{"id":19633,"date":"2015-12-17T23:59:09","date_gmt":"2015-12-17T16:59:09","guid":{"rendered":"https:\/\/banbientan.com\/?p=19633"},"modified":"2015-12-17T23:59:09","modified_gmt":"2015-12-17T16:59:09","slug":"cau-tao-so-do-nguyen-ly-chi-tiet-may-bien-tan","status":"publish","type":"post","link":"https:\/\/hunglong.banbientan.com\/?p=19633","title":{"rendered":"C\u1ea5u t\u1ea1o, s\u01a1 \u0111\u1ed3, nguy\u00ean l\u00fd chi ti\u1ebft m\u00e1y bi\u1ebfn t\u1ea7n"},"content":{"rendered":"<p><em><strong>Bi\u1ebfn t\u1ea7n \u0111\u00e3 \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng m\u1ea1nh m\u1ebd trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p v\u00e0 tr\u1edf n\u00ean th\u00f4ng d\u1ee5ng v\u1edbi ch\u00fang ta.<\/strong><\/em><br \/>\n<em><strong>V\u1eady <span style=\"color: #ff0000;\">Bi\u1ebfn t\u1ea7n l\u00e0 g\u00ec ?<\/span>, <span style=\"color: #3366ff;\">C\u1ea5u t\u1ea1o nh\u01b0 th\u1ebf n\u00e0o ?<\/span>, <span style=\"color: #993366;\">Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng ra sao ?<\/span><\/strong><\/em><br \/>\n<em><strong>Trong b\u00e0i vi\u1ebft n\u00e0y ch\u00fang t\u00f4i s\u1ebd\u00a0tr\u1ea3 l\u1eddi chi ti\u1ebft \u0111\u1ea7y \u0111\u1ee7 cho c\u00e1c b\u1ea1n nh\u1eefng c\u00e2u tr\u1ea3 l\u1eddi tr\u00ean.<\/strong><\/em><br \/>\n\u0110\u00fang nh\u01b0 t\u00ean g\u1ecdi: Bi\u1ebfn t\u1ea7n\u00a0\u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ea1o ra t\u1ea7n s\u1ed1 c\u00e0i \u0111\u1eb7t linh ho\u1ea1t t\u1eeb m\u1ed9t t\u1ea7n s\u1ed1 c\u1ed1 \u0111\u1ecbnh \u0111\u01b0\u1ee3c c\u1ea5p ra t\u1eeb l\u01b0\u1edbi \u0111i\u1ec7n nh\u01b0 s\u01a1 \u0111\u1ed3 sau c\u1ee7a bi\u1ebfn t\u1ea7n 3pha 220VAC.<br \/>\n<a href=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/so-do-may-bien-tan.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-19634\" src=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/so-do-may-bien-tan.jpg\" alt=\"so do may bien tan\" width=\"955\" height=\"375\" \/><\/a><br \/>\n<strong>I, T\u1ed4NG QUAN V\u1ec0 C\u1ea4U T\u1ea0O M\u00c1Y BI\u1ebeN T\u1ea6N<\/strong><\/p>\n<ul>\n<li>M\u1ea1ch ch\u1ec9nh l\u01b0u: chuy\u1ec3n \u0111\u1ed5i AC th\u00e0nh DC. S\u1eed d\u1ee5ng b\u1ed9 ph\u1eadn b\u00e1n d\u1eabn \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi t\u00ean g\u1ecdi \u0111i \u1ed1t.<\/li>\n<li>T\u1ee5 \u0111i\u1ec7n n\u1eafn ph\u1eb3ng: Ho\u1ea1t \u0111\u1ed9ng \u0111\u1ebb n\u1eafn ph\u1eb3ng \u0111i\u1ec7n \u00e1p DC \u0111\u00e3 \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i qua m\u1ea1ch ch\u1ec9nh l\u01b0u.<\/li>\n<li>M\u1ea1ch ngh\u1ecbch l\u01b0u: \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 xu\u1ea5t ra \u0111i\u1ec7n \u00e1p AC t\u1eeb \u0111i\u1ec7n \u00e1p DC. Thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 b\u1ed9 ngh\u1ecbch l\u01b0u n\u00e0y kh\u00e1c v\u1edbi b\u1ed9 ch\u1ec9nh l\u01b0u v\u1ec1 t\u00ean g\u1ecdi v\u00e0 ch\u1ee9c n\u0103ng. \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ebb c\u1ea5p \u0111i\u1ec7n \u00e1p\/t\u1ea7n s\u1ed1 bi\u1ebfn thi\u00ean \u0111\u01b0\u1ee3c t\u1ea1o ra cho \u0111\u1ed9ng c\u01a1. S\u1eed d\u1ee5ng c\u00e1c b\u1ed9 ph\u1eadn \u0111\u00f3ng c\u1eaft b\u00e1n d\u1eabn (IGBT v\u00e0 b\u1ed9 ph\u1eadn t\u01b0\u01a1ng t\u1ef1) c\u00f3 th\u1ec3 b\u1eadt v\u00e0 t\u1eaft.<\/li>\n<li>M\u1ea1ch \u0111i\u1ec1u khi\u1ec3n: Ki\u1ec3m so\u00e1t \u0111i\u1ec1u khi\u1ec3n, c\u00e0i \u0111\u1eb7t m\u00e1y bi\u1ebfn t\u1ea7n.<\/li>\n<\/ul>\n<p><strong>1, C\u00e1c \u0111\u1eb7c t\u00ednh d\u1ea1ng s\u00f3ng:<\/strong><br \/>\n<a href=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/DAC-TINH-DANG-SONG.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-19635\" src=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/DAC-TINH-DANG-SONG.jpg\" alt=\"DAC TINH DANG SONG\" width=\"938\" height=\"341\" \/><\/a><br \/>\nC\u00e1ch thay \u0111\u1ed5i \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra khi s\u1eed d\u1ee5ng m\u00e1y bi\u1ebfn t\u1ea7n?<\/p>\n<ul>\n<li>D\u00f2ng \u0111i\u1ec7n \u0111\u1ea7u v\u00e0o: d\u1ea1ng s\u00f3ng \u0111i\u1ec7n nh\u00ecn nh\u01b0 tai th\u1ecf (Bao g\u1ed3m c\u00e1c th\u00e0nh ph\u1ea7n c\u00f3 \u0111\u1ed9 d\u1ed1c cao).<\/li>\n<li>D\u00f2ng \u0111i\u1ec7n \u0111\u1ea7u ra: d\u1ea1ng s\u00f3ng nh\u00ecn nh\u01b0 m\u1ed9t t\u1eadp h\u1ee3p c\u00e1 \u0111\u01b0\u1eddng th\u1eb3ng (h\u00ecnh ch\u1eef nh\u1eadt). Bao g\u1ed3m c\u00e1c th\u00e0nh ph\u1ea7n t\u1ea7n s\u1ed1 cao v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n xung \u0111i\u1ec7n \u00e1p.<\/li>\n<\/ul>\n<p>D\u1ea1ng s\u00f3ng n\u00e0y \u0111\u01b0\u1ee3c t\u1ea1o ra t\u1eeb c\u00e1c ho\u1ea1t \u0111\u1ed9ng b\u1eadt t\u1eafc c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn b\u00e1n d\u1eabn trong m\u00e1y bi\u1ebfn t\u1ea7n<br \/>\n<strong>2, Nguy\u00ean t\u1eafc ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ed9 ch\u1ec9nh l\u01b0u.<\/strong><br \/>\na, C\u00e1ch t\u1ea1o ra \u0111i\u1ec7n \u00e1p DC t\u1eeb l\u01b0\u1edbi \u0111i\u1ec7n AC.<br \/>\nH\u00e3y xem x\u00e9t nguy\u00ean t\u1eafc n\u00e0y b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng v\u00ed d\u1ee5 \u0111\u01a1n gi\u1ea3n v\u00e0 \u0111i\u1ec7n \u00e1p AC 1 pha.<br \/>\n\u0110\u1ec3 \u0111\u01a1n gi\u1ea3n c\u00e1ch gi\u1ea3i th\u00edch ch\u00fang ta s\u1eed d\u1ee5ng \u0111i\u1ec1u khi\u1ec3n t\u1ea3i \u0111i\u1ec7n tr\u1edd cho v\u00ed d\u1ee5 n\u00e0y:<br \/>\nTh\u00e0nh ph\u1ea7n n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t \u0111i \u1ed1t<br \/>\n\u0110i \u1ed1t ch\u1ec9 cho ph\u00e9p d\u00f2ng \u0111i\u1ec7n \u0111i qua m\u1ed9t chi\u1ec1u v\u00e0 kh\u00f4ng \u0111i v\u00e0o chi\u1ec1u kia theo h\u01b0\u1edbng s\u1eed d\u1ee5ng \u0111i\u1ec7n \u00e1p.<br \/>\n<a href=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/nguyen-tac-chinh-luu.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-19636\" src=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/nguyen-tac-chinh-luu.jpg\" alt=\"nguyen tac chinh luu\" width=\"547\" height=\"83\" \/><\/a><br \/>\nS\u1eed d\u1ee5ng \u0111\u1eb7c t\u00ednh n\u00e0y khi \u0111i\u1ec7n \u00e1p AC \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o A v\u00e0 B trong m\u1ea1ch ch\u1ec9nh l\u01b0u, \u0111i\u1ec7n \u00e1p c\u0169ng \u0111\u01b0a qua t\u1ea3i theo c\u00f9ng h\u01b0\u1edbng.<br \/>\nN\u00f3i c\u00e1ch kh\u00e1c \u0111i\u1ec7n \u00e1p AC \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i (ch\u1ec9nh l\u01b0u) th\u00e0nh \u0111i\u1ec7n \u00e1p DC.<br \/>\n<a href=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/bien-doi-AC-thanh-DC.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-19637\" src=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/bien-doi-AC-thanh-DC.jpg\" alt=\"bien doi AC thanh DC\" width=\"715\" height=\"204\" \/><\/a><br \/>\nb, Nguy\u00ean t\u1eafc ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ed9 ch\u1ec9nh l\u01b0u.<br \/>\n\u0110\u1ed1i v\u1eddi \u0111\u1ea7u v\u00e0o AC 3 pha, b\u1ed9 n\u1ed1i 6 \u0111i \u1ed1t \u0111\u01b0\u1ee3c s\u1eed dung \u0111\u1ec3 ch\u1ec9nh l\u01b0u s\u00f3ng t\u1eeb ngu\u1ed3n \u0111i\u1ec7n AC v\u00e0 t\u1ea1o ra \u0111i\u1ec7n \u00e1p \u0111\u1ea7u ra nh\u01b0 \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n trong bi\u1ec3u \u0111\u1ed3 d\u01b0\u1edbi \u0111\u00e2y.<br \/>\n<a href=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/chinh-luu-3-pha.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-19638\" src=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/chinh-luu-3-pha.jpg\" alt=\"chinh luu 3 pha\" width=\"560\" height=\"274\" \/><\/a><br \/>\nc, Nguy\u00ean t\u1eafc ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u1ea1ch n\u1eafn ph\u1eb3ng.<br \/>\nNg\u01b0\u1eddi ta d\u00f9ng t\u1ee5 \u0111i\u1ec7n \u0111\u1ec3 n\u1eafn ph\u1eb3ng \u0111i\u1ec7n \u00e1p \u0111\u1ea7u ra nh\u01b0 s\u01a1 \u0111\u1ed3 sau:<br \/>\n<a href=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/nan-phang-dien-ap.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-19640\" src=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/nan-phang-dien-ap.jpg\" alt=\"nan phang dien ap\" width=\"782\" height=\"144\" \/><\/a><br \/>\nd, M\u1ea1ch gi\u1edbi h\u1ea1n d\u00f2ng \u0111i\u1ec7n nh\u1ea3y v\u1ecdt.<a href=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/gioi-han-dien-ap.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-19641 alignright\" src=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/gioi-han-dien-ap.jpg\" alt=\"gioi han dien ap\" width=\"259\" height=\"135\" \/><\/a><br \/>\nC\u00e1c nguy\u00ean t\u1eafc ph\u00eda sau m\u00e1y ch\u1ec9nh l\u01b0u \u0111\u01b0\u1ee3c gi\u1ea3i th\u00edch b\u1eb1ng t\u1ea3i \u0111i\u1ec7n tr\u1edf nh\u01b0ng trong c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf, m\u1ed9t t\u1ee5 \u0111i\u1ec7n n\u1eafn ph\u1eb3ng s\u1ebd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m t\u1ea3i.<br \/>\nD\u00f2ng \u0111i\u1ec7n xung k\u00edch qua m\u1ea1ch, \u0111i\u1ec7n \u00e1p t\u1ee9c th\u1eddi \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 n\u1ea1p cho t\u1ee5 \u0111i\u1ec7n.<br \/>\n\u0110\u1ec3 ng\u0103n \u0111i \u1ed1t ch\u1ec9nh l\u01b0u kh\u00f4ng b\u1ecb h\u01b0 h\u1ea1i do d\u00f2ng \u0111i\u1ec7n xung k\u00edch, \u0111i\u1ec7n tr\u1edf \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0 trong m\u1ea1ch n\u1ed1i ti\u1ebfp \u0111\u1ec3 ch\u1eb7n d\u00f2ng \u0111i\u1ec7n xung k\u00edch trong th\u1eddi gian ng\u1eafn sau khi ngu\u1ed3n \u0111i\u1ec7n \u0111\u01b0\u1ee3c b\u1eadt l\u00ean.<br \/>\nDo ho\u1ea1t \u0111\u1ed9ng theo m\u1ee5c \u0111\u00edch n\u00e0y, \u0111i\u1ec7n tr\u1edd b\u1ecb \u0111o\u1ea3n m\u1ea1ch qua hai \u0111\u1ea7u n\u1ed1i c\u1ee7a n\u00f3 \u0111\u1ec3 s\u1ea3n sinh ra m\u1ed9t m\u1ea1nh b\u1ecf qua \u0111i\u1ec7n tr\u1edd.<br \/>\nM\u1ea1ch n\u00e0y \u0111\u01b0\u1ee3c nh\u1eafc \u0111\u1ebfn l\u00e0 m\u1ea1ch gi\u1edbi h\u1ea1n d\u00f2ng \u0111i\u1ec7n xung k\u00edch.<br \/>\n<a href=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/gioi-han-dong-dien.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-19642\" src=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/gioi-han-dong-dien.jpg\" alt=\"gioi han dong dien\" width=\"592\" height=\"261\" \/><\/a><br \/>\nN\u1ebfu m\u1ea1ch gi\u1edbi h\u1ea1n d\u00f2ng \u0111i\u1ec7n xung k\u00edch \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng, gi\u00e1 tr\u1ecb \u0111\u1ec9nh d\u00f2ng \u0111i\u1ec7n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c gi\u1ea3m \u0111\u1ec3 ng\u0103n m\u00f4 \u0111un b\u1ed9 ch\u1ec9nh l\u01b0u b\u1ecb h\u01b0 h\u1ea1i.<br \/>\ne,\u00a0D\u1ea1ng s\u00f3ng d\u00f2ng \u0111i\u1ec7n \u0111\u1ea7u v\u00e0o c\u00f3 t\u1ea3i t\u1ee5 \u0111i\u1ec7n.<br \/>\nC\u00e1c nguy\u00ean t\u1eafc ph\u00eda sau m\u00e1y ch\u1ec9nh l\u01b0u \u0111\u01b0\u1ee3c gi\u1ea3i th\u00edch b\u1eb1ng t\u1ea3i \u0111i\u1ec7n tr\u1edf nh\u01b0ng trong c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf, m\u1ed9t t\u1ee5 \u0111i\u1ec7n n\u1eafn ph\u1eb3ng s\u1ebd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m t\u1ea3i.<br \/>\nD\u1ea1ng s\u00f3ng d\u00f2ng \u0111i\u1ec7n \u0111\u1ea7u v\u00e0o trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y ch\u1ec9 x\u1ea3y\u00a0 ra khi di\u1ec7n \u00e1p AC cao h\u01a1n \u0111i\u1ec7n \u00e1p DC. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn d\u1ea1ng s\u00f3ng b\u1ecb xo\u1eafn nh\u01b0 tr\u00ecnh b\u00e0y trong bi\u1ec3u \u0111\u1ed3 v\u00e0 kh\u00f4ng ph\u1ea3i s\u00f3ng h\u00ecnh sin.<br \/>\n<a href=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/tai-co-tu-dien.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-19643\" src=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/tai-co-tu-dien.jpg\" alt=\"tai co tu dien\" width=\"609\" height=\"228\" \/><\/a><br \/>\n<em><strong>Nh\u01b0 \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 \u1edf c\u00e1c ph\u1ea7n tr\u00ean, b\u1ed9 ch\u1ec9nh l\u01b0u \u0111\u01b0\u1ee3c t\u1ea1o ra nh\u01b0 sau:<\/strong><\/em><br \/>\n<a href=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/so-do-khoi-chinh-luu.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-19644\" src=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/so-do-khoi-chinh-luu.jpg\" alt=\"so do khoi chinh luu\" width=\"803\" height=\"304\" \/><\/a><br \/>\n<strong>3, Nguy\u00ean t\u1eafc ho\u1ea1t \u0111\u1ed9ng b\u1ed9 ph\u1eadn ngh\u1ecbch l\u01b0u.<\/strong><br \/>\na, C\u00e1ch bi\u1ebfn \u0111\u1ed5i \u0111i\u1ec7n \u00e1p DC th\u00e0nh AC.<br \/>\nH\u00e3y xem x\u00e9t nguy\u00ean t\u1eafc n\u00e0y qua v\u00ed d\u1ee5n \u0111\u01a1n gi\u1ea3n v\u1ec1 \u0111i\u1ec7n \u00e1p AC 1 pha.<br \/>\nM\u00f4 t\u1ea3 v\u00ed d\u1ee5 sau:<br \/>\nB\u1ed1n c\u00f4ng t\u1eafc, S1 \u0111\u1ebfn S4 \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi ngu\u1ed3n \u0111i\u1ec7n \u00e1p DC, trong \u0111\u00f3 c\u00e1c c\u00f4ng t\u1eafc S1 v\u00e0 S4 \u0111\u01b0\u1ee3c gh\u00e9 v\u1edbi nhau v\u00e0 c\u00e1c c\u00f4ng t\u1eafc S2 v\u00e0 S3 c\u0169ng t\u01b0\u01a1ng t\u1ef1. Khi c\u00e1c c\u1eb7p c\u00f4ng t\u1eafc \u0111\u01b0\u1ee3c b\u1eadt, t\u1eaft, d\u00f2ng \u0111i\u1ec7n \u0111i qua \u0111\u00e8n nh\u01b0 trong bi\u1ec3u \u0111\u1ed3 d\u01b0\u1edbi \u0111\u00e2y:<br \/>\n<a href=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/vi-du-nghich-luu.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-19645\" src=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/vi-du-nghich-luu.jpg\" alt=\"vi du nghich luu\" width=\"891\" height=\"263\" \/><\/a><br \/>\nD\u1ea1ng s\u00f3ng d\u00f2ng \u0111i\u1ec7n:<br \/>\nKhi c\u00e1c c\u00f4ng t\u1eafc S1 v\u00e0 S4 \u0111\u01b0\u1ee3c b\u1eadt l\u00ean, d\u00f2ng \u0111i\u1ec7n \u0111i qua \u0111\u00e8n theo h\u01b0\u1edbng A.<br \/>\nKhi c\u00e1c c\u00f4ng t\u1eafc S2 v\u00e0 S3 \u0111\u01b0\u1ee3c b\u1eadt l\u00ean, d\u00f2ng \u0111i\u1ec7n \u0111i qua \u0111\u00e8n theo h\u01b0\u1edbng B.<br \/>\nN\u1ebfu ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00e1c c\u00f4ng t\u1eafc n\u00e0y l\u1eb7p l\u1ea1i theo m\u1ed9t chu k\u1ef3 \u0111\u1ecbnh s\u1eb5n, h\u01b0\u1edbng \u0111i c\u1ee7a d\u00f2ng \u0111i\u1ec7n s\u1ebd thay \u0111\u1ed5i qua l\u1ea1i \u0111\u1ec3 t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u.<br \/>\nb,\u00a0B\u1ea1n c\u00f3 th\u1ec3 thay \u0111\u1ed5i t\u1ea7n s\u1ed1 nh\u01b0 th\u1ebf n\u00e0o ?<br \/>\nT\u1ea7n s\u1ed1 thay \u0111\u1ed5i khi b\u1ea1n thay \u0111\u1ed5i kho\u1ea3ng th\u1eddi gian B\u1eacT v\u00e0 T\u1eaeT c\u00e1c c\u00f4ng t\u1eafc S1 v\u00e0 S4.<br \/>\nV\u00fa d\u1ee5, n\u1ebfu b\u1ea1n B\u1eacT c\u00f4ng t\u1eafc S1 v\u00e0 S4 trong 0,5 gi\u00e2y v\u00e0 sau \u0111\u00f3 B\u1eacT c\u00f4ng t\u1eafc S2 v\u00e0 S5 tr\u00f4ng 0,5 gi\u00e2y li\u00ean t\u1ee5c qua l\u1ea1i th\u00ec b\u1ea1n s\u1ebd t\u1ea1o ra m\u1ed9t d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u ng\u01b0\u1ee3c h\u01b0\u1edbng d\u00f2ng \u0111i\u1ec7n \u0111\u00f3 trong 1 gi\u00e2y, t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi t\u1ea7n s\u1ed1 1 Hz.<br \/>\n<a href=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/thay-doi-tan-so-bat-tat.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-19646\" src=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/thay-doi-tan-so-bat-tat.jpg\" alt=\"thay doi tan so bat tat\" width=\"722\" height=\"245\" \/><\/a><br \/>\nN\u00f3i c\u00e1ch kh\u00e1c, t\u1ea7n s\u1ed1 \u0111\u01b0\u1ee3c thay \u0111\u1ed5i khi th\u1eddi gian t0 thay \u0111\u1ed5i.<br \/>\nc, B\u1ea1n c\u00f3 th\u1ec3 thay \u0111\u1ed5i \u0111i\u1ec7n \u00e1p b\u1eb1ng c\u00e1ch n\u00e0o?<a href=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/thay-doi-dien-ap.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-19647 alignright\" src=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/thay-doi-dien-ap.jpg\" alt=\"thay doi dien ap\" width=\"271\" height=\"157\" \/><\/a><br \/>\n\u0110i\u1ec7n \u00e1p (trung b\u00ecnh) c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thay \u0111\u1ed5i b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i t\u1ef7 l\u1ec7 th\u1eddi gian B\u1eacT\/T\u1eaeT c\u00e1c c\u00f4ng t\u1eafc b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i th\u1eddi gian chu k\u1ef3 t0, sang th\u1eddi gian chu k\u1ef3 ng\u1eafn h\u01a1n \u0111\u1ec3 B\u1eacT\/T\u1eaeT \u0111i\u1ec7n \u00e1p.<br \/>\nT\u1ea7n s\u1ed1 cho c\u00e1c xung ng\u1eafn n\u00e0y \u0111\u01b0\u1ee3c nh\u1eafc \u0111i\u1ebfn d\u01b0\u1edbi d\u1ea1ng t\u1ea7n s\u1ed1 s\u00f3ng mang.<br \/>\nV\u00ed d\u1ee5, n\u1ebfu t\u1ef7 l\u1ec7 th\u1eddi gian B\u1eacT\/T\u1eaeT c\u1ee7a c\u00e1c c\u00f4ng t\u1eafc S1 v\u00e0 S4 b\u1ecb gi\u1ea3m m\u1ed9t n\u1eeda th\u00ec \u0111i\u1ec7n \u00e1p (trung b\u00ecnh) \u0111\u1ea7u ra tr\u1eddi th\u00e0nh \u0111i\u1ec7n \u00e1p AC t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi E\/2, ho\u1eb7c m\u1ed9t n\u1eeda \u0111i\u1ec7n \u00e1p DC,E.<br \/>\n\u0110\u1ec3 h\u1ea1 th\u1ea5p \u0111i\u1ec7n \u00e1p (trung b\u00ecnh), h\u00e3y h\u1ea1 t\u1ef7 l\u1ec7 th\u1eddi gian B\u1eacT v\u00e0 \u0111\u1ec3 n\u00e2ng \u0111i\u1ec7n \u00e1p (trung b\u00ecnh) h\u00e3y n\u00e2ng t\u1ef7 l\u1ec7 th\u1eddi gian B\u1eacT.<br \/>\n<a href=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/so-do-cach-thay-doi-dien-ap.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-19648\" src=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/so-do-cach-thay-doi-dien-ap.jpg\" alt=\"so do cach thay doi dien ap\" width=\"771\" height=\"222\" \/><\/a><br \/>\n\u0110\u1ed9 r\u1ed9ng xung t\u1ef7 l\u1ec7 B\u1eacT\/T\u1eaeT s\u1ebd \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n \u0111\u1ec3 thay \u0111\u1ed5i \u0111i\u1ec7n \u00e1p. Ph\u01b0\u01a1ng th\u1ee9c \u0111i\u1ec1u khi\u1ec3n d\u1ea1ng n\u00e0y \u0111\u01b0\u1ee3c nh\u1eafc \u0111\u1ebfn d\u01b0\u1edbi d\u1ea1ng \u0111i\u1ec1u bi\u1ebfn \u0111\u1ed9 r\u1ed9ng xung (PWM) v\u00e0 hi\u1ec7n nay th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c m\u00e1y bi\u1ebfn t\u1ea7n v\u00e0 b\u1ed9 ph\u1eadn \u0111i\u1ec7n t\u1eed kh\u00e1c.<br \/>\nd, C\u00e1ch ngh\u1ecbch l\u01b0u\u00a0v\u1edbi \u0111i\u1ec7n \u00e1p AC 3 pha?<br \/>\nC\u1ea5u t\u1ea1o c\u01a1 b\u1ea3n c\u1ee7a m\u1ea1ch bi\u1ebfn t\u1ea7n 3 pha v\u00e0 \u0111i\u1ec7n \u00e1p AC 3 pha \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y d\u01b0\u1edbi \u0111\u00e2y. N\u1ebfu b\u1ea1n thay \u0111\u1ed5i th\u1ee9 t\u1ef1 c\u1ee7a s\u00e1u c\u00f4ng t\u1eafc \u0111\u01b0\u1ee3c B\u1eacT\/T\u1eaeT, k\u1ebft qu\u1ea3 s\u1ebd thay \u0111\u1ed5i U-V, V-W v\u00e0 W-U. C\u00e1ch n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 thay \u0111\u1ed5i chi\u1ec1u quay c\u1ee7a \u0111\u1ed9ng c\u01a1.<br \/>\n<a href=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/nghich-luu-3-pha.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-19649\" src=\"https:\/\/banbientan.com\/wp-content\/uploads\/2015\/12\/nghich-luu-3-pha.jpg\" alt=\"nghich luu 3 pha\" width=\"832\" height=\"360\" \/><\/a><br \/>\nL\u01b0u \u00fd r\u1eb1ng trong th\u1ef1c t\u1ebf c\u00e1c b\u1ed9 ph\u1eadn b\u00e1n d\u1eabn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng thay cho c\u00e1c c\u00f4ng t\u1eafc \u0111\u1ec3 bi\u1ebfn \u0111\u1ed5i \u0111i\u1ec7n \u00e1p, cho ph\u00e9p c\u00e1c c\u00f4ng t\u1eafc B\u1eacT\/T\u1eaeT \u1edf t\u1ed1c \u0111\u1ed9 r\u1ea5t cao.<br \/>\n<strong>II, C\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u khi\u1ec3n m\u00e1y bi\u1ebfn t\u1ea7n<\/strong><br \/>\nM\u00e1y bi\u1ebfn t\u1ea7n \u0111a nawg duy nh\u1ea5t \u0111\u01b0\u1ee3c d\u00f9ng trong c\u00e1c l\u0129nh v\u1ef1c c\u00f4ng nghi\u1ec7p v\u00e0o nh\u1eefng n\u0103m 1980 l\u00e0 d\u1ea1ng m\u00e1y bi\u1ebfn t\u1ea7n \u0111i\u1ec1u khi\u1ec3n V\/F.<br \/>\nSau n\u00e0y, c\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u khi\u1ec3n Vector kh\u00f4ng c\u1ea3m bi\u1ebfn (t\u1ed1c \u0111\u1ed9) \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u v\u00e0o n\u0103m 1990 v\u1edbi m\u1ee5c \u0111\u00edch t\u0103ng m\u00f4 men xo\u1eafn trong ph\u1ea1m vi \u0111i\u1ec1u khi\u1ec3n t\u1ea7n s\u1ed1 th\u1ea5p hi\u1ec7u qu\u1ea3 h\u01a1n \u0111i\u1ec1u khi\u1ec3n V\/F.<br \/>\nC\u00f4ng su\u1ea5t m\u00e1y bi\u1ebfn t\u1ea7n t\u0103ng l\u00ean \u0111\u1ed9t ng\u1ed9t do c\u00e1c c\u1ea3i ti\u1ebfn v\u00e0 c\u00f4ng ngh\u1ec7 ph\u1ea7n c\u1ee9ng v\u00e0 c\u00f4ng ngh\u1ec7 l\u00fd thuy\u1ebft \u0111i\u1ec1u khi\u1ec1n bao g\u1ed3m c\u00e1c ch\u1ea5t b\u00e1n d\u1eabn.<br \/>\nKi\u1ec3m so\u00e1t V\u00e9c t\u01a1 b\u1eb1ng ph\u1ea3n h\u1ed3i t\u1ed1c \u0111\u1ed9 (Encoder) \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng l\u1ea7n \u0111\u1ea7u \u0111\u1ed1i v\u1edbi c\u00e1c \u0111\u1ed9ng c\u01a1 v\u00e0o n\u0103m 1990 \u0111\u1ed1i v\u1edbi c\u00e1c l\u0129nh v\u1ef1c c\u1ea7n t\u1ed1i \u0111i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9 ch\u00ednh x\u00e1c cao.<br \/>\nC\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u khi\u1ec3n m\u00e1y bi\u1ebfn t\u1ea7n \u0111i\u1ec3n h\u00ecnh \u0111\u01b0\u1ee3c n\u00eau trong b\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y, ch\u1ee7 y\u1ebfu l\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p li\u00ean quan t\u1edbi \u0111i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9.<br \/>\nTheo ngh\u0129a r\u1ed9ng, h\u00e3y nh\u1edb r\u1eb1ng c\u00f4ng su\u1ea5t v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c t\u0103ng l\u00ean khi b\u1ea1n chuy\u1ec3n d\u1ea7n sang ph\u00eda b\u00ean ph\u1ea3i c\u1ee7a b\u1ea3ng bi\u1ec3u \u1edf d\u01b0\u1edbi ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u khi\u1ec3n, tuy nhi\u00ean s\u1ef1 linh ho\u1ea1t v\u00e0 hi\u1ec7u qu\u1ea3 kinh t\u1ebf s\u1ebd gi\u1ea3m xu\u1ed1ng.<br \/>\n\u0110\u1ed1i v\u1edbi ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u khi\u1ec3n kh\u00f4ng d\u00f9ng c\u1ea3m bi\u1ebfn t\u1ed1c \u0111\u1ed9 d\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t trong c\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111\u01b0\u1ee3c Mitsubisshi Electric ph\u00e1t tri\u1ec3n.<\/p>\n<table>\n<tbody>\n<tr>\n<td rowspan=\"2\">Ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u khi\u1ec3n<\/td>\n<td rowspan=\"2\">\u0110\u1eb7c t\u00ednh V\/F<\/td>\n<td colspan=\"2\">\u0110i\u1ec1u khi\u1ec3n Vector kh\u00f4ng d\u00f9ng c\u1ea3m bi\u1ebfn<\/td>\n<td rowspan=\"2\">\u0110i\u1ec1u khi\u1ec3n Vector d\u00f9ng c\u1ea3m bi\u1ebfn<\/td>\n<\/tr>\n<tr>\n<td>\u0110i\u1ec1u khi\u1ec3n theo t\u1eeb th\u00f4ng<\/td>\n<td>\u0110i\u1ec1u khi\u1ec3n vector th\u1ef1c<\/td>\n<\/tr>\n<tr>\n<td>Ph\u1ea1m vi \u0111i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9<\/td>\n<td>1:10<br \/>\n(6Hz \u0111\u1ebfn 60Hz, \u0110i\u1ec7n l\u01b0\u1edbi)<\/td>\n<td>1:120<br \/>\n(0.5Hz \u0111\u1ebfn 60Hz, \u0111i\u1ec7n l\u01b0\u1edbi)<\/td>\n<td>1:200<br \/>\n(0.3Hz \u0111\u1ebfn 60Hz, \u0111i\u1ec7n l\u01b0\u1edbi)<\/td>\n<td>1:1500<br \/>\n(1 v\u00f2ng\/ph\u00fat \u0111\u1ebfn 1500 v\u00f2ng\/ph\u00fat, \u0111i\u1ec7n l\u1edbi, m\u00e1y ph\u00e1t)<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 nh\u1ea1y<\/td>\n<td>10 \u0111\u1ebfn 20 (rad\/s)<\/td>\n<td>20 \u0111\u1ebfn 30 (rad\/s)<\/td>\n<td>120 (rad\/s)<\/td>\n<td>300 (rad\/s)<\/td>\n<\/tr>\n<tr>\n<td>\u0110i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9<\/td>\n<td>C\u00f3<\/td>\n<td>C\u00f3<\/td>\n<td>C\u00f3<\/td>\n<td>C\u00f3<\/td>\n<\/tr>\n<tr>\n<td>\u0110i\u1ec1u khi\u1ec3n momen xo\u1eafn<\/td>\n<td>Kh\u00f4ng<\/td>\n<td>Kh\u00f4ng<\/td>\n<td>C\u00f3<\/td>\n<td>C\u00f3<\/td>\n<\/tr>\n<tr>\n<td>\u0110i\u1ec1u khi\u1ec3n v\u1ecb tr\u00ed<\/td>\n<td>Kh\u00f4ng<\/td>\n<td>Kh\u00f4ng<\/td>\n<td>Kh\u00f4ng<\/td>\n<td>C\u00f3<\/td>\n<\/tr>\n<tr>\n<td>S\u01a1 l\u01b0\u1ee3c<\/td>\n<td>V\u1edbi \u0111a s\u1ed1 c\u00e1c d\u1ea1ng ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u khi\u1ec3n m\u00e1y bi\u1ebfn t\u1ea7n ph\u1ed5 bi\u1ebfn, \u0111i\u1ec7n \u00e1p v\u00e0 t\u1ea7n s\u1ed1 \u0111\u01b0\u1ee3c duy tr\u00ec ki\u1ec3m so\u00e1t \u1edf c\u00e1c gi\u00e1 tr\u1ecb kh\u00f4ng \u0111\u1ed5i<\/td>\n<td>\u0110\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 gi\u1ea3 momen xo\u1eafn \u1edf t\u1ed1c \u0111\u1ed9 th\u1ea5p trong \u0111i\u1ec1u khi\u1ec3n V\/F. ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u1eb1m \u0111i\u1ec1u ch\u1ec9nh \u0111i\u1ec7n \u00e1p \u0111\u1ea7u ra b\u1eb1ng c\u00e1c ph\u00e9p t\u00ednh vector cho d\u00f2ng \u0111i\u1ec7n \u0111\u1ed9ng c\u01a1.<\/td>\n<td>\u1ede c\u00e1c \u0111\u1ed9ng c\u01a1 kh\u00f4ng c\u00f3 Encoder, ho\u1ea1t \u0111\u1ed9ng \u0111i\u1ec1u khi\u1ec3n \u0111\u1ea1t \u0111\u01b0\u1ee3c th\u00f4ng qua vi\u1ec7c t\u00ednh \u0111i\u1ec7n \u00e1p\/d\u00f2ng \u0111i\u1ec7n v\u00e0 h\u1eb1ng s\u1ed1 c\u1ee7a \u0111\u1ed9ng c\u01a1.<\/td>\n<td>Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y chia d\u00f2ng \u0111i\u1ec7n \u0111\u1ed9ng c\u01a1 th\u00e0nh c\u00e1c ph\u1ea7n theo t\u1eeb th\u00f4ng v\u00e0 c\u00e1c ph\u1ea7n do momen xo\u1eafn t\u1ea1o ta v\u00e0 s\u1eed \u0111i\u1ec1u khi\u1ec3n t\u1eebng ph\u1ea7n \u0111\u1ed9c l\u1eadp. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y cho ph\u00e9p momen xo\u1eafn v\u00e0 v\u1ecb tr\u00ed \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n \u1edf \u0111\u1ed9 ch\u00ednh x\u00e1c cao v\u00e0 \u0111\u1ed9 nh\u1ea1y cao.<\/td>\n<\/tr>\n<tr>\n<td>\u0110a n\u0103ng<\/td>\n<td>\u00a0Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y c\u1ef1c k\u1ef3 linh ho\u1ea1t \u0111\u1ed1i v\u1edbi c\u00e1c \u0111\u1ed9ng c\u01a1 ti\u00eau chu\u1ea9n c\u00f3 \u00edt b\u1ed9 ph\u1eadn \u0111i\u1ec1u khi\u1ec3n<\/td>\n<td>Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y c\u1ea7n m\u1ed9t \u0111\u1ed9ng c\u01a1 b\u1ea5t bi\u1ebfn, tuy nhi\u00ean c\u1ea5u t\u1ea1o m\u1ea1ch t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u01a1n gi\u1ea3n do c\u00f3 \u00edt b\u1ed9 ph\u1eadn \u0111i\u1ec1u khi\u1ec3n<\/td>\n<td>Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y c\u1ea7n c\u00f3 m\u1ed9t h\u1eb1ng s\u1ed1 c\u1ee7a \u0111\u1ed9ng c\u01a1 v\u00e0 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 l\u1ee3i<\/td>\n<td>Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y c\u1ea7n c\u00f3 m\u1ed9t \u0111\u1ed9ng c\u01a1 g\u1eafn encoder v\u00e0 \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9 l\u1ee3i<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9ng c\u01a1 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng<\/td>\n<td>\u0110\u1ed9ng c\u01a1 th\u01b0\u1eddng<\/td>\n<td>\u0110\u1ed9ng c\u01a1 th\u01b0\u1eddng<\/td>\n<td>\u0110\u1ed9ng c\u01a1 th\u01b0\u1eddng<\/td>\n<td>\u0110\u1ed9ng c\u01a1 c\u00f3 \u0111i\u1ec1u khi\u1ec3n vector chuy\u00ean d\u1ee5ng, g\u1eafn encoder ph\u1ea3n h\u1ed3i<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>Bi\u1ebfn t\u1ea7n \u0111\u00e3 \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng m\u1ea1nh m\u1ebd trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p v\u00e0 tr\u1edf n\u00ean th\u00f4ng d\u1ee5ng v\u1edbi ch\u00fang ta. V\u1eady Bi\u1ebfn t\u1ea7n l\u00e0 g\u00ec ?, C\u1ea5u t\u1ea1o nh\u01b0 th\u1ebf n\u00e0o ?, Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng ra sao ? Trong b\u00e0i vi\u1ebft n\u00e0y ch\u00fang t\u00f4i s\u1ebd\u00a0tr\u1ea3 l\u1eddi chi ti\u1ebft \u0111\u1ea7y \u0111\u1ee7 cho c\u00e1c b\u1ea1n [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":19634,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10411,12,13240],"tags":[12809,10042,10339,13251,13252,13253,13254,13255,13256,10343,13257],"class_list":["post-19633","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bai-9-dieu-khien-chuyen-dong-co-ban","category-cau-hoi-ve-bien-tan","category-noi-bat-1","tag-bien-doi-tan-so","tag-bien-tan-la-gi","tag-cau-tao-bien-tan","tag-cong-nghe-bien-tan","tag-cong-nghe-inverter","tag-mach-bien-tan","tag-mach-chinh-luu-bien-tan","tag-mach-dien-inverter","tag-mach-nghich-luu-bien-tan","tag-so-do-bien-tan","tag-tan-so-song-mang"],"_links":{"self":[{"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=\/wp\/v2\/posts\/19633","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=19633"}],"version-history":[{"count":0,"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=\/wp\/v2\/posts\/19633\/revisions"}],"wp:attachment":[{"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=19633"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=19633"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=19633"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}