{"id":16285,"date":"2026-10-10T08:30:26","date_gmt":"2026-10-10T08:30:26","guid":{"rendered":"https:\/\/www.hndfcrane.com\/?post_type=posts&#038;p=16285"},"modified":"2026-10-10T08:40:39","modified_gmt":"2026-10-10T08:40:39","slug":"field-weakening-speed-control-in-crane-drive-system","status":"publish","type":"posts","link":"https:\/\/www.hndfcrane.com\/vi\/posts\/field-weakening-speed-control-in-crane-drive-system\/","title":{"rendered":"\u0110i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9 suy gi\u1ea3m t\u1eeb tr\u01b0\u1eddng trong h\u1ec7 th\u1ed1ng truy\u1ec1n \u0111\u1ed9ng c\u1ea7n c\u1ea9u: Nguy\u00ean l\u00fd v\u00e0 \u1ee9ng d\u1ee5ng"},"content":{"rendered":"<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><p>M\u1ee5c l\u1ee5c<\/p><nav><ul><li><a href=\"#principle-of-field-weakening-speed-control\">Nguy\u00ean l\u00fd \u0111i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9 l\u00e0m suy y\u1ebfu t\u1eeb tr\u01b0\u1eddng<\/a><\/li><li><a href=\"#field-weakening-curve-and-load-weight-detection\">\u0110\u01b0\u1eddng cong suy gi\u1ea3m t\u1eeb tr\u01b0\u1eddng v\u00e0 ph\u00e1t hi\u1ec7n tr\u1ecdng l\u01b0\u1ee3ng t\u1ea3i<\/a><ul><li><a href=\"#method-1-load-detection-by-weighing-sensor\">Ph\u01b0\u01a1ng ph\u00e1p 1: Ph\u00e1t hi\u1ec7n t\u1ea3i tr\u1ecdng b\u1eb1ng c\u1ea3m bi\u1ebfn c\u00e2n<\/a><\/li><li><a href=\"#method-2-load-estimation-by-motor-current\">Ph\u01b0\u01a1ng ph\u00e1p 2: \u01af\u1edbc t\u00ednh t\u1ea3i b\u1eb1ng d\u00f2ng \u0111i\u1ec7n \u0111\u1ed9ng c\u01a1<\/a><\/li><\/ul><\/li><li><a href=\"#siemens-implementation-and-retrofit-notes\">Ghi ch\u00fa v\u1ec1 vi\u1ec7c tri\u1ec3n khai v\u00e0 n\u00e2ng c\u1ea5p c\u1ee7a Siemens<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1536\" height=\"1024\" src=\"https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2026\/10\/Field-Weakening-Speed-Control-in-Crane.png\" alt=\"\" class=\"wp-image-16297\"\/><\/figure>\n\n\n\n<p>Ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9 b\u1eb1ng c\u00e1ch l\u00e0m suy y\u1ebfu t\u1eeb tr\u01b0\u1eddng th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c c\u01a1 c\u1ea5u n\u00e2ng h\u1ea1 \u0111\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 ho\u1ea1t \u0111\u1ed9ng. \u00dd t\u01b0\u1edfng c\u01a1 b\u1ea3n r\u1ea5t \u0111\u01a1n gi\u1ea3n: \u0111\u1ed9ng c\u01a1 ch\u1ea1y \u1edf t\u1ed1c \u0111\u1ed9 cao nh\u1ea5t khi kh\u00f4ng t\u1ea3i, ch\u1ea1y \u1edf t\u1ed1c \u0111\u1ed9 \u0111\u1ecbnh m\u1ee9c khi c\u00f3 t\u1ea3i n\u1eb7ng, v\u00e0 s\u1eed d\u1ee5ng \u0111\u01b0\u1eddng cong l\u00e0m suy y\u1ebfu t\u1eeb tr\u01b0\u1eddng \u0111\u00e3 \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh t\u1ed1c \u0111\u1ed9 ph\u00f9 h\u1ee3p cho c\u00e1c t\u1ea3i tr\u1ecdng n\u1eb1m gi\u1eefa t\u1ea3i n\u1eb7ng v\u00e0 kh\u00f4ng t\u1ea3i.<\/p>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi h\u1ec7 th\u1ed1ng truy\u1ec1n \u0111\u1ed9ng t\u1eddi c\u1ee7a c\u1ea7n c\u1ea9u tr\u00ean cao v\u00e0 c\u1ea7n c\u1ea9u gi\u00e0n, \u0111i\u1ec1u n\u00e0y gi\u00fap t\u0103ng t\u1ed1c \u0111\u1ed9 n\u00e2ng h\u1ea1 trong \u0111i\u1ec1u ki\u1ec7n kh\u00f4ng t\u1ea3i ho\u1eb7c t\u1ea3i nh\u1eb9, gi\u1ea3m th\u1eddi gian n\u00e2ng h\u1ea1, r\u00fat ng\u1eafn chu k\u1ef3 l\u00e0m vi\u1ec7c v\u00e0 n\u00e2ng cao n\u0103ng su\u1ea5t thi\u1ebft b\u1ecb.<\/p>\n\n\n\n<p>M\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng \u0111\u1eb7c bi\u1ec7t ph\u1ea3i tu\u00e2n theo d\u1eef li\u1ec7u thi\u1ebft k\u1ebf ri\u00eang. V\u00ed d\u1ee5, tr\u00ean c\u1ea7n c\u1ea9u gi\u00e0n \u0111\u00f3ng t\u00e0u, n\u1ebfu t\u1ed1c \u0111\u1ed9 kh\u00f4ng t\u1ea3i, t\u1ea3i m\u1ed9t n\u1eeda v\u00e0 t\u1ea3i \u0111\u1ea7y \u0111\u1ee7 l\u1ea7n l\u01b0\u1ee3t l\u00e0 3, 6 v\u00e0 9 m\/ph\u00fat, v\u00e0 t\u1ef7 l\u1ec7 suy gi\u1ea3m t\u1eeb tr\u01b0\u1eddng \u0111\u1ed9ng c\u01a1 kh\u00f4ng th\u1ec3 \u0111\u1ea1t \u0111\u1ebfn ba l\u1ea7n t\u1ed1c \u0111\u1ed9 \u0111\u1ecbnh m\u1ee9c, th\u00ec t\u1ed1c \u0111\u1ed9 v\u1eadn h\u00e0nh khi t\u1ea3i \u0111\u1ea7y \u0111\u1ee7 c\u00f3 th\u1ec3 th\u1ea5p h\u01a1n t\u1ed1c \u0111\u1ed9 \u0111\u1ecbnh m\u1ee9c.<\/p>\n\n\n\n<p>Ph\u1ea7n th\u1ea3o lu\u1eadn sau \u0111\u00e2y s\u1eed d\u1ee5ng c\u1ea7n c\u1ea9u b\u1ebfn container v\u00e0 thi\u1ebft b\u1ecb d\u1ee1 h\u00e0ng t\u00e0u l\u00e0m v\u00ed d\u1ee5 v\u00ec c\u1ea3 hai \u0111\u1ec1u c\u00f3 y\u00eau c\u1ea7u hi\u1ec7u su\u1ea5t cao. T\u1ea3i tr\u1ecdng c\u1ee7a c\u01a1 c\u1ea5u n\u00e2ng h\u1ea1 kh\u00f4ng \u0111\u1ea1t \u0111\u1ebfn t\u1ea3i tr\u1ecdng \u0111\u1ecbnh m\u1ee9c trong m\u1ed7i chu k\u1ef3. \u0110\u1ed1i v\u1edbi c\u1ea7n c\u1ea9u b\u1ebfn container, tr\u1ecdng l\u01b0\u1ee3ng container th\u01b0\u1eddng n\u1eb1m trong kho\u1ea3ng t\u1eeb 3 \u0111\u1ebfn 40 t\u1ea5n, t\u00f9y thu\u1ed9c v\u00e0o h\u00e0ng h\u00f3a b\u00ean trong container. Khi t\u1ea3i tr\u1ecdng n\u1eb7ng, t\u1ed1c \u0111\u1ed9 n\u00e2ng h\u1ea1 s\u1ebd ch\u1eadm h\u01a1n. Khi t\u1ea3i tr\u1ecdng nh\u1eb9, t\u1ed1c \u0111\u1ed9 n\u00e2ng h\u1ea1 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u0103ng l\u00ean, gi\u00fap gi\u1ea3m th\u1eddi gian chu k\u1ef3 t\u1eeb ph\u00eda thi\u1ebft b\u1ecb.<\/p>\n\n\n\n<p>\u0110i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh c\u1ee7a m\u00e1y d\u1ee1 h\u00e0ng tr\u00ean t\u00e0u t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u01a1n gi\u1ea3n. Trong giai \u0111o\u1ea1n khi c\u1eeda h\u1ea7m \u0111\u1ea7y, vi\u1ec7c d\u1ee1 h\u00e0ng b\u1eb1ng g\u1ea7u x\u00fac th\u01b0\u1eddng di\u1ec5n ra g\u1ea7n nh\u01b0 \u1edf m\u1ee9c t\u1ea3i t\u1ed1i \u0111a. Khi g\u1ea7u x\u00fac m\u1edf ra, c\u01a1 c\u1ea5u ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ea3i tr\u1ecdng nh\u1eb9, do \u0111\u00f3 h\u1ec7 th\u1ed1ng ch\u1ee7 y\u1ebfu c\u1ea7n c\u00e1c d\u1ea3i t\u1ed1c \u0111\u1ed9 cao v\u00e0 th\u1ea5p. Trong giai \u0111o\u1ea1n d\u1ecdn d\u1eb9p, tr\u1ecdng l\u01b0\u1ee3ng v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c g\u1eafp m\u1ed7i l\u1ea7n thay \u0111\u1ed5i r\u1ea5t nhi\u1ec1u. Trong \u0111i\u1ec1u ki\u1ec7n n\u00e0y, ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 cao v\u1edbi t\u1ea3i tr\u1ecdng nh\u1eb9 c\u00f3 th\u1ec3 r\u00fat ng\u1eafn \u0111\u00e1ng k\u1ec3 chu k\u1ef3 l\u00e0m vi\u1ec7c.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"principle-of-field-weakening-speed-control\">Nguy\u00ean l\u00fd \u0111i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9 l\u00e0m suy y\u1ebfu t\u1eeb tr\u01b0\u1eddng<\/h2>\n\n\n\n<p>Nh\u01b0 th\u1ec3 hi\u1ec7n trong H\u00ecnh 1-1, \u0111\u01b0\u1eddng li\u1ec1n n\u00e9t bi\u1ec3u th\u1ecb m\u1ed1i quan h\u1ec7 gi\u1eefa t\u1ed1c \u0111\u1ed9 v\u00e0 c\u00f4ng su\u1ea5t, trong khi \u0111\u01b0\u1eddng n\u00e9t \u0111\u1ee9t bi\u1ec3u th\u1ecb m\u1ed1i quan h\u1ec7 gi\u1eefa t\u1ed1c \u0111\u1ed9 v\u00e0 m\u00f4-men xo\u1eafn \u0111\u1ea7u ra.<\/p>\n\n\n\n<p>Khi \u0111\u1ed9ng c\u01a1 t\u0103ng t\u1ed1c t\u1eeb t\u1ed1c \u0111\u1ed9 b\u1eb1ng kh\u00f4ng \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 \u0111\u1ecbnh m\u1ee9c n_N, c\u00f4ng su\u1ea5t \u0111\u1ea7u ra c\u1ee7a \u0111\u1ed9ng c\u01a1 t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi t\u1ed1c \u0111\u1ed9, trong khi m\u00f4-men xo\u1eafn \u0111\u1ea7u ra v\u1eabn gi\u1eef \u1edf m\u1ee9c m\u00f4-men xo\u1eafn \u0111\u1ecbnh m\u1ee9c. Ph\u1ea1m vi n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ph\u1ea1m vi \u0111\u1eb7c t\u00ednh m\u00f4-men xo\u1eafn kh\u00f4ng \u0111\u1ed5i.<\/p>\n\n\n\n<p>Khi \u0111\u1ed9ng c\u01a1 ho\u1ea1t \u0111\u1ed9ng t\u1eeb t\u1ed1c \u0111\u1ed9 \u0111\u1ecbnh m\u1ee9c n_N \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 t\u1ed1i \u0111a n_max, c\u00f4ng su\u1ea5t \u0111\u1ea7u ra c\u1ee7a \u0111\u1ed9ng c\u01a1 v\u1eabn kh\u00f4ng \u0111\u1ed5i \u1edf m\u1ee9c c\u00f4ng su\u1ea5t \u0111\u1ecbnh m\u1ee9c, trong khi m\u00f4-men xo\u1eafn \u0111\u1ea7u ra t\u1ef7 l\u1ec7 ngh\u1ecbch v\u1edbi t\u1ed1c \u0111\u1ed9. Kho\u1ea3ng ho\u1ea1t \u0111\u1ed9ng n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 kho\u1ea3ng \u0111\u1eb7c t\u00ednh c\u00f4ng su\u1ea5t kh\u00f4ng \u0111\u1ed5i.<\/p>\n\n\n\n<p>C\u00e1c \u0111\u01b0\u1eddng cong S1, S3-60%, S3-40% v\u00e0 S3-25% trong H\u00ecnh 1-1 li\u00ean quan \u0111\u1ebfn hi\u1ec7u su\u1ea5t v\u1eadn \u0111\u1ed9ng v\u00e0 ch\u1ec9 \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb nh\u01b0 v\u00ed d\u1ee5.<\/p>\n\n\n\n<p>Khi t\u1ea3i \u0111\u1ea1t \u0111\u1ebfn t\u1ea3i \u0111\u1ecbnh m\u1ee9c, \u0111\u1ed9ng c\u01a1 s\u1ebd ch\u1ea1y \u1edf t\u1ed1c \u0111\u1ed9 th\u1ea5p h\u01a1n t\u1ed1c \u0111\u1ed9 \u0111\u1ecbnh m\u1ee9c v\u00e0 duy tr\u00ec trong ph\u1ea1m vi m\u00f4-men xo\u1eafn kh\u00f4ng \u0111\u1ed5i. M\u00f4-men xo\u1eafn \u0111\u1ea7u ra c\u00f3 th\u1ec3 gi\u1eef nguy\u00ean, trong khi c\u00f4ng su\u1ea5t \u0111\u1ea7u ra ph\u1ee5 thu\u1ed9c v\u00e0o t\u1ed1c \u0111\u1ed9 \u0111\u1ed9ng c\u01a1.<\/p>\n\n\n\n<p>Khi t\u1ea3i tr\u1ecdng th\u1ea5p h\u01a1n t\u1ea3i tr\u1ecdng \u0111\u1ecbnh m\u1ee9c, \u0111\u1ed9ng c\u01a1 c\u00f3 th\u1ec3 chuy\u1ec3n sang ch\u1ebf \u0111\u1ed9 suy y\u1ebfu t\u1eeb tr\u01b0\u1eddng v\u00e0 ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 cao h\u01a1n t\u1ed1c \u0111\u1ed9 \u0111\u1ecbnh m\u1ee9c. Trong ch\u1ebf \u0111\u1ed9 c\u00f4ng su\u1ea5t kh\u00f4ng \u0111\u1ed5i n\u00e0y, c\u00f4ng su\u1ea5t \u0111\u1ea7u ra v\u1eabn kh\u00f4ng \u0111\u1ed5i v\u00e0 m\u00f4-men xo\u1eafn \u0111\u1ea7u ra gi\u1ea3m khi t\u1ed1c \u0111\u1ed9 \u0111\u1ed9ng c\u01a1 t\u0103ng.<\/p>\n\n\n\n<p>Trong c\u00f4ng t\u00e1c thi\u1ebft k\u1ebf, c\u1ea7n xem x\u00e9t c\u1ea9n th\u1eadn \u0111\u01b0\u1eddng cong \u0111\u1eb7c t\u00ednh gi\u1edbi h\u1ea1n \u0111i\u1ec7n \u00e1p v\u00e0 gi\u1edbi h\u1ea1n t\u1ed1c \u0111\u1ed9 c\u01a1 h\u1ecdc. Trong v\u1eadn h\u00e0nh th\u1ef1c t\u1ebf, c\u1ea7n duy tr\u00ec m\u1ed9t bi\u00ean \u0111\u1ed9 an to\u00e0n h\u1ee3p l\u00fd so v\u1edbi c\u00e1c gi\u1edbi h\u1ea1n n\u00e0y.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"573\" src=\"https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2026\/10\/Motor-Power-Characteristics-and-Output-Torque-Curves.png\" alt=\"\" class=\"wp-image-16294\"\/><figcaption class=\"wp-element-caption\">\u0110\u1eb7c t\u00ednh c\u00f4ng su\u1ea5t \u0111\u1ed9ng c\u01a1 v\u00e0 \u0111\u01b0\u1eddng cong m\u00f4-men xo\u1eafn \u0111\u1ea7u ra<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"field-weakening-curve-and-load-weight-detection\">\u0110\u01b0\u1eddng cong suy gi\u1ea3m t\u1eeb tr\u01b0\u1eddng v\u00e0 ph\u00e1t hi\u1ec7n tr\u1ecdng l\u01b0\u1ee3ng t\u1ea3i<\/h2>\n\n\n\n<p>\u0110\u01b0\u1eddng cong suy gi\u1ea3m t\u1eeb tr\u01b0\u1eddng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n t\u1eeb hi\u1ec7u su\u1ea5t c\u01a1 h\u1ecdc v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb g\u1ed1c (OEM) cung c\u1ea5p. Sau khi c\u00f3 \u0111\u01b0\u1eddng cong suy gi\u1ea3m t\u1eeb tr\u01b0\u1eddng, n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh trong ch\u01b0\u01a1ng tr\u00ecnh \u0111i\u1ec1u khi\u1ec3n v\u1edbi m\u1ed9t bi\u00ean \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh, ch\u1eb3ng h\u1ea1n nh\u01b0 5%.<\/p>\n\n\n\n<p>Nguy\u00ean t\u1eafc c\u01a1 b\u1ea3n c\u1ee7a \u0111i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9 ph\u1ee5 thu\u1ed9c v\u00e0o t\u1ea3i tr\u1ecdng l\u00e0 ph\u00e1t hi\u1ec7n ch\u00ednh x\u00e1c tr\u1ecdng l\u01b0\u1ee3ng t\u1ea3i. Tr\u00ean th\u1ef1c t\u1ebf, vi\u1ec7c ph\u00e1t hi\u1ec7n t\u1ea3i tr\u1ecdng th\u01b0\u1eddng l\u00e0 m\u1ed9t trong nh\u1eefng \u0111i\u1ec3m kh\u00f3 kh\u0103n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"method-1-load-detection-by-weighing-sensor\">Ph\u01b0\u01a1ng ph\u00e1p 1: Ph\u00e1t hi\u1ec7n t\u1ea3i tr\u1ecdng b\u1eb1ng c\u1ea3m bi\u1ebfn c\u00e2n<\/h3>\n\n\n\n<p>Trong qu\u00e1 tr\u00ecnh t\u0103ng t\u1ed1c n\u00e2ng h\u1ea1, ch\u01b0\u01a1ng tr\u00ecnh PLC t\u00ednh to\u00e1n tr\u1ecdng l\u01b0\u1ee3ng t\u1ea3i t\u1eeb t\u00edn hi\u1ec7u analog c\u1ee7a c\u1ea3m bi\u1ebfn c\u00e2n. Sau \u0111\u00f3, n\u00f3 t\u00ednh to\u00e1n t\u1ed1c \u0111\u1ed9 tham chi\u1ebfu c\u1ee7a \u0111\u1ed9ng c\u01a1 d\u1ef1a tr\u00ean tr\u1ecdng l\u01b0\u1ee3ng t\u1ea3i v\u00e0 \u0111\u01b0\u1eddng cong suy gi\u1ea3m t\u1eeb tr\u01b0\u1eddng, r\u1ed3i g\u1eedi t\u00edn hi\u1ec7u tham chi\u1ebfu n\u00e0y \u0111\u1ebfn bi\u1ebfn t\u1ea7n \u0111\u1ec3 \u0111\u1ed9ng c\u01a1 ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 \u0111\u00e3 t\u00ednh to\u00e1n.<\/p>\n\n\n\n<p>Tuy nhi\u00ean, d\u1eef li\u1ec7u t\u1eeb c\u1ea3m bi\u1ebfn tr\u1ecdng l\u01b0\u1ee3ng c\u00f3 th\u1ec3 b\u1ecb sai l\u1ec7ch, v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a ph\u00e9p \u0111o r\u1ea5t kh\u00f3 \u0111\u1ea3m b\u1ea3o. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra r\u1ee7i ro cao. N\u1ebfu t\u1ed1c \u0111\u1ed9 suy y\u1ebfu t\u1eeb tr\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n kh\u00f4ng ch\u00ednh x\u00e1c, t\u1ed1c \u0111\u1ed9 c\u00f3 th\u1ec3 qu\u00e1 cao, trong khi m\u00f4-men xo\u1eafn \u0111\u1ea7u ra c\u1ee7a \u0111\u1ed9ng c\u01a1 n\u00e2ng c\u00f3 th\u1ec3 kh\u00f4ng \u0111\u1ee7. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn tai n\u1ea1n m\u1ea5t ki\u1ec3m so\u00e1t, ch\u1eb3ng h\u1ea1n nh\u01b0 qu\u00e1 t\u1ed1c \u0111\u1ed9.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"method-2-load-estimation-by-motor-current\">Ph\u01b0\u01a1ng ph\u00e1p 2: \u01af\u1edbc t\u00ednh t\u1ea3i b\u1eb1ng d\u00f2ng \u0111i\u1ec7n \u0111\u1ed9ng c\u01a1<\/h3>\n\n\n\n<p>\u0110\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a c\u1ea3m bi\u1ebfn c\u00e2n, m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p \u01b0\u1edbc l\u01b0\u1ee3ng t\u1ea3i tr\u1ecdng th\u00f4ng th\u01b0\u1eddng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c tri\u1ec3n khai trong ch\u01b0\u01a1ng tr\u00ecnh PLC. D\u00f2ng \u0111i\u1ec7n c\u1ee7a \u0111\u1ed9ng c\u01a1 n\u00e2ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u00ednh to\u00e1n tr\u1ecdng l\u01b0\u1ee3ng t\u1ea3i. Trong \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh c\u1ee7a \u0111\u1ed9ng c\u01a1, m\u00f4-men xo\u1eafn \u0111\u1ea7u ra c\u1ee7a \u0111\u1ed9ng c\u01a1 t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi tr\u1ecdng l\u01b0\u1ee3ng t\u1ea3i, v\u00e0 d\u00f2ng \u0111i\u1ec7n c\u1ee7a \u0111\u1ed9ng c\u01a1 x\u1ea5p x\u1ec9 t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi m\u00f4-men xo\u1eafn \u0111\u1ea7u ra. Do \u0111\u00f3, d\u00f2ng \u0111i\u1ec7n c\u1ee7a \u0111\u1ed9ng c\u01a1 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u01b0\u1edbc l\u01b0\u1ee3ng tr\u1ecdng l\u01b0\u1ee3ng t\u1ea3i.<\/p>\n\n\n\n<p>Nh\u01b0 th\u1ec3 hi\u1ec7n trong H\u00ecnh 1-2, trong qu\u00e1 tr\u00ecnh t\u0103ng t\u1ed1c, m\u00f4-men xo\u1eafn \u0111\u1ea7u ra c\u1ee7a \u0111\u1ed9ng c\u01a1 bao g\u1ed3m b\u1ed1n ph\u1ea7n, v\u00e0 M_LOAD t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi t\u1ea3i tr\u1ecdng.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1011\" height=\"500\" src=\"https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2026\/10\/Field-Weakening-Speed-Control-\u2013-Motor-Output-Torque-Diagram.png\" alt=\"\" class=\"wp-image-16295\"\/><figcaption class=\"wp-element-caption\">\u0110i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9 b\u1eb1ng c\u00e1ch l\u00e0m suy y\u1ebfu t\u1eeb tr\u01b0\u1eddng \u2013 S\u01a1 \u0111\u1ed3 m\u00f4-men xo\u1eafn \u0111\u1ea7u ra c\u1ee7a \u0111\u1ed9ng c\u01a1<\/figcaption><\/figure>\n\n\n\n<p>H\u1ec7 s\u1ed1 t\u1ec9 l\u1ec7 K gi\u1eefa d\u00f2ng \u0111i\u1ec7n \u0111\u1ed9ng c\u01a1 A v\u00e0 t\u1ea3i T ph\u1ea3i \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng ph\u00e9p \u0111o th\u1ef1c t\u1ebf trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh th\u1eed:<\/p>\n\n\n\n<p>T = K x A<\/p>\n\n\n\n<p>Ph\u01b0\u01a1ng ph\u00e1p \u0111o l\u01b0\u1eddng nh\u01b0 sau:<\/p>\n\n\n\n<ul>\n<li>N\u00e2ng m\u1ed9t v\u1eadt c\u00f3 t\u1ea3i tr\u1ecdng x\u00e1c \u0111\u1ecbnh T_LOAD l\u00ean cho \u0111\u1ebfn khi n\u00f3 l\u01a1 l\u1eedng tr\u00ean m\u1eb7t \u0111\u1ea5t, sau \u0111\u00f3 t\u0103ng t\u1ed1c t\u1eeb tr\u1ea1ng th\u00e1i \u0111\u1ee9ng y\u00ean \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 c\u01a1 b\u1ea3n, hay t\u1ed1c \u0111\u1ed9 \u0111\u1ecbnh m\u1ee9c.<\/li>\n\n\n\n<li>Thu th\u1eadp d\u00f2ng \u0111i\u1ec7n \u0111\u1ed9ng c\u01a1 A. Vi\u1ec7c l\u1ea5y m\u1eabu d\u00f2ng \u0111i\u1ec7n ph\u1ea3i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong giai \u0111o\u1ea1n t\u0103ng t\u1ed1c v\u00ec t\u1ed1c \u0111\u1ed9 suy y\u1ebfu t\u1eeb tr\u01b0\u1eddng ph\u1ea3i \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n t\u1eeb tr\u1ecdng l\u01b0\u1ee3ng t\u1ea3i trong qu\u00e1 tr\u00ecnh t\u0103ng t\u1ed1c. \u0110\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a d\u1eef li\u1ec7u, n\u00ean l\u1ea5y m\u1eabu \u1edf gi\u1eefa giai \u0111o\u1ea1n t\u0103ng t\u1ed1c. V\u00ed d\u1ee5, n\u1ebfu th\u1eddi gian t\u0103ng t\u1ed1c t\u1eeb 0 \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 c\u01a1 b\u1ea3n l\u00e0 3 gi\u00e2y, vi\u1ec7c l\u1ea5y m\u1eabu c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u sau 1,5 gi\u00e2y ho\u1ea1t \u0111\u1ed9ng. L\u1ea5y m\u1eabu m\u1ed9t l\u1ea7n m\u1ed7i 100 ms, thu th\u1eadp t\u1ed5ng c\u1ed9ng 5 m\u1eabu v\u00e0 s\u1eed d\u1ee5ng gi\u00e1 tr\u1ecb trung b\u00ecnh c\u1ee7a 5 m\u1eabu \u0111\u00f3 l\u00e0m d\u00f2ng \u0111i\u1ec7n \u0111\u1ed9ng c\u01a1 A_M.<\/li>\n\n\n\n<li>T\u00ednh to\u00e1n K: K = T_LOAD \/ A_M<\/li>\n\n\n\n<li>Trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh th\u1ef1c t\u1ebf, h\u00e3y \u0111\u1ecdc gi\u00e1 tr\u1ecb d\u00f2ng \u0111i\u1ec7n A b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p t\u01b0\u01a1ng t\u1ef1. Sau \u0111\u00f3 t\u00ednh to\u00e1n tr\u1ecdng l\u01b0\u1ee3ng t\u1ea3i b\u1eb1ng c\u00f4ng th\u1ee9c T = K x A v\u00e0 k\u1ebft h\u1ee3p k\u1ebft qu\u1ea3 v\u1edbi \u0111\u01b0\u1eddng cong suy gi\u1ea3m t\u1eeb tr\u01b0\u1eddng \u0111\u1ec3 t\u00ednh to\u00e1n t\u1ed1c \u0111\u1ed9 suy gi\u1ea3m t\u1eeb tr\u01b0\u1eddng c\u1ee7a \u0111\u1ed9ng c\u01a1.<\/li>\n<\/ul>\n\n\n\n<p>Nh\u1eefng \u0111i\u1ec3m quan tr\u1ecdng:<\/p>\n\n\n\n<ul>\n<li>V\u00ec l\u00fd do an to\u00e0n, n\u1ebfu qu\u00e1 tr\u00ecnh l\u1ea5y m\u1eabu hi\u1ec7n t\u1ea1i th\u1ea5t b\u1ea1i ho\u1eb7c k\u1ebft qu\u1ea3 l\u1ea5y m\u1eabu kh\u00f4ng ch\u1eafc ch\u1eafn, \u0111\u1ed9ng c\u01a1 ch\u1ec9 n\u00ean ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 \u0111\u1ecbnh m\u1ee9c.<\/li>\n\n\n\n<li>T\u1ed1c \u0111\u1ed9 suy y\u1ebfu t\u1eeb tr\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n trong qu\u00e1 tr\u00ecnh n\u00e2ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m tham chi\u1ebfu cho qu\u00e1 tr\u00ecnh h\u1ea1.<\/li>\n\n\n\n<li>Sau khi m\u1ed7i chu k\u1ef3 l\u00e0m vi\u1ec7c k\u1ebft th\u00fac, t\u1ed1c \u0111\u1ed9 l\u00e0m suy y\u1ebfu t\u1eeb tr\u01b0\u1eddng ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1eb7t l\u1ea1i v\u1ec1 t\u1ed1c \u0111\u1ed9 \u0111\u1ecbnh m\u1ee9c. Tham chi\u1ebfu t\u1ed1c \u0111\u1ed9 ch\u1ec9 n\u00ean \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt sau khi t\u1ed1c \u0111\u1ed9 l\u00e0m suy y\u1ebfu t\u1eeb tr\u01b0\u1eddng h\u1ee3p l\u1ec7 \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n l\u1ea1i.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"siemens-implementation-and-retrofit-notes\">Ghi ch\u00fa v\u1ec1 vi\u1ec7c tri\u1ec3n khai v\u00e0 n\u00e2ng c\u1ea5p c\u1ee7a Siemens<\/h2>\n\n\n\n<p>C\u00e1c h\u1ec7 th\u1ed1ng Siemens \u0111\u1eddi \u0111\u1ea7u s\u1eed d\u1ee5ng c\u00e1c bo m\u1ea1ch c\u00f4ng ngh\u1ec7 nh\u01b0 T300, t\u00edch h\u1ee3p ch\u1ee9c n\u0103ng \u0111i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9 l\u00e0m suy y\u1ebfu t\u1eeb tr\u01b0\u1eddng. Ng\u01b0\u1eddi d\u00f9ng ch\u1ec9 c\u1ea7n ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng \u0111\u01a1n gi\u1ea3n v\u00e0 v\u1eadn h\u00e0nh th\u1eed c\u1ea9n th\u1eadn t\u1ea1i ch\u1ed7 tr\u01b0\u1edbc khi s\u1eed d\u1ee5ng. Bo m\u1ea1ch T300 \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t b\u00ean c\u1ea1nh bo m\u1ea1ch CUVC trong h\u1ed9p \u0111i\u1ec7n t\u1eed Masterdrive 6SE70, v\u00e0 m\u1ed9t chip EPROM \u0111\u01b0\u1ee3c g\u1eafn v\u00e0o T300, do \u0111\u00f3 ch\u01b0\u01a1ng tr\u00ecnh \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong EPROM.<\/p>\n\n\n\n<p>V\u1edbi h\u1ec7 th\u1ed1ng truy\u1ec1n \u0111\u1ed9ng SINAMICS m\u1edbi h\u01a1n, Siemens \u0111\u00e3 ph\u00e1t tri\u1ec3n g\u00f3i ph\u1ea7n m\u1ec1m \u0111i\u1ec1u khi\u1ec3n c\u1ea7n c\u1ea9u SIMOCRANE tr\u00ean n\u1ec1n t\u1ea3ng SIMOTION. N\u00f3 bao g\u1ed3m c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh c\u00f4ng ngh\u1ec7 c\u1ea7n c\u1ea9u nh\u01b0 \u0111i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9 suy gi\u1ea3m t\u1eeb tr\u01b0\u1eddng. Khi SIMOTION ng\u1eebng ho\u1ea1t \u0111\u1ed9ng, SIMOCRANE \u0111\u01b0\u1ee3c chuy\u1ec3n sang n\u1ec1n t\u1ea3ng ph\u1ea7n c\u1ee9ng CU320 v\u00e0 v\u1eabn h\u1ed7 tr\u1ee3 \u0111i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9 suy gi\u1ea3m t\u1eeb tr\u01b0\u1eddng.<\/p>\n\n\n\n<p>C\u00e1c d\u1ef1 \u00e1n n\u00e2ng c\u1ea5p c\u1ea7n s\u1ef1 ch\u00fa \u00fd \u0111\u1eb7c bi\u1ec7t. T300 kh\u00f4ng th\u1ec3 s\u1eed d\u1ee5ng trong h\u1ec7 th\u1ed1ng SINAMICS, do \u0111\u00f3 c\u00e1c ch\u1ee9c n\u0103ng c\u1ee7a n\u00f3 ph\u1ea3i \u0111\u01b0\u1ee3c chuy\u1ec3n sang PLC, CU320 ho\u1eb7c n\u1ec1n t\u1ea3ng kh\u00e1c. N\u1ebfu kh\u00f4ng, c\u1ea7n c\u1ea9u c\u00f3 ch\u1ee9c n\u0103ng l\u00e0m suy y\u1ebfu t\u1eeb tr\u01b0\u1eddng c\u00f3 th\u1ec3 b\u1ecb bi\u1ebfn \u0111\u1ed5i th\u00e0nh c\u1ea7n c\u1ea9u ch\u1ec9 c\u00f3 hai t\u1ed1c \u0111\u1ed9: t\u1ed1c \u0111\u1ed9 cao v\u00e0 t\u1ed1c \u0111\u1ed9 th\u1ea5p.<\/p>\n\n\n\n<p>Sau khi hi\u1ec3u r\u00f5 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng v\u00e0 ph\u01b0\u01a1ng ph\u00e1p th\u1ef1c hi\u1ec7n, nh\u00f3m d\u1ef1 \u00e1n c\u00f3 th\u1ec3 quy\u1ebft \u0111\u1ecbnh t\u1ef1 ph\u00e1t tri\u1ec3n ch\u1ee9c n\u0103ng \u0111\u00f3 hay mua m\u1ed9t g\u00f3i ph\u1ea7n m\u1ec1m ho\u00e0n ch\u1ec9nh. \u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng k\u1ef9 thu\u1eadt, \u0111i\u1ec1u quan tr\u1ecdng kh\u00f4ng ch\u1ec9 l\u00e0 bi\u1ebft ch\u1ee9c n\u0103ng \u0111\u00f3 l\u00e0m g\u00ec m\u00e0 c\u00f2n ph\u1ea3i hi\u1ec3u t\u1ea1i sao n\u00f3 ho\u1ea1t \u0111\u1ed9ng.<\/p>","protected":false},"excerpt":{"rendered":"Ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9 b\u1eb1ng c\u00e1ch l\u00e0m suy y\u1ebfu t\u1eeb tr\u01b0\u1eddng c\u1ee7a \u0111\u1ed9ng c\u01a1 c\u1ea9u th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c c\u01a1 c\u1ea5u n\u00e2ng h\u1ea1 \u0111\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 ho\u1ea1t \u0111\u1ed9ng. \u00dd t\u01b0\u1edfng c\u01a1 b\u1ea3n r\u1ea5t \u0111\u01a1n gi\u1ea3n: \u0111\u1ed9ng c\u01a1 ch\u1ea1y \u1edf t\u1ed1c \u0111\u1ed9 cao nh\u1ea5t khi kh\u00f4ng t\u1ea3i, ch\u1ea1y \u1edf t\u1ed1c \u0111\u1ed9 \u0111\u1ecbnh m\u1ee9c khi c\u00f3 t\u1ea3i n\u1eb7ng, v\u00e0 s\u1eed d\u1ee5ng \u0111\u01b0\u1eddng cong l\u00e0m suy y\u1ebfu t\u1eeb tr\u01b0\u1eddng \u0111\u00e3 t\u00ednh to\u00e1n \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh t\u1ed1c \u0111\u1ed9 ph\u00f9 h\u1ee3p cho c\u00e1c m\u1ee9c t\u1ea3i n\u1eb1m gi\u1eefa t\u1ea3i n\u1eb7ng [\u2026]","protected":false},"featured_media":16297,"parent":0,"menu_order":0,"template":"single-SEO-Table.php","posts_category":[197],"posts_tag":[795],"acf":[],"_links":{"self":[{"href":"https:\/\/www.hndfcrane.com\/vi\/wp-json\/wp\/v2\/xmxposts\/16285"}],"collection":[{"href":"https:\/\/www.hndfcrane.com\/vi\/wp-json\/wp\/v2\/xmxposts"}],"about":[{"href":"https:\/\/www.hndfcrane.com\/vi\/wp-json\/wp\/v2\/types\/posts"}],"version-history":[{"count":9,"href":"https:\/\/www.hndfcrane.com\/vi\/wp-json\/wp\/v2\/xmxposts\/16285\/revisions"}],"predecessor-version":[{"id":16300,"href":"https:\/\/www.hndfcrane.com\/vi\/wp-json\/wp\/v2\/xmxposts\/16285\/revisions\/16300"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hndfcrane.com\/vi\/wp-json\/wp\/v2\/media\/16297"}],"wp:attachment":[{"href":"https:\/\/www.hndfcrane.com\/vi\/wp-json\/wp\/v2\/media?parent=16285"}],"wp:term":[{"taxonomy":"posts_category","embeddable":true,"href":"https:\/\/www.hndfcrane.com\/vi\/wp-json\/wp\/v2\/posts_category?post=16285"},{"taxonomy":"posts_tag","embeddable":true,"href":"https:\/\/www.hndfcrane.com\/vi\/wp-json\/wp\/v2\/posts_tag?post=16285"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}