描述

減少發(fā)熱，就是減少銅損和鐵損。 減少銅損有兩個(gè)方向，減少電阻和電流，這就要求在選型時(shí)盡量選擇電阻小和額定電流小的電機(jī)，對(duì)兩相電機(jī)，能用串聯(lián)的電機(jī)就不用并聯(lián)電機(jī)。但是這往往與力矩和高速的要求相抵觸。對(duì)于已經(jīng)選定的電機(jī)，則應(yīng)充分利用驅(qū)動(dòng)器的自動(dòng)半流控制功能和脫機(jī)功能，前者在電機(jī)處于靜態(tài)時(shí)自動(dòng)減少電流，后者干脆將電流切斷。另外，細(xì)分驅(qū)動(dòng)器由于電流波形接近正弦，諧波少，電機(jī)發(fā)熱也會(huì)較少。 減少鐵損的辦法不多，電壓等級(jí)與之有關(guān)，高壓驅(qū)動(dòng)的電機(jī)雖然會(huì)帶來(lái)高速特性的提升，但也帶來(lái)發(fā)熱的增加。所以應(yīng)當(dāng)選擇合適的驅(qū)動(dòng)電壓等級(jí)，兼顧高速性，平穩(wěn)性和發(fā)熱，噪音等指標(biāo)。

主營(yíng)：本特利，英維思，伍德沃德，?？怂共_、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門子、摩托羅拉、GE發(fā)那科、安川、博世力士樂(lè)，ACSO，

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