https:\/\/www.ymgk.com\/flagship\/index\/30007.html<\/span><\/span><\/a><\/p>\n<\/div>\nThe\u00a0most\u00a0fundamental\u00a0reason\u00a0for\u00a0distinguishing\u00a0these\u00a0two\u00a0motor\u00a0types\u00a0is\u00a0that\u00a0the\u00a0design\u00a0of\u00a0the\u00a0air\u00a0gap\u00a0magnetic\u00a0field\u00a0is\u00a0different.\u00a0So\u00a0the\u00a0following\u00a0differences\u00a0arise<\/p>\n
The\u00a0back\u00a0EMF\u00a0waveform\u00a0is\u00a0different:<\/p>\n
BLDC:\u00a0Approximate\u00a0trapezoidal\u00a0wave\u00a0(ideal\u00a0state);<\/p>\n
PMSM:\u00a0sine\u00a0wave\u00a0(ideal\u00a0state);<\/p>\n
The\u00a0three-phase\u00a0current\u00a0waveforms\u00a0are\u00a0different:<\/p>\n
BLDC:\u00a0Approximate\u00a0square\u00a0wave\u00a0or\u00a0trapezoidal\u00a0wave\u00a0(ideal\u00a0state);<\/p>\n
PMSM:\u00a0sine\u00a0wave\u00a0(ideal\u00a0state);<\/p>\n
Differences\u00a0in\u00a0control\u00a0systems:<\/p>\n
BLDC:\u00a0usually\u00a0includes\u00a0position\u00a0controller,\u00a0speed\u00a0controller\u00a0and\u00a0current\u00a0(torque)\u00a0controller;<\/p>\n
PMSM:\u00a0Different\u00a0control\u00a0strategies\u00a0will\u00a0have\u00a0different\u00a0control\u00a0systems;<\/p>\n
Controls\u00a0are\u00a0different:<\/p>\n
BLDC:\u00a0120-degree\u00a0square\u00a0wave\u00a0current,\u00a0using\u00a0PWM\u00a0control;<\/p>\n
PMSM:\u00a0Positive\u00a0Xuan\u00a0wave\u00a0current,\u00a0controlled\u00a0by\u00a0SPWM\u00a0SVPWM.<\/p>\n
However,\u00a0in\u00a0actual\u00a0control,\u00a0brushless\u00a0DC\u00a0can\u00a0also\u00a0be\u00a0controlled\u00a0by\u00a0FOC,\u00a0and\u00a0permanent\u00a0magnet\u00a0synchronous\u00a0motors\u00a0can\u00a0also\u00a0be\u00a0controlled\u00a0by\u00a0square\u00a0waves.<\/p>\n
Just\u00a0like\u00a0the\u00a0controllers\u00a0of\u00a0electric\u00a0vehicles,\u00a0I\u00a0have\u00a0disassembled\u00a0and\u00a0studied\u00a0three\u00a0or\u00a0four.\u00a0The\u00a0interfaces\u00a0are\u00a0all\u00a0the\u00a0same,\u00a0the\u00a0control\u00a0chips\u00a0are\u00a0different,\u00a0and\u00a0of\u00a0course\u00a0the\u00a0control\u00a0algorithms\u00a0are\u00a0also\u00a0different.\u00a0Electric\u00a0vehicles\u00a0controlled\u00a0by\u00a0sine\u00a0waves\u00a0have\u00a0very\u00a0low\u00a0sound\u00a0when\u00a0starting\u00a0and\u00a0running,\u00a0and\u00a0there\u00a0is\u00a0no\u00a0jitter\u00a0during\u00a0operation;\u00a0but\u00a0electric\u00a0vehicles\u00a0controlled\u00a0by\u00a0square\u00a0waves\u00a0have\u00a0very\u00a0obvious\u00a0sounds,\u00a0and\u00a0the\u00a0jitter\u00a0during\u00a0operation\u00a0can\u00a0also\u00a0be\u00a0felt.\u00a0The\u00a0judder\u00a0is\u00a0due\u00a0to\u00a0definite\u00a0torque\u00a0ripples.<\/p>\n
Motors\u00a0controlled\u00a0by\u00a0square\u00a0waves\u00a0have\u00a0higher\u00a0power\u00a0efficiency,\u00a0because\u00a0motors\u00a0controlled\u00a0by\u00a0sine\u00a0waves\u00a0have\u00a0a\u00a0lower\u00a0effective\u00a0voltage.<\/p>\n
4.\u00a0Control\u00a0technology\u00a0of\u00a0permanent\u00a0magnet\u00a0synchronous\u00a0motor<\/p>\n
Permanent\u00a0magnet\u00a0synchronous\u00a0motors\u00a0and\u00a0brushless\u00a0DC\u00a0motors\u00a0can\u00a0be\u00a0operated\u00a0using\u00a0the\u00a0same\u00a0control\u00a0method.<\/p>\n
3500\/44M\u00a0176449-03\u00a0Speed\u00a0sensor\u00a0\u00a0Bently
\n3500\/42M-01-00\u00a0Speed\u00a0monitor\u00a0\u00a0Bently\u00a0Nevada
\n3500\/33\u00a0\u00a0Bently\u00a0Nevada\u00a0149986-01\u00a0preamplifier
\n3500\/33\u00a0\u00a0Bently\u00a0Nevada\u00a0preamplifier
\n3500\/25\u00a0\u00a0Bently\u00a0Nevada\u00a0Accelerometer\u00a0sensor
\n3500\/25\u00a0149369-01\u00a0Speed\u00a0sensor\u00a0\u00a0Bently
\n350022M-288055-01\u00a0Transient\u00a0data\u00a0interface\u00a0Bently
\n3500\/15\u00a0Power\u00a0module\u00a0\u00a0Bently\u00a0Nevada
\n3500\/05-02-04-00\u00a0\u00a0bently\u00a0Monitoring\u00a0vibration
\n330180-51-00\u00a0bently\u00a0preprocessor
\nBently\u00a0330100-90-01\u00a0Vibration\u00a0sensor
\n330016-11-01-03-00-00-01\u00a0BENTLY\u00a0NEVADA
\n2300\/25-00\u00a0BENTLY\u00a0monitor\u00a0module
\n140734-01\u00a04-channel\u00a0monitor\u00a0Bently
\n133442-01\u00a0Output\u00a0module\u00a0Bently
\n125720-01\u00a0\u00a0Bently\u00a0Nevada\u00a0channel\u00a0relay\u00a0module
\n3500\/65\u00a0\u00a0\u00a0Bently\u00a0Nevada\u00a0monitor
\n3500\/53\u00a0\u00a0Bently\u00a0Nevada\u00a0Overspeed\u00a0detection\u00a0module
\n330100-50-05\u00a0Bently\u00a0Nevada\u00a0\u00a0preprocessor
\n177313-01-01\u00a0Bently\u00a0Nevada\u00a0\u00a0Vibration\u00a0monitoring\u00a0module
\n149369-01\u00a0\u00a0Bently\u00a0Nevada\u00a0Key\u00a0phase\u00a0module
\n143416-01\u00a0\u00a0Bently\u00a0Nevada\u00a0\u00a0sensor
\n135613-01-00\u00a0Bently\u00a0Nevada\u00a0High\u00a0temperature\u00a0housing
\n126648-01\u00a0\u00a0Bently\u00a0Nevada\u00a0Output\u00a0module
\n125840-02\u00a0BENTLY\u00a0Low\u00a0voltage\u00a0AC\u00a0power\u00a0input\u00a0module
\n106M7607-01\u00a0\u00a0Bently\u00a0Nevada\u00a0\u00a0\u00a0relay
\n106M1079-01\u00a0\u00a0Bently\u00a0Nevada\u00a0Power\u00a0module
\n3500\/64M\u00a0140734-05\u00a0\u00a0Bently\u00a0Nevada\u00a0\u00a0Dynamic\u00a0Monitor
\n330878-90-00\u00a0\u00a0Bently\u00a0Nevada\u00a0\u00a0\u00a0Proximitor\u00a0Sensor
\n126599-01\u00a0\u00a0Bently\u00a0Nevada\u00a0Module\u00a0Internal\u00a0Terminations
\n3500\/40-04-00\u00a0\u00a0Bently\u00a0Nevada\u00a0\u00a0Proximitor\u00a0Monitor
\n140734-02\u00a0\u00a0Bently\u00a0Nevada\u00a03500\/42m\u00a0Proximitor\u00a0Seismic\u00a0Monitor
\n163179-01\u00a0\u00a0Bently\u00a0Nevada\u00a0\u00a0Temperature\u00a0Monitors
\n330180-91-RU\u00a0\u00a0Bently\u00a0Nevada\u00a0330180\u00a0Proximity\u00a0Sensor
\n330180-91-05-RU\u00a0\u00a0Bently\u00a0Nevada\u00a0\u00a0330180\u00a0Proximity\u00a0Sensor
\n3500\/15-04-04-00\u00a0\u00a0Bently\u00a0Nevada\u00a0\u00a0Power\u00a0Supply
\n330103-00-07-05-02-RU\u00a0\u00a0Bently\u00a0Nevada\u00a0\u00a0Extension\u00a0Cable
\n177230-01-01-RU\u00a0\u00a0Bently\u00a0Nevada\u00a0\u00a0Seismic\u00a0Transmitter
\n330130-045-01-05\u00a0Bently\u00a0Nevada\u00a0\u00a0Extension\u00a0Cable
\n3500\/22-01-01-R0\u00a0Bently\u00a0Nevada\u00a0\u00a0Transient\u00a0Data\u00a0Interface
\n3500\/62-04-R0\u00a0Bently\u00a0Nevada\u00a0\u00a0Process\u00a0Variable\u00a0Monitor
\n3500\/25-01-05-00\u00a0\u00a0Bently\u00a0Nevada\u00a0Enhanced\u00a0Keyphasor\u00a0Module
\n330180-90-00\u00a0\u00a0Bently\u00a0Nevada\u00a03300\u00a0XL\u00a0Proximitor\u00a0Sensor
\n330105-02-12-05-02-00\u00a0\u00a0Bently\u00a0Nevada\u00a0Reverse\u00a0Mount\u00a0Probes
\n133442-01\u00a0Bently\u00a0Nevada\u00a0I\/O\u00a0Module\u00a0\u00a0Internal\u00a0Terminations
\n60M100-00\u00a0Bently\u00a0Nevada\u00a0Monitor\u00a0Controller
\n133396-01\u00a0Overspeed\u00a0detection\u00a0I\/O\u00a0module\u00a0Bently\u00a0Nevada
\nNEW\u00a0BENTLY\u00a03500\/22M\u00a0138607-01\u00a03500\u00a0monitoring\u00a0system\u00a0Standard\u00a0transient\u00a0data\u00a0interface\u00a0module
\nBently\u00a0Nevada\u00a0330500-02-CN\u00a0Piezo-Velocity\u00a0Sensor
\nBENTLY\u00a0330101-23-39-10-12-CN\u00a0\u00a0sensor
\nBently\u00a0Nevada\u00a0200200-11-11-05\u00a0proTIM-R\u00a0Module
\nBently\u00a0Nevada\u00a01701\/10\u00a0FieldMonitor\u00a024-Volt\u00a0dc\u00a0Power\u00a0Supply
\nBently\u00a0Nevada\u00a0PWA88199-01\u00a0Rear\u00a0Control\u00a0Panel<\/p>\n","protected":false},"excerpt":{"rendered":"
Brand: ICS Model:T8311C
\nPackage\/Specification: 2x19x12.8cm
\nMinimum Packaging Quantity: 1<\/p>\n
Function: Control system accessories Features: Easy installation
\nName: Digital Input Module Processing Customization:
\nNo
\nOrigin: USA Packaging: brand new and
\nwidely used
\nChemical, papermaking, power
\ngeneration, oil and natural gas
\nQuantity: 1-999
\nBatch Number T8311C<\/p>\n
Available for sale in Beijing; Tianjin; Hebei;
\nShanxi; Inner Mongolia; Liaoning; Jilin;
\nHeilongjiang;
\nShanghai;Jiangsu; Zhejiang; Anhui; Fujian; Jiangxi; Shandong; Henan;
\nHubei; Hunan; Guangdong; Guangxi; Hainan;
\nChongqing; Sichuan Guizhou; Yunnan; Xizang
\n;
\nShaanxi Gansu; Qinghai; Ningxia; Xinjiang<\/p>\n
Purpose TMR redundant structure<\/p>\n","protected":false},"featured_media":3644,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_cat":[23],"product_tag":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.dcsabb.com\/wp-json\/wp\/v2\/product\/33856"}],"collection":[{"href":"https:\/\/www.dcsabb.com\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.dcsabb.com\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dcsabb.com\/wp-json\/wp\/v2\/comments?post=33856"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dcsabb.com\/wp-json\/wp\/v2\/media\/3644"}],"wp:attachment":[{"href":"https:\/\/www.dcsabb.com\/wp-json\/wp\/v2\/media?parent=33856"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.dcsabb.com\/wp-json\/wp\/v2\/product_cat?post=33856"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.dcsabb.com\/wp-json\/wp\/v2\/product_tag?post=33856"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}