0111\u1ed1i v\u1edbi cu\u1ed9n d\u00e2y \u0111\u1ec3 c\u1ea3m \u1ee9ng d\u00f2ng \u0111i\u1ec7n li\u00ean t\u1ee5c. V\u00ec v\u1eady, hi\u1ec3u c\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 n\u1eafm b\u1eaft c\u00e1ch m\u00e1y ph\u00e1t \u0111i\u1ec7n t\u1ea1o ra \u0111i\u1ec7n b\u1eb1ng nam ch\u00e2m.<\/p>\n<h2>Vai tr\u00f2 c\u1ee7a nam ch\u00e2m trong c\u00e1c lo\u1ea1i m\u00e1y ph\u00e1t \u0111i\u1ec7n kh\u00e1c nhau, M\u00e1y ph\u00e1t \u0111i\u1ec7n t\u1eeb v\u0129nh c\u1eedu (PMGs)<\/h2>\n<p>M\u00e1y ph\u00e1t \u0111i\u1ec7n nam ch\u00e2m v\u0129nh c\u1eedu (PMGs) s\u1eed d\u1ee5ng nam ch\u00e2m gi\u1eef tr\u01b0\u1eddng t\u1eeb c\u1ee7a ch\u00fang m\u00e0 kh\u00f4ng c\u1ea7n ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng b\u1ed5 sung. Nh\u1eefng nam ch\u00e2m n\u00e0y th\u01b0\u1eddng l\u00e0m t\u1eeb c\u00e1c v\u1eadt li\u1ec7u m\u1ea1nh nh\u01b0 neodymium, cung c\u1ea5p flux t\u1eeb \u1ed5n \u0111\u1ecbnh. Trong m\u1ed9t PMG, nam ch\u00e2m quay quanh m\u1ed9t cu\u1ed9n d\u00e2y ho\u1eb7c cu\u1ed9n d\u00e2y quay trong m\u1ed9t tr\u01b0\u1eddng t\u1eeb. Chuy\u1ec3n \u0111\u1ed9ng n\u00e0y g\u00e2y ra c\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb, t\u1eeb \u0111\u00f3 t\u1ea1o ra \u0111i\u1ec7n.<\/p>\n<h3>C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh c\u1ee7a PMGs v\u1edbi nam ch\u00e2m:<\/h3>\n<ul>\n<li><strong>Kh\u00f4ng c\u1ea7n ngu\u1ed3n \u0111i\u1ec7n b\u00ean ngo\u00e0i<\/strong>: Nam ch\u00e2m t\u1ea1o ra tr\u01b0\u1eddng t\u1eeb c\u1ee7a ch\u00ednh ch\u00fang.<\/li>\n<li><strong>Hi\u1ec7u qu\u1ea3 cao<\/strong>: Nam ch\u00e2m v\u0129nh c\u1eedu m\u1ea1nh m\u1ebd c\u1ea3i thi\u1ec7n c\u00f4ng su\u1ea5t.<\/li>\n<li><strong>Thi\u1ebft k\u1ebf nh\u1ecf g\u1ecdn<\/strong>: \u00cdt b\u1ed9 ph\u1eadn h\u01a1n, v\u00ec v\u1eady PMGs th\u01b0\u1eddng nh\u1eb9 h\u01a1n v\u00e0 nh\u1ecf h\u01a1n.<\/li>\n<li><strong>B\u1ea3o tr\u00ec th\u1ea5p<\/strong>: Kh\u00f4ng c\u00f3 ch\u1ed5i than ho\u1eb7c ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng ph\u1ee5 cho tr\u01b0\u1eddng t\u1eeb, gi\u1ea3m hao m\u00f2n v\u00e0 h\u1ecfng h\u00f3c.<\/li>\n<\/ul>\n<h3>C\u00e1c lo\u1ea1i nam ch\u00e2m th\u01b0\u1eddng d\u00f9ng trong PMGs:<\/h3>\n<div class=\"table-responsive\">\n<table class=\"table\">\n<thead>\n<tr>\n<th>Lo\u1ea1i nam ch\u00e2m<\/th>\n<th>M\u1ee9c \u0111\u1ed9 m\u1ea1nh<\/th>\n<th>S\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/th>\n<th>Gi\u00e1 th\u00e0nh<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Neodymium (NdFeB)<\/td>\n<td>R\u1ea5t cao<\/td>\n<td>Tuabin gi\u00f3, m\u00e1y ph\u00e1t di \u0111\u1ed9ng<\/td>\n<td>Cao h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td>S\u1eaft ferrit<\/td>\n<td>V\u1eeba ph\u1ea3i<\/td>\n<td>M\u00e1y ph\u00e1t nh\u1ecf<\/td>\n<td>Th\u1ea5p h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td>Alnico<\/td>\n<td>M\u1ee9c \u0111\u1ed9 Trung b\u00ecnh-Cao<\/td>\n<td>\u1ee8ng d\u1ee5ng chuy\u00ean d\u1ee5ng<\/td>\n<td>V\u1eeba ph\u1ea3i<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>Tr\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng m\u1ea1nh t\u1eeb nam ch\u00e2m v\u0129nh c\u1eedu \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn cu\u1ed9n d\u00e2y c\u1ee7a m\u00e1y ph\u00e1t, t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u00e1ng tin c\u1eady. PMG l\u00e0 l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn trong c\u00e1c h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o hi\u1ec7n \u0111\u1ea1i v\u00e0 c\u00e1c gi\u1ea3i ph\u00e1p ngu\u1ed3n \u0111i\u1ec7n di \u0111\u1ed9ng v\u00ec ch\u00fang k\u1ebft h\u1ee3p s\u1ef1 \u0111\u01a1n gi\u1ea3n v\u1edbi hi\u1ec7u su\u1ea5t cao.<\/p>\n<h2>Vai tr\u00f2 c\u1ee7a nam ch\u00e2m trong c\u00e1c lo\u1ea1i m\u00e1y ph\u00e1t \u0111i\u1ec7n kh\u00e1c nhau, M\u00e1y ph\u00e1t \u0111i\u1ec7n \u0111i\u1ec7n t\u1eeb<\/h2>\n<p>M\u00e1y ph\u00e1t \u0111i\u1ec7n \u0111i\u1ec7n t\u1eeb s\u1eed d\u1ee5ng nam ch\u00e2m kh\u00e1c v\u1edbi m\u00e1y ph\u00e1t nam ch\u00e2m v\u0129nh c\u1eedu. Thay v\u00ec s\u1eed d\u1ee5ng nam ch\u00e2m c\u1ed1 \u0111\u1ecbnh, c\u00e1c m\u00e1y ph\u00e1t n\u00e0y d\u1ef1a v\u00e0o\u00a0<strong>nam ch\u00e2m \u0111i\u1ec7n<\/strong>\u2014cu\u1ed9n d\u00e2y d\u1eabn \u0111i\u1ec7n \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t b\u1eb1ng d\u00f2ng \u0111i\u1ec7n \u0111\u1ec3 t\u1ea1o ra t\u1eeb tr\u01b0\u1eddng. C\u1ea5u h\u00ecnh n\u00e0y cung c\u1ea5p nhi\u1ec1u ki\u1ec3m so\u00e1t h\u01a1n v\u1ec1 c\u01b0\u1eddng \u0111\u1ed9 c\u1ee7a nam ch\u00e2m, c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i d\u00f2ng ch\u1ea3y qua c\u00e1c cu\u1ed9n d\u00e2y.<\/p>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a nam ch\u00e2m trong c\u00e1c m\u00e1y ph\u00e1t \u0111i\u1ec7n \u0111i\u1ec7n t\u1eeb:<\/p>\n<ul>\n<li><strong>T\u1ea1o tr\u01b0\u1eddng t\u1eeb<\/strong>: C\u00e1c \u0111i\u1ec7n t\u1eeb t\u1ea1o ra m\u1ed9t tr\u01b0\u1eddng t\u1eeb quanh rotor ho\u1eb7c stato.<\/li>\n<li><strong>Bi\u1ebfn \u0111\u1ed5i l\u01b0u l\u01b0\u1ee3ng t\u1eeb<\/strong>: Khi c\u00e1c b\u1ed9 ph\u1eadn quay, tr\u01b0\u1eddng t\u1eeb \u0111i\u1ec7n t\u1eeb t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c cu\u1ed9n d\u00e2y trong stato ho\u1eb7c rotor \u0111\u1ec3 t\u1ea1o ra l\u01b0u l\u01b0\u1ee3ng t\u1eeb thay \u0111\u1ed5i.<\/li>\n<li><strong>Sinh \u0111i\u1ec7n<\/strong>: L\u01b0u l\u01b0\u1ee3ng t\u1eeb thay \u0111\u1ed5i g\u00e2y c\u1ea3m \u1ee9ng d\u00f2ng \u0111i\u1ec7n trong c\u00e1c cu\u1ed9n d\u00e2y c\u1ee7a m\u00e1y ph\u00e1t, nh\u1edd v\u00e0o c\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb.<\/li>\n<\/ul>\n<p>H\u1ec7 th\u1ed1ng n\u00e0y cho ph\u00e9p:<\/p>\n<div class=\"table-responsive\">\n<table class=\"table\">\n<thead>\n<tr>\n<th>\u0110\u1eb7c \u0111i\u1ec3m<\/th>\n<th>M\u00f4 t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Tr\u01b0\u1eddng \u0111i\u1ec1u ch\u1ec9nh<\/td>\n<td>C\u01b0\u1eddng \u0111\u1ed9 t\u1eeb c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a \u0111\u1ea7u ra<\/td>\n<\/tr>\n<tr>\n<td>S\u1eed d\u1ee5ng quy m\u00f4 l\u1edbn h\u01a1n<\/td>\n<td>L\u00fd t\u01b0\u1edfng cho c\u00e1c nh\u00e0 m\u00e1y \u0111i\u1ec7n l\u1edbn v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng c\u00f4ng nghi\u1ec7p<\/td>\n<\/tr>\n<tr>\n<td>B\u1ea3o tr\u00ec<\/td>\n<td>Y\u00eau c\u1ea7u ngu\u1ed3n \u0111i\u1ec7n \u0111\u1ec3 duy tr\u00ec t\u1eeb t\u00ednh, ti\u00eau t\u1ed1n n\u0103ng l\u01b0\u1ee3ng nh\u1eb9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>C\u00e1c m\u00e1y ph\u00e1t \u0111i\u1ec7n \u0111i\u1ec7n t\u1eeb ph\u1ed5 bi\u1ebfn trong c\u00e1c nh\u00e0 m\u00e1y \u0111i\u1ec7n v\u00ec ch\u00fang c\u00f3 th\u1ec3 x\u1eed l\u00fd c\u00f4ng su\u1ea5t l\u1edbn v\u00e0 cung c\u1ea5p kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t linh ho\u1ea1t. Kh\u00e1c v\u1edbi nam ch\u00e2m v\u0129nh c\u1eedu, c\u00e1c c\u1ea5u h\u00ecnh \u0111i\u1ec7n t\u1eeb kh\u00f4ng d\u1ef1a v\u00e0o nam ch\u00e2m c\u1ed1 \u0111\u1ecbnh, l\u00e0m cho ch\u00fang linh ho\u1ea1t nh\u01b0ng ph\u1ee5 thu\u1ed9c v\u00e0o ngu\u1ed3n \u0111i\u1ec7n b\u00ean ngo\u00e0i \u0111\u1ec3 gi\u1eef nam ch\u00e2m lu\u00f4n \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t.<\/p>\n<p>S\u1ef1 linh ho\u1ea1t n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c nhu c\u1ea7u n\u0103ng l\u01b0\u1ee3ng thay \u0111\u1ed5i trong l\u01b0\u1edbi \u0111i\u1ec7n c\u1ee7a Vi\u1ec7t Nam, n\u01a1i \u0111\u1ed9 tin c\u1eady v\u00e0 ki\u1ec3m so\u00e1t l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 cung c\u1ea5p \u0111i\u1ec7n \u1ed5n \u0111\u1ecbnh.<\/p>\n<h2>Vai tr\u00f2 c\u1ee7a nam ch\u00e2m trong c\u00e1c lo\u1ea1i m\u00e1y ph\u00e1t \u0111i\u1ec7n kh\u00e1c nhau, H\u1ec7 th\u1ed1ng lai v\u00e0 thi\u1ebft k\u1ebf n\u00e2ng cao<\/h2>\n<p>&nbsp;<\/p>\n<p>M\u00e1y ph\u00e1t hybrid k\u1ebft h\u1ee3p c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a c\u1ea3 m\u00e1y ph\u00e1t t\u1eeb v\u0129nh c\u1eedu (PMG) v\u00e0 m\u00e1y ph\u00e1t \u0111i\u1ec7n c\u1ea3m \u1ee9ng \u0111\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 v\u00e0 linh ho\u1ea1t. Trong c\u00e1c thi\u1ebft k\u1ebf ti\u00ean ti\u1ebfn n\u00e0y, nam ch\u00e2m \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng b\u1eb1ng c\u00e1ch l\u00e0m vi\u1ec7c c\u00f9ng v\u1edbi nam ch\u00e2m \u0111i\u1ec7n \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a c\u00f4ng su\u1ea5t \u0111\u1ea7u ra.<\/p>\n<h3>C\u00e1ch h\u1ec7 th\u1ed1ng lai s\u1eed d\u1ee5ng nam ch\u00e2m<\/h3>\n<ul>\n<li><strong>Nam ch\u00e2m v\u0129nh c\u1eedu<\/strong>\u00a0cung c\u1ea5p m\u1ed9t tr\u01b0\u1eddng t\u1eeb c\u1ed1 \u0111\u1ecbnh m\u00e0 kh\u00f4ng c\u1ea7n ngu\u1ed3n \u0111i\u1ec7n b\u00ean ngo\u00e0i, gi\u00fap gi\u1ea3m t\u1ed5n th\u1ea5t n\u0103ng l\u01b0\u1ee3ng.<\/li>\n<li><strong>Nam ch\u00e2m \u0111i\u1ec7n<\/strong>\u00a0\u0111i\u1ec1u ch\u1ec9nh c\u01b0\u1eddng \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng m\u1ed9t c\u00e1ch linh ho\u1ea1t, cho ph\u00e9p ki\u1ec3m so\u00e1t t\u1ed1t h\u01a1n \u0111i\u1ec7n \u00e1p v\u00e0 d\u00f2ng \u0111i\u1ec7n \u0111\u1ea7u ra.<\/li>\n<li>S\u1ef1 k\u1ebft h\u1ee3p n\u00e0y gi\u00fap m\u00e1y ph\u00e1t qu\u1ea3n l\u00fd t\u1ea3i v\u00e0 t\u1ed1c \u0111\u1ed9 bi\u1ebfn \u0111\u1ed5i hi\u1ec7u qu\u1ea3 h\u01a1n so v\u1edbi c\u00e1c thi\u1ebft k\u1ebf truy\u1ec1n th\u1ed1ng.<\/li>\n<\/ul>\n<h3>\u01afu \u0111i\u1ec3m c\u1ee7a h\u1ec7 th\u1ed1ng nam ch\u00e2m lai<\/h3>\n<div class=\"table-responsive\">\n<table class=\"table\">\n<thead>\n<tr>\n<th>\u0110\u1eb7c \u0111i\u1ec3m<\/th>\n<th>L\u1ee3i \u00edch<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>L\u01b0u l\u01b0\u1ee3ng t\u1eeb \u1ed5n \u0111\u1ecbnh<\/td>\n<td>C\u00f4ng su\u1ea5t \u0111\u1ea7u ra nh\u1ea5t qu\u00e1n<\/td>\n<\/tr>\n<tr>\n<td>Tr\u01b0\u1eddng t\u1eeb c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh<\/td>\n<td>Ki\u1ec3m so\u00e1t v\u00e0 hi\u1ec7u qu\u1ea3 t\u1ed1t h\u01a1n d\u01b0\u1edbi t\u1ea3i<\/td>\n<\/tr>\n<tr>\n<td>Gi\u1ea3m ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng<\/td>\n<td>Chi ph\u00ed v\u1eadn h\u00e0nh th\u1ea5p h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 b\u1ec1n \u0111\u01b0\u1ee3c n\u00e2ng cao<\/td>\n<td>Tu\u1ed5i th\u1ecd m\u00e1y ph\u00e1t l\u00e2u h\u01a1n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>M\u00e1y ph\u00e1t hybrid ph\u1ed5 bi\u1ebfn trong c\u00e1c turbine gi\u00f3 v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o kh\u00e1c n\u01a1i \u0111i\u1ec1u ki\u1ec7n bi\u1ebfn \u0111\u1ed5i y\u00eau c\u1ea7u hi\u1ec7u su\u1ea5t nam ch\u00e2m th\u00edch \u1ee9ng.<\/p>\n<h2>T\u1ea1i sao v\u1eadt li\u1ec7u t\u1eeb ch\u1ea5t l\u01b0\u1ee3ng l\u1ea1i quan tr\u1ecdng, \u0110\u00f3ng g\u00f3p c\u1ee7a NBAEM, C\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u t\u1eeb \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u00e1y ph\u00e1t \u0111i\u1ec7n<\/h2>\n<p>Ch\u1ea5t l\u01b0\u1ee3ng v\u1eadt li\u1ec7u t\u1eeb \u0111\u00f3ng vai tr\u00f2 l\u1edbn trong vi\u1ec7c m\u00e1y ph\u00e1t ho\u1ea1t \u0111\u1ed9ng t\u1ed1t nh\u01b0 th\u1ebf n\u00e0o. NBAEM cung c\u1ea5p nhi\u1ec1u lo\u1ea1i v\u1eadt li\u1ec7u t\u1eeb ph\u00f9 h\u1ee3p \u0111\u1eb7c bi\u1ec7t cho m\u00e1y ph\u00e1t \u0111i\u1ec7n, gi\u00fap c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u1ed9 b\u1ec1n. M\u1ed9t s\u1ed1 lo\u1ea1i nam ch\u00e2m ph\u1ed5 bi\u1ebfn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u00e1y ph\u00e1t g\u1ed3m:<\/p>\n<ul>\n<li><strong>Nam ch\u00e2m Neodymium (NdFeB):<\/strong>\u00a0N\u1ed5i b\u1eadt v\u1edbi tr\u01b0\u1eddng t\u1eeb m\u1ea1nh v\u00e0 m\u1eadt \u0111\u1ed9 n\u0103ng l\u01b0\u1ee3ng cao, nam ch\u00e2m neodymium ph\u1ed5 bi\u1ebfn trong m\u00e1y ph\u00e1t t\u1eeb v\u0129nh c\u1eedu (PMG). Ch\u00fang cho ph\u00e9p m\u00e1y ph\u00e1t nh\u1ecf g\u1ecdn, nh\u1eb9 h\u01a1n m\u00e0 kh\u00f4ng gi\u1ea3m c\u00f4ng su\u1ea5t.<\/li>\n<li><strong>Nam ch\u00e2m S\u1eaft t\u1eeb:<\/strong>\u00a0Nam ch\u00e2m ferrite, c\u00f3 gi\u00e1 th\u00e0nh h\u1ee3p l\u00fd v\u00e0 ch\u1ed1ng \u0103n m\u00f2n, ph\u1ed5 bi\u1ebfn trong nhi\u1ec1u m\u00e1y ph\u00e1t nh\u01b0ng c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 t\u1eeb th\u1ea5p h\u01a1n so v\u1edbi neodymium.<\/li>\n<li><strong>Nam ch\u00e2m Samarium Cobalt:<\/strong>\u00a0L\u00fd t\u01b0\u1edfng cho m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao, c\u00e1c nam ch\u00e2m n\u00e0y gi\u1eef \u0111\u01b0\u1ee3c t\u00ednh ch\u1ea5t t\u1eeb ngay c\u1ea3 d\u01b0\u1edbi nhi\u1ec7t \u0111\u1ed9 cao, ph\u00f9 h\u1ee3p cho c\u00e1c m\u00e1y ph\u00e1t c\u00f4ng nghi\u1ec7p n\u1eb7ng.<\/li>\n<\/ul>\n<p>NBAEM chuy\u00ean cung c\u1ea5p c\u00e1c v\u1eadt li\u1ec7u t\u1eeb n\u00e0y v\u1edbi ch\u1ea5t l\u01b0\u1ee3ng \u1ed5n \u0111\u1ecbnh, ph\u1ee5c v\u1ee5 c\u00e1c nhu c\u1ea7u kh\u00e1c nhau c\u1ee7a m\u00e1y ph\u00e1t tr\u00ean th\u1ecb tr\u01b0\u1eddng Vi\u1ec7t Nam. V\u1eadt li\u1ec7u c\u1ee7a h\u1ecd \u0111\u1ea3m b\u1ea3o l\u01b0u l\u01b0\u1ee3ng t\u1eeb \u1ed5n \u0111\u1ecbnh, \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn s\u1ef1 t\u01b0\u01a1ng t\u00e1c gi\u1eefa cu\u1ed9n d\u00e2y v\u00e0 nam ch\u00e2m c\u1ee7a m\u00e1y ph\u00e1t, d\u1eabn \u0111\u1ebfn s\u1ea3n xu\u1ea5t \u0111i\u1ec7n n\u0103ng \u0111\u00e1ng tin c\u1eady. \u0110\u1ed1i v\u1edbi c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 ng\u01b0\u1eddi d\u00f9ng Vi\u1ec7t Nam, vi\u1ec7c s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u t\u1eeb c\u1ee7a NBAEM mang l\u1ea1i c\u00e1c l\u1ef1a ch\u1ecdn hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed v\u00e0 hi\u1ec7u su\u1ea5t cao ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng ph\u00e1t \u0111i\u1ec7n \u0111a d\u1ea1ng.<\/p>\n<h2>Hi\u1ec7u su\u1ea5t v\u1eadt li\u1ec7u v\u00e0 hi\u1ec7u qu\u1ea3 c\u1ee7a m\u00e1y ph\u00e1t \u0111i\u1ec7n<\/h2>\n<p>Ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a v\u1eadt li\u1ec7u t\u1eeb tr\u01b0\u1eddng \u0111\u00f3ng vai tr\u00f2 l\u1edbn trong hi\u1ec7u su\u1ea5t ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u00e1y ph\u00e1t \u0111i\u1ec7n. Nam ch\u00e2m m\u1ea1nh h\u01a1n v\u00e0 \u1ed5n \u0111\u1ecbnh h\u01a1n t\u1ea1o ra tr\u01b0\u1eddng t\u1eeb m\u1ea1nh h\u01a1n, \u0111i\u1ec1u n\u00e0y \u0111\u1ed3ng ngh\u0129a v\u1edbi c\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb t\u1ed1t h\u01a1n trong c\u00e1c m\u00e1y ph\u00e1t \u0111i\u1ec7n. \u0110i\u1ec1u n\u00e0y t\u0103ng c\u01b0\u1eddng c\u00f4ng su\u1ea5t v\u00e0 hi\u1ec7u qu\u1ea3 t\u1ed5ng th\u1ec3 c\u1ee7a thi\u1ebft b\u1ecb.<\/p>\n<p>NBAEM cung c\u1ea5p c\u00e1c v\u1eadt li\u1ec7u t\u1eeb tr\u01b0\u1eddng ch\u1ea5t l\u01b0\u1ee3ng cao n\u1ed5i ti\u1ebfng v\u1edbi m\u1eadt \u0111\u1ed9 t\u1eeb th\u00f4ng v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t xu\u1ea5t s\u1eafc. Nh\u1eefng \u0111\u1eb7c t\u00ednh n\u00e0y gi\u00fap c\u00e1c m\u00e1y ph\u00e1t duy tr\u00ec hi\u1ec7u su\u1ea5t ngay c\u1ea3 trong \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t, nh\u01b0 nhi\u1ec7t \u0111\u1ed9 cao ho\u1eb7c s\u1eed d\u1ee5ng li\u00ean t\u1ee5c. Vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c v\u1eadt li\u1ec7u nh\u01b0 nam ch\u00e2m neodymium t\u1eeb NBAEM c\u1ea3i thi\u1ec7n c\u01b0\u1eddng \u0111\u1ed9 tr\u01b0\u1eddng t\u1eeb, l\u00e0m cho c\u00e1c m\u00e1y ph\u00e1t t\u1eeb v\u0129nh c\u1eedu (PMGs) v\u00e0 m\u00e1y ph\u00e1t \u0111i\u1ec7n \u0111i\u1ec7n t\u1eeb tr\u1edf n\u00ean \u0111\u00e1ng tin c\u1eady v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n<p>V\u1eadt li\u1ec7u t\u1eeb tr\u01b0\u1eddng t\u1ed1t h\u01a1n c\u0169ng gi\u1ea3m thi\u1ec3u t\u1ed5n th\u1ea5t n\u0103ng l\u01b0\u1ee3ng b\u00ean trong m\u00e1y ph\u00e1t. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 \u00edt n\u0103ng l\u01b0\u1ee3ng b\u1ecb l\u00e3ng ph\u00ed h\u01a1n v\u00e0 nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng h\u01a1n \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ebfn nh\u00e0 ho\u1eb7c doanh nghi\u1ec7p c\u1ee7a b\u1ea1n. Trong th\u1ecb tr\u01b0\u1eddng m\u00e0 m\u1ed7i watt \u0111\u1ec1u quan tr\u1ecdng, c\u00e1c v\u1eadt li\u1ec7u c\u1ee7a NBAEM gi\u00fap t\u1ed1i \u01b0u h\u00f3a c\u00f4ng su\u1ea5t c\u1ee7a m\u00e1y ph\u00e1t, h\u1ed7 tr\u1ee3 s\u1ea3n xu\u1ea5t \u0111i\u1ec7n s\u1ea1ch h\u01a1n v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed h\u01a1n.<\/p>\n<h2>T\u1ea1i sao v\u1eadt li\u1ec7u t\u1eeb ch\u1ea5t l\u01b0\u1ee3ng l\u1ea1i quan tr\u1ecdng, \u0110\u00f3ng g\u00f3p c\u1ee7a NBAEM, Gi\u1ea3i ph\u00e1p t\u00f9y ch\u1ec9nh cho c\u00e1c \u1ee9ng d\u1ee5ng m\u00e1y ph\u00e1t \u0111i\u1ec7n kh\u00e1c nhau<\/h2>\n<p>M\u1ed7i \u1ee9ng d\u1ee5ng m\u00e1y ph\u00e1t \u0111\u1ec1u \u0111\u1ed9c \u0111\u00e1o, v\u00e0 vi\u1ec7c ch\u1ecdn v\u1eadt li\u1ec7u t\u1eeb tr\u01b0\u1eddng ph\u00f9 h\u1ee3p l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 t\u1ed1i \u0111a h\u00f3a hi\u1ec7u su\u1ea5t. NBAEM hi\u1ec3u r\u00f5 \u0111i\u1ec1u n\u00e0y, cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p t\u1eeb tr\u01b0\u1eddng t\u00f9y ch\u1ec9nh ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a c\u00e1c m\u00e1y ph\u00e1t trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau t\u1ea1i th\u1ecb tr\u01b0\u1eddng Vi\u1ec7t Nam.<\/p>\n<p>D\u00f9 l\u00e0 m\u00e1y ph\u00e1t t\u1eeb v\u0129nh c\u1eedu nh\u1ecf g\u1ecdn cho n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o hay m\u00e1y ph\u00e1t \u0111i\u1ec7n \u0111i\u1ec7n t\u1eeb l\u1edbn cho m\u1ee5c \u0111\u00edch c\u00f4ng nghi\u1ec7p, NBAEM cung c\u1ea5p nam ch\u00e2m c\u00f3 \u0111\u1eb7c t\u00ednh ph\u00f9 h\u1ee3p \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a flux t\u1eeb v\u00e0 \u0111\u1ed9 b\u1ec1n. Nh\u1eefng nam ch\u00e2m t\u00f9y ch\u1ec9nh n\u00e0y gi\u00fap c\u1ea3i thi\u1ec7n c\u00f4ng su\u1ea5t, hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u1ed9 tin c\u1eady, \u0111\u00e1p \u1ee9ng c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ch\u00ednh x\u00e1c nh\u01b0 k\u00edch th\u01b0\u1edbc, h\u00ecnh d\u1ea1ng, \u0111\u1ed9 c\u01b0\u1ee1ng t\u1eeb v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t.<\/p>\n<p>NBAEM l\u00e0m vi\u1ec7c ch\u1eb7t ch\u1ebd v\u1edbi kh\u00e1ch h\u00e0ng \u0111\u1ec3 l\u1ef1a ch\u1ecdn lo\u1ea1i nam ch\u00e2m ph\u00f9 h\u1ee3p nh\u1ea5t\u2014bao g\u1ed3m nam ch\u00e2m neodymium n\u1ed5i ti\u1ebfng v\u1edbi tr\u01b0\u1eddng t\u1eeb m\u1ea1nh ho\u1eb7c nam ch\u00e2m li\u00ean k\u1ebft \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c h\u00ecnh d\u1ea1ng v\u00e0 \u1ee9ng d\u1ee5ng \u0111\u1eb7c bi\u1ec7t. S\u1ef1 linh ho\u1ea1t n\u00e0y cho ph\u00e9p c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 \u0111\u1ed9i ng\u0169 b\u1ea3o tr\u00ec t\u00ecm ra s\u1ef1 c\u00e2n b\u1eb1ng ho\u00e0n h\u1ea3o gi\u1eefa chi ph\u00ed, hi\u1ec7u su\u1ea5t v\u00e0 tu\u1ed5i th\u1ecd.<\/p>\n<p>B\u1eb1ng c\u00e1ch cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p v\u1eadt li\u1ec7u t\u1eeb tr\u01b0\u1eddng t\u00f9y ch\u1ec9nh, NBAEM h\u1ed7 tr\u1ee3 c\u00e1c m\u00e1y ph\u00e1t \u0111i\u1ec7n duy tr\u00ec ngu\u1ed3n \u0111i\u1ec7n \u1ed5n \u0111\u1ecbnh \u0111\u1ed3ng th\u1eddi gi\u1ea3m thi\u1ec3u b\u1ea3o tr\u00ec v\u00e0 m\u00e0i m\u00f2n. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y mang l\u1ea1i l\u1ee3i \u00edch cho kh\u00e1ch h\u00e0ng \u0111\u1ecba ph\u01b0\u01a1ng t\u1ea1i Vi\u1ec7t Nam, nh\u1eefng ng\u01b0\u1eddi t\u00ecm ki\u1ebfm nam ch\u00e2m ch\u1ea5t l\u01b0\u1ee3ng cao, \u0111\u00e1ng tin c\u1eady cho c\u00e1c thi\u1ebft k\u1ebf m\u00e1y ph\u00e1t \u0111a d\u1ea1ng.<\/p>\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam chi ti\u1ebft v\u1ec1 c\u00e1ch c\u00e1c lo\u1ea1i nam ch\u00e2m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t, b\u1ea1n c\u00f3 th\u1ec3 t\u00ecm hi\u1ec3u c\u00e1c ph\u00e2n t\u00edch c\u1ee7a NBAEM v\u1ec1\u00a0<strong><span style=\"color: #ff6600;\"><a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/vi\/type-of-magnetic-materials\/\" target=\"_blank\" rel=\"noopener\">lo\u1ea1i v\u1eadt li\u1ec7u t\u1eeb t\u00ednh<\/a><\/span><\/strong>\u00a0h\u1eefu \u00edch.<\/p>\n<h2>Nh\u1eefng hi\u1ec3u bi\u1ebft th\u1ef1c t\u1ebf, \u1ea2nh h\u01b0\u1edfng c\u1ee7a nam ch\u00e2m \u0111\u1ebfn hi\u1ec7u su\u1ea5t, Hi\u1ec7u qu\u1ea3 v\u00e0 c\u00f4ng su\u1ea5t c\u1ee7a m\u00e1y ph\u00e1t \u0111i\u1ec7n<\/h2>\n<p>Nam ch\u00e2m \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong hi\u1ec7u su\u1ea5t c\u1ee7a m\u00e1y ph\u00e1t \u0111i\u1ec7n, \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn hi\u1ec7u qu\u1ea3 v\u00e0 c\u00f4ng su\u1ea5t. Nam ch\u00e2m m\u1ea1nh h\u01a1n t\u1ea1o ra tr\u01b0\u1eddng t\u1eeb m\u1ea1nh h\u01a1n, gi\u00fap t\u1ea1o ra nhi\u1ec1u \u0111i\u1ec7n h\u01a1n t\u1eeb c\u00f9ng m\u1ed9t l\u01b0\u1ee3ng n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 m\u00e1y ph\u00e1t c\u00f3 th\u1ec3 s\u1ea3n xu\u1ea5t c\u00f4ng su\u1ea5t cao h\u01a1n m\u00e0 kh\u00f4ng c\u1ea7n th\u00eam nhi\u00ean li\u1ec7u ho\u1eb7c n\u0103ng l\u01b0\u1ee3ng \u0111\u1ea7u v\u00e0o.<\/p>\n<p>Nam ch\u00e2m v\u0129nh c\u1eedu, \u0111\u1eb7c bi\u1ec7t l\u00e0 nh\u1eefng lo\u1ea1i l\u00e0m t\u1eeb v\u1eadt li\u1ec7u ch\u1ea5t l\u01b0\u1ee3ng cao nh\u01b0 neodymium, cung c\u1ea5p \u0111\u1ed9 m\u1ea1nh t\u1eeb \u1ed5n \u0111\u1ecbnh v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 b\u1eb1ng c\u00e1ch gi\u1ea3m t\u1ed5n th\u1ea5t n\u0103ng l\u01b0\u1ee3ng trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn c\u00f4ng su\u1ea5t t\u1ed1t h\u01a1n v\u00e0 \u00edt sinh nhi\u1ec7t h\u01a1n, gi\u00fap m\u00e1y ph\u00e1t ho\u1ea1t \u0111\u1ed9ng tr\u01a1n tru trong th\u1eddi gian d\u00e0i. Ng\u01b0\u1ee3c l\u1ea1i, nam ch\u00e2m y\u1ebfu ho\u1eb7c ch\u1ea5t l\u01b0\u1ee3ng th\u1ea5p c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m c\u00f4ng su\u1ea5t c\u1ee7a m\u00e1y ph\u00e1t, khi\u1ebfn n\u00f3 k\u00e9m \u0111\u00e1ng tin c\u1eady v\u00e0 t\u1ed1n k\u00e9m h\u01a1n trong v\u1eadn h\u00e0nh.<\/p>\n<p>L\u01b0u l\u01b0\u1ee3ng t\u1eeb\u2014l\u01b0\u1ee3ng tr\u01b0\u1eddng t\u1eeb \u0111i qua cu\u1ed9n d\u00e2y c\u1ee7a m\u00e1y ph\u00e1t\u2014l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi ch\u1ea5t l\u01b0\u1ee3ng nam ch\u00e2m. T\u1ed1i \u01b0u h\u00f3a l\u01b0u l\u01b0\u1ee3ng t\u1eeb t\u0103ng \u0111i\u1ec7n \u00e1p v\u00e0 d\u00f2ng \u0111i\u1ec7n sinh ra, c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 t\u1ed5ng th\u1ec3. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao nhi\u1ec1u m\u00e1y ph\u00e1t hi\u1ec7n \u0111\u1ea1i s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u t\u1eeb tr\u01b0\u1eddng ti\u00ean ti\u1ebfn, nh\u01b0 c\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u trong danh m\u1ee5c c\u1ee7a NBAEM\u00a0<strong><span style=\"color: #ff6600;\"><a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/vi\/type-of-magnetic-materials\/\" target=\"_blank\" rel=\"noopener\">v\u1eadt li\u1ec7u t\u1eeb tr\u01b0\u1eddng cho m\u00e1y ph\u00e1t \u0111i\u1ec7n<\/a>,<\/span><\/strong> \u0111\u1ec3 t\u1ed1i \u0111a h\u00f3a hi\u1ec7u su\u1ea5t.<\/p>\n<p>T\u00f3m l\u1ea1i, hi\u1ec7u qu\u1ea3 v\u00e0 c\u00f4ng su\u1ea5t c\u1ee7a m\u00e1y ph\u00e1t ph\u1ee5 thu\u1ed9c l\u1edbn v\u00e0o \u0111\u1ed9 m\u1ea1nh v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a nam ch\u00e2m. L\u1ef1a ch\u1ecdn nam ch\u00e2m ph\u00f9 h\u1ee3p kh\u00f4ng ch\u1ec9 n\u00e2ng cao kh\u1ea3 n\u0103ng sinh \u0111i\u1ec7n m\u00e0 c\u00f2n gi\u00fap gi\u1ea3m m\u00e0i m\u00f2n, gi\u1ea3m thi\u1ec3u b\u1ea3o tr\u00ec v\u00e0 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a m\u00e1y ph\u00e1t.<\/p>\n<h2>Th\u1eddi gian s\u1eed d\u1ee5ng v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 b\u1ea3o tr\u00ec<\/h2>\n<p>Nam ch\u00e2m \u0111\u00f3ng vai tr\u00f2 l\u1edbn trong vi\u1ec7c duy tr\u00ec hi\u1ec7u su\u1ea5t c\u1ee7a m\u00e1y ph\u00e1t trong th\u1eddi gian d\u00e0i v\u00e0 gi\u1ea3m thi\u1ec3u c\u00f4ng vi\u1ec7c b\u1ea3o tr\u00ec. Nam ch\u00e2m v\u0129nh c\u1eedu, nh\u01b0 nam ch\u00e2m neodymium \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u m\u00e1y ph\u00e1t, kh\u00f4ng c\u1ea7n n\u0103ng l\u01b0\u1ee3ng b\u1ed5 sung \u0111\u1ec3 duy tr\u00ec tr\u01b0\u1eddng t\u1eeb, gi\u00fap gi\u1ea3m m\u00e0i m\u00f2n. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 \u00edt b\u1ed9 ph\u1eadn c\u01a1 kh\u00ed ch\u1ecbu \u00e1p l\u1ef1c h\u01a1n, gi\u00fap m\u00e1y ph\u00e1t ho\u1ea1t \u0111\u1ed9ng b\u1ec1n b\u1ec9 h\u01a1n.<\/p>\n<p>Ng\u01b0\u1ee3c l\u1ea1i, c\u00e1c m\u00e1y ph\u00e1t \u0111i\u1ec7n \u0111i\u1ec7n t\u1eeb d\u1ef1a v\u00e0o cu\u1ed9n d\u00e2y v\u00e0 d\u00f2ng \u0111i\u1ec7n \u0111\u1ec3 t\u1ea1o ra tr\u01b0\u1eddng t\u1eeb. C\u00e1c b\u1ed9 ph\u1eadn n\u00e0y c\u00f3 th\u1ec3 hao m\u00f2n theo th\u1eddi gian do nhi\u1ec7t v\u00e0 t\u1ea3i \u0111i\u1ec7n, do \u0111\u00f3 c\u1ea7n b\u1ea3o tr\u00ec \u0111\u1ecbnh k\u1ef3 \u0111\u1ec3 tr\u00e1nh h\u1ecfng h\u00f3c. Ki\u1ec3m tra k\u1ebft n\u1ed1i v\u00e0 t\u00ecnh tr\u1ea1ng cu\u1ed9n d\u00e2y th\u01b0\u1eddng xuy\u00ean gi\u00fap h\u1ec7 th\u1ed1ng ho\u1ea1t \u0111\u1ed9ng tr\u01a1n tru.<\/p>\n<p>Vi\u1ec7c s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u t\u1eeb tr\u01b0\u1eddng ch\u1ea5t l\u01b0\u1ee3ng cao c\u0169ng gi\u1ea3m thi\u1ec3u r\u1ee7i ro m\u1ea5t t\u1eeb t\u00ednh do nhi\u1ec7t ho\u1eb7c va \u0111\u1eadp m\u1ea1nh. \u0110i\u1ec1u n\u00e0y b\u1ea3o v\u1ec7 hi\u1ec7u qu\u1ea3 c\u1ee7a m\u00e1y ph\u00e1t v\u00e0 gi\u1ea3m kh\u1ea3 n\u0103ng ph\u1ea3i s\u1eeda ch\u1eefa ho\u1eb7c thay th\u1ebf \u0111\u1eaft \u0111\u1ecf.<\/p>\n<p>T\u00f3m l\u1ea1i, nam ch\u00e2m \u0111\u01b0\u1ee3c ch\u1ecdn \u0111\u00fang c\u00e1ch gi\u1ea3m thi\u1ec3u c\u00f4ng vi\u1ec7c b\u1ea3o tr\u00ec v\u00e0 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a m\u00e1y ph\u00e1t, l\u00e0 l\u1ef1a ch\u1ecdn th\u00f4ng minh cho nh\u1eefng ai ph\u1ee5 thu\u1ed9c v\u00e0o ngu\u1ed3n \u0111i\u1ec7n \u0111\u00e1ng tin c\u1eady t\u1ea1i th\u1ecb tr\u01b0\u1eddng Vi\u1ec7t Nam.<\/p>\n<h2>Nh\u1eefng hi\u1ec3u bi\u1ebft th\u1ef1c t\u1ebf, \u1ea2nh h\u01b0\u1edfng c\u1ee7a nam ch\u00e2m \u0111\u1ebfn hi\u1ec7u su\u1ea5t m\u00e1y ph\u00e1t \u0111i\u1ec7n, L\u1ee3i \u00edch v\u1ec1 m\u00f4i tr\u01b0\u1eddng v\u00e0 kinh t\u1ebf<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/pub-36eea33d6f1540d281c285671ffb8664.r2.dev\/2025\/09\/18\/Magnets_Impact_on_Generator_Efficiency_TqLDzwGnN.webp\" alt=\"\u1ea2nh h\u01b0\u1edfng c\u1ee7a Nam ch\u00e2m \u0111\u1ebfn Hi\u1ec7u qu\u1ea3 c\u1ee7a M\u00e1y ph\u00e1t \u0111i\u1ec7n\" \/><\/p>\n<p>Nam ch\u00e2m \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c l\u00e0m cho c\u00e1c m\u00e1y ph\u00e1t kh\u00f4ng ch\u1ec9 hi\u1ec7u qu\u1ea3 m\u00e0 c\u00f2n th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1ch ch\u1ea5t l\u01b0\u1ee3ng nam ch\u00e2m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u1ea3 m\u00f4i tr\u01b0\u1eddng l\u1eabn ng\u00e2n s\u00e1ch c\u1ee7a b\u1ea1n:<\/p>\n<p><strong>L\u1ee3i \u00edch v\u1ec1 m\u00f4i tr\u01b0\u1eddng<\/strong><\/p>\n<ul>\n<li><strong>Gi\u1ea3m l\u00e3ng ph\u00ed n\u0103ng l\u01b0\u1ee3ng:<\/strong>\u00a0Nam ch\u00e2m m\u1ea1nh c\u1ea3i thi\u1ec7n c\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb, c\u00f3 ngh\u0129a l\u00e0 t\u1ea1o ra nhi\u1ec1u \u0111i\u1ec7n h\u01a1n v\u1edbi \u00edt n\u0103ng l\u01b0\u1ee3ng \u0111\u1ea7u v\u00e0o h\u01a1n.<\/li>\n<li><strong>Gi\u1ea3m d\u1ea5u ch\u00e2n carbon:<\/strong>\u00a0M\u00e1y ph\u00e1t \u0111i\u1ec7n hi\u1ec7u qu\u1ea3 ti\u00eau th\u1ee5 \u00edt nhi\u00ean li\u1ec7u h\u01a1n ho\u1eb7c d\u1ef1a nhi\u1ec1u h\u01a1n v\u00e0o ngu\u1ed3n t\u00e1i t\u1ea1o, gi\u1ea3m kh\u00ed nh\u00e0 k\u00ednh th\u1ea3i ra.<\/li>\n<li><strong>Ho\u1ea1t \u0111\u1ed9ng \u00eam \u00e1i:<\/strong>\u00a0M\u00e1y ph\u00e1t \u0111i\u1ec7n t\u1eeb tr\u01b0\u1eddng v\u0129nh c\u1eedu (PMGs) th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng y\u00ean t\u0129nh h\u01a1n, gi\u1ea3m \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n trong khu d\u00e2n c\u01b0 v\u00e0 c\u00e1c khu v\u1ef1c nh\u1ea1y c\u1ea3m.<\/li>\n<li><strong>Tu\u1ed5i th\u1ecd l\u00e2u h\u01a1n:<\/strong>\u00a0V\u1eadt li\u1ec7u t\u1eeb t\u00ednh b\u1ec1n ch\u1eafc c\u00f3 ngh\u0129a l\u00e0 \u00edt thay th\u1ebf h\u01a1n v\u00e0 \u00edt ch\u1ea5t th\u1ea3i h\u01a1n theo th\u1eddi gian.<\/li>\n<\/ul>\n<p><strong>L\u1ee3i \u00edch kinh t\u1ebf<\/strong><\/p>\n<div class=\"table-responsive\">\n<table class=\"table\">\n<thead>\n<tr>\n<th>L\u1ee3i \u00edch<\/th>\n<th>Gi\u1ea3i th\u00edch<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Hi\u1ec7u qu\u1ea3 cao h\u01a1n<\/td>\n<td>Nam ch\u00e2m t\u1ed1t h\u01a1n t\u0103ng c\u00f4ng su\u1ea5t, gi\u1ea3m chi ph\u00ed n\u0103ng l\u01b0\u1ee3ng.<\/td>\n<\/tr>\n<tr>\n<td>B\u1ea3o tr\u00ec gi\u1ea3m<\/td>\n<td>Thu\u1ed9c t\u00ednh t\u1eeb \u1ed5n \u0111\u1ecbnh gi\u1ea3m th\u1eddi gian ch\u1ebft v\u00e0 chi ph\u00ed s\u1eeda ch\u1eefa.<\/td>\n<\/tr>\n<tr>\n<td>Th\u1eddi gian s\u1eed d\u1ee5ng l\u00e2u h\u01a1n<\/td>\n<td>V\u1eadt li\u1ec7u ch\u1ea5t l\u01b0\u1ee3ng gi\u1ea3m nhu c\u1ea7u thay th\u1ebf th\u01b0\u1eddng xuy\u00ean.<\/td>\n<\/tr>\n<tr>\n<td>Ti\u00eau th\u1ee5 nhi\u00ean li\u1ec7u th\u1ea5p h\u01a1n<\/td>\n<td>Nam ch\u00e2m hi\u1ec7u qu\u1ea3 gi\u1ea3m ti\u00eau th\u1ee5 nhi\u00ean li\u1ec7u trong c\u00e1c m\u00e1y ph\u00e1t \u0111i\u1ec7n ch\u1ea1y b\u1eb1ng \u0111\u1ed1t ch\u00e1y.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u0110\u1ea7u t\u01b0 v\u00e0o v\u1eadt li\u1ec7u t\u1eeb cao c\u1ea5p gi\u00fap cung c\u1ea5p ngu\u1ed3n \u0111i\u1ec7n \u0111\u00e1ng tin c\u1eady v\u1edbi t\u00e1c \u0111\u1ed9ng m\u00f4i tr\u01b0\u1eddng \u00edt h\u01a1n v\u00e0 chi ph\u00ed v\u1eadn h\u00e0nh th\u1ea5p h\u01a1n. S\u1ef1 c\u00e2n b\u1eb1ng n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c h\u1ed9 gia \u0111\u00ecnh v\u00e0 doanh nghi\u1ec7p t\u1ea1i Vi\u1ec7t Nam h\u01b0\u1edbng t\u1edbi c\u00e1c gi\u1ea3i ph\u00e1p n\u0103ng l\u01b0\u1ee3ng b\u1ec1n v\u1eefng, gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng.<\/p>\n<h2>Nh\u1eefng hi\u1ec3u l\u1ea7m ph\u1ed5 bi\u1ebfn v\u00e0 c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 nam ch\u00e2m trong m\u00e1y ph\u00e1t \u0111i\u1ec7n<\/h2>\n<p>Nhi\u1ec1u ng\u01b0\u1eddi hi\u1ec3u sai v\u1ec1 c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a nam ch\u00e2m trong c\u00e1c m\u00e1y ph\u00e1t \u0111i\u1ec7n. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 hi\u1ec3u l\u1ea7m ph\u1ed5 bi\u1ebfn \u0111\u01b0\u1ee3c l\u00e0m r\u00f5 v\u00e0 c\u00e2u tr\u1ea3 l\u1eddi nhanh cho c\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p.<\/p>\n<h3>Hi\u1ec3u l\u1ea7m 1: Nam ch\u00e2m t\u1ef1 t\u1ea1o ra \u0111i\u1ec7n<\/h3>\n<p>Nam ch\u00e2m kh\u00f4ng t\u1ef1 t\u1ea1o ra \u0111i\u1ec7n. Ch\u00fang gi\u00fap t\u1ea1o ra \u0111i\u1ec7n b\u1eb1ng c\u00e1ch t\u1ea1o ra m\u1ed9t tr\u01b0\u1eddng t\u1eeb t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c cu\u1ed9n d\u00e2y. S\u1ef1 t\u01b0\u01a1ng t\u00e1c n\u00e0y, g\u1ecdi l\u00e0 c\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb, ch\u00ednh l\u00e0 qu\u00e1 tr\u00ecnh t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n.<\/p>\n<h3>Hi\u1ec3u l\u1ea7m 2: Nam ch\u00e2m m\u1ea1nh h\u01a1n lu\u00f4n ngh\u0129a l\u00e0 m\u00e1y ph\u00e1t \u0111i\u1ec7n t\u1ed1t h\u01a1n<\/h3>\n<p>Trong khi nam ch\u00e2m m\u1ea1nh nh\u01b0 nam ch\u00e2m neodymium c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3, c\u00e1c y\u1ebfu t\u1ed1 kh\u00e1c nh\u01b0 thi\u1ebft k\u1ebf cu\u1ed9n d\u00e2y, t\u1ed1c \u0111\u1ed9 quay v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng v\u1eadt li\u1ec7u c\u0169ng \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng. Ch\u1ec9 s\u1eed d\u1ee5ng nam ch\u00e2m m\u1ea1nh h\u01a1n kh\u00f4ng \u0111\u1ea3m b\u1ea3o c\u00f4ng su\u1ea5t cao h\u01a1n.<\/p>\n<h3>Hi\u1ec3u l\u1ea7m 3: T\u1ea5t c\u1ea3 c\u00e1c m\u00e1y ph\u00e1t \u0111i\u1ec7n \u0111\u1ec1u s\u1eed d\u1ee5ng nam ch\u00e2m v\u0129nh c\u1eedu<\/h3>\n<p>C\u00f3 nhi\u1ec1u lo\u1ea1i m\u00e1y ph\u00e1t \u0111i\u1ec7n kh\u00e1c nhau. M\u1ed9t s\u1ed1 s\u1eed d\u1ee5ng nam ch\u00e2m v\u0129nh c\u1eedu (nh\u01b0 PMGs), trong khi nh\u1eefng lo\u1ea1i kh\u00e1c d\u1ef1a v\u00e0o electromagnet c\u1ea7n ngu\u1ed3n \u0111i\u1ec7n b\u00ean ngo\u00e0i \u0111\u1ec3 t\u1ea1o ra t\u1eeb tr\u01b0\u1eddng c\u1ee7a ch\u00fang. H\u1ec7 th\u1ed1ng lai k\u1ebft h\u1ee3p c\u1ea3 hai \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u su\u1ea5t t\u1ed1t h\u01a1n.<\/p>\n<h3>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p 1: Nam ch\u00e2m k\u00e9o d\u00e0i bao l\u00e2u trong m\u00e1y ph\u00e1t \u0111i\u1ec7n?<\/h3>\n<p>Nam ch\u00e2m ch\u1ea5t l\u01b0\u1ee3ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 lo\u1ea1i hi\u1ebfm \u0111\u1ea5t hi\u1ebfm, c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i nhi\u1ec1u n\u0103m m\u00e0 kh\u00f4ng m\u1ea5t \u0111i \u0111\u00e1ng k\u1ec3 t\u1eeb t\u00ednh. Tuy nhi\u00ean, c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 nhi\u1ec7t \u0111\u1ed9 v\u00e0 h\u01b0 h\u1ecfng v\u1eadt l\u00fd c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m tu\u1ed5i th\u1ecd c\u1ee7a ch\u00fang.\u00a0<strong><span style=\"color: #ff6600;\"><a style=\"color: #ff6600;\" href=\"https:\/\/nbaem.com\/vi\/how-long-does-neodymium-magnets-last\/\" target=\"_blank\" rel=\"noopener\">T\u00ecm hi\u1ec3u v\u1ec1 th\u1eddi gian nam ch\u00e2m neodymium t\u1ed3n t\u1ea1i<\/a><\/span><\/strong>\u00a0\u0111\u1ec3 c\u00f3 th\u00eam nh\u1eefng hi\u1ec3u bi\u1ebft s\u00e2u h\u01a1n.<\/p>\n<h3>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p 2: Nam ch\u00e2m trong m\u00e1y ph\u00e1t \u0111i\u1ec7n c\u00f3 th\u1ec3 m\u1ea5t t\u1eeb t\u00ednh theo th\u1eddi gian kh\u00f4ng?<\/h3>\n<p>C\u00f3, nam ch\u00e2m c\u00f3 th\u1ec3 m\u1ea5t \u0111i \u0111\u1ed9 m\u1ea1nh do nhi\u1ec7t, t\u1eeb tr\u01b0\u1eddng m\u1ea1nh b\u00ean ngo\u00e0i ho\u1eb7c s\u1ed1c v\u1eadt l\u00fd. Nh\u01b0ng nam ch\u00e2m ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1t \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o \u0111\u1ec3 ch\u1ed1ng l\u1ea1i \u0111i\u1ec1u n\u00e0y. B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 nam ch\u00e2m l\u1ea1i m\u1ed9t s\u1ed1 lo\u1ea1i nam ch\u00e2m n\u1ebfu c\u1ea7n thi\u1ebft.<\/p>\n<h3>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p 3: T\u1ea1i sao m\u1ed9t s\u1ed1 m\u00e1y ph\u00e1t \u0111i\u1ec7n s\u1eed d\u1ee5ng electromagnet thay v\u00ec nam ch\u00e2m v\u0129nh c\u1eedu?<\/h3>\n<p>Electromagnet cho ph\u00e9p ki\u1ec3m so\u00e1t c\u01b0\u1eddng \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng, \u0111i\u1ec1u n\u00e0y h\u1eefu \u00edch cho c\u00e1c m\u00e1y ph\u00e1t \u0111i\u1ec7n l\u1edbn h\u01a1n ho\u1eb7c n\u01a1i c\u1ea7n c\u00f4ng su\u1ea5t bi\u1ebfn \u0111\u1ed5i. Tuy nhi\u00ean, ch\u00fang y\u00eau c\u1ea7u n\u0103ng l\u01b0\u1ee3ng b\u1ed5 sung \u0111\u1ec3 cung c\u1ea5p ngu\u1ed3n cho ch\u00ednh nam ch\u00e2m.<\/p>\n<h3>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p 4: C\u00e1c lo\u1ea1i nam ch\u00e2m n\u00e0o th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u00e1y ph\u00e1t \u0111i\u1ec7n?<\/h3>\n<p>Nam ch\u00e2m v\u0129nh c\u1eedu nh\u01b0 neodymium, samarium-cobalt v\u00e0 ceramic ph\u1ed5 bi\u1ebfn trong c\u00e1c m\u00e1y ph\u00e1t \u0111i\u1ec7n nh\u1ecf \u0111\u1ebfn trung b\u00ecnh. C\u00e1c nh\u00e0 m\u00e1y \u0111i\u1ec7n l\u1edbn th\u01b0\u1eddng s\u1eed d\u1ee5ng electromagnet do y\u00eau c\u1ea7u v\u1ec1 tr\u01b0\u1eddng c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh \u0111\u01b0\u1ee3c.<\/p>","protected":false},"excerpt":{"rendered":"<p>Nguy\u00ean t\u1eafc c\u01a1 b\u1ea3n v\u1ec1 c\u00e1ch t\u1ea1o ra \u0111i\u1ec7n b\u1eb1ng nam ch\u00e2m  \nM\u00e1y ph\u00e1t \u0111i\u1ec7n l\u00e0 g\u00ec  \nV\u1ec1 c\u01a1 b\u1ea3n, m\u1ed9t m\u00e1y ph\u00e1t \u0111i\u1ec7n l\u00e0 thi\u1ebft b\u1ecb chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc th\u00e0nh n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n. Qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i n\u00e0y d\u1ef1a nhi\u1ec1u v\u00e0o nam ch\u00e2m v\u00e0 s\u1ef1 t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c tr\u01b0\u1eddng t\u1eeb v\u00e0 d\u00e2y d\u1eabn. N\u00f3i m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, khi m\u1ed9t d\u00e2y d\u1eabn nh\u01b0 d\u00e2y [\u2026]<\/p>","protected":false},"author":1,"featured_media":1353,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_mi_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1461","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2024\/10\/permanent-magnet-motor.png","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/1461","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/comments?post=1461"}],"version-history":[{"count":3,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/1461\/revisions"}],"predecessor-version":[{"id":2929,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/1461\/revisions\/2929"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/1353"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=1461"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=1461"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=1461"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}