產(chǎn)品詳情
型號

:宜春2098-DSD-075X羅克韋爾伺服驅(qū)動(dòng)器生產(chǎn)廠家
Allen Bradley 1398-DDM-009-DN
Allen Bradley 1398-DDM-005X-NV
Allen Bradley 1398-DDM-005X-DN
Allen Bradley 1398-DDM-009X
Allen Bradley 1398-DDM-019-DN
Allen Bradley 1398-DDM-009X-DN
Allen Bradley 1398-DDM-005X
Allen Bradley 1398-DDM-005-DN
Allen Bradley 1398-DDM-005
Allen Bradley 1398-DDM-075X
Allen Bradley 1398-DDM-075
Allen Bradley 1398-DDM-010X
Allen Bradley 1398-DDM-010
Allen Bradley 1398-DDM-150
Allen Bradley 1398-DDM-020X
Allen Bradley 1398-DDM-020
Allen Bradley 1398-DDM-030X
Allen Bradley 1398-DDM-030
Allen Bradley 1398-DDM-019X-DN
Allen Bradley 1398-DDM-019X
Allen Bradley 1398-DDM-150X
Allen Bradley 1398-DDM-019
Allen Bradley 1398-DDM-009


:宜春2098-DSD-075X羅克韋爾伺服驅(qū)動(dòng)器生產(chǎn)廠家下面討論三相電機(jī)的轉(zhuǎn)矩特性,由于其電流波形近似為正弦波,現(xiàn)將細(xì)分驅(qū)動(dòng)時(shí)的轉(zhuǎn)矩與兩相電機(jī)比較來看。如增加細(xì)分的細(xì)分?jǐn)?shù),電流波形能近似正弦波,磁通的高次諧波的影響更明顯。兩相電機(jī)細(xì)分時(shí)的轉(zhuǎn)矩磁通是不含高次諧波的正弦波,如式前一篇中的T2=IΦsinδ所示。下圖是對其磁通含三次諧波時(shí)的細(xì)分兩相電機(jī)與三相電機(jī)轉(zhuǎn)矩進(jìn)行比較。三相電機(jī)的各相轉(zhuǎn)矩與兩相電機(jī)的曲線相同,用下圖式1表示。交鏈磁通能用基波與奇數(shù)次高次諧波之和表示(偶數(shù)次的高次諧波與線圈交鏈時(shí)會抵消,不會變成交鏈磁通),基波與三次諧波之和如下圖所示。


