產(chǎn)品展示
1C31233G04
點(diǎn)擊次數(shù):6發(fā)布時(shí)間:2017/2/16 15:21:27

更新日期:2017/2/16 15:21:27
所 在 地:中國(guó)大陸
產(chǎn)品型號(hào):1C31233G04
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詳細(xì)內(nèi)容
1C31233G04
1C31233G04
變頻器矢量控制的基本原理是通過(guò)測(cè)量和控制異步電動(dòng)機(jī)定子電流矢量,根據(jù)磁場(chǎng)定向原理分別對(duì)異步電動(dòng)機(jī)的勵(lì)磁電流和轉(zhuǎn)矩電流進(jìn)行控制,從而達(dá)到控制異步電動(dòng)機(jī)轉(zhuǎn)矩的目的。具體是將異步電動(dòng)機(jī)的定子電流矢量分解為產(chǎn)生磁場(chǎng)的電流分量 (勵(lì)磁電流) 和產(chǎn)生轉(zhuǎn)矩的電流分量 (轉(zhuǎn)矩電流) 分別加以控制,并同時(shí)控制兩分量間的幅值和相位,即控制定子電流矢量,所以稱這種控制方式稱為矢量控制方式。矢量控制方式又有基于轉(zhuǎn)差頻率控制的矢量控制方式、無(wú)速度傳感器矢量控制方式和有速度傳感器的矢量控制方式等。
基于轉(zhuǎn)差頻率控制的矢量控制方式同樣是在進(jìn)行U / f =恒定控制的基礎(chǔ)上,通過(guò)檢測(cè)異步電動(dòng)機(jī)的實(shí)際速度n,并得到對(duì)應(yīng)的控制頻率f,然后根據(jù)希望得到的轉(zhuǎn)矩,分別控制定子電流矢量及兩個(gè)分量間的相位,對(duì)通用變頻器的輸出頻率f進(jìn)行控制的;谵D(zhuǎn)差頻率控制的矢量控制方式的特點(diǎn)是,可以消除動(dòng)態(tài)過(guò)程中轉(zhuǎn)矩電流的波動(dòng),從而提高了通用變頻器的動(dòng)態(tài)性能。早期的矢量控制通用變頻器基本上都是采用的基于轉(zhuǎn)差頻率控制的矢量控制方式。
◆ 企業(yè)名稱:廈門泰尼電氣有限公司
◆ 主營(yíng)業(yè)務(wù):DCS,PLC
◆ 經(jīng)營(yíng)模式: 貿(mào)易
◆ 貿(mào)易地區(qū): 全國(guó)
◆ 聯(lián)系人: 小黃《女士》
◆ 電話:
◆手機(jī):18950191386
◆ QQ:2917675397
◆ 傳真: (備注“01006”收)
◆ E-mail: 2917675397@qq.com
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