描述

無(wú)感測(cè)器控制

設(shè)計(jì)人員需要轉(zhuǎn)子的位置資訊，才能高效地控制永磁同步馬達(dá)，然而在一些應(yīng)用中于傳動(dòng)軸上安裝轉(zhuǎn)子位置感測(cè)器，會(huì)降低整個(gè)系統(tǒng)的耐用性和可靠性。因此，設(shè)計(jì)人員的目標(biāo)不是使用這個(gè)機(jī)械感測(cè)器直接測(cè)量位置，而是利用一些間接的技術(shù)估算轉(zhuǎn)子位置。

低速時(shí)，須高頻率注入或開(kāi)環(huán)啟動(dòng)(效率不高)等特殊技術(shù)來(lái)啟動(dòng)馬達(dá)并使之達(dá)到某一個(gè)轉(zhuǎn)速，在這個(gè)轉(zhuǎn)速下對(duì)于反電動(dòng)勢(shì)觀測(cè)器來(lái)說(shuō)，反電動(dòng)勢(shì)已足夠。通常，5%的基本速度足以使無(wú)感測(cè)器模式正常運(yùn)行。

中/高速時(shí)，使用d/q參照系中的反電動(dòng)勢(shì)觀測(cè)器。內(nèi)部脈寬調(diào)變(PWM)頻率和控制環(huán)路頻率必需夠高，才能獲得合理數(shù)量的相電流和直流母線電壓的樣本。反電動(dòng)勢(shì)觀測(cè)器的計(jì)算要求乘累加、除法、正弦/余弦(sin/cos)、開(kāi)方等數(shù)學(xué)計(jì)算，適合使用基于安謀國(guó)際(ARM)內(nèi)核的KinetisMCU或PowerArchitecture系列的數(shù)位訊號(hào)控制器(DSC)。

產(chǎn)品廣泛應(yīng)用于：電力、石油、礦井提升、港口、供熱、燃?xì)狻⒐┧?、污水處理、冶金、造紙、紡織、化工、水利等現(xiàn)代化工業(yè)領(lǐng)域！

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主營(yíng)：世界知名品牌的PLC、DCS系統(tǒng)備件模塊

①Allen-Bradley(美國(guó)AB)系列產(chǎn)品》

②Schneider(施耐德電氣)系列產(chǎn)品》

③General electric(通用電氣)系列產(chǎn)品》

④Westinghouse（美國(guó)西屋）系列產(chǎn)品》

⑤SIEMENS(西門子系列產(chǎn)品)》

⑥銷售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。

⑦estinghouse（西屋）：OVATION系統(tǒng)、WDPF系統(tǒng)、MAX1000系統(tǒng)備件。

⑧Invensys Foxboro（?？怂共_）：I/A Series系統(tǒng)，F(xiàn)BM（現(xiàn)場(chǎng)輸入/輸出模塊）

順序控制、梯形邏輯控制、事故追憶處理、數(shù)模轉(zhuǎn)換、輸入/輸出信號(hào)處理、數(shù)

據(jù)通信及處理等。Invensys Triconex:冗余容錯(cuò)控制系統(tǒng)、基于三重模件冗余（TMR）

結(jié)構(gòu)的zui現(xiàn)代化的容錯(cuò)控制器。

⑨Siemens(西門子)：Siemens MOORE，Siemens Simatic C1，Siemens數(shù)控系統(tǒng)等。

⑩Bosch Rexroth（博世力士樂(lè)）：Indramat，I/O模塊,PLC控制器,驅(qū)動(dòng)模塊等。

◆Motorola（摩托羅拉）：MVME 162、MVME 167、MVME1772、MVME177等系列。

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