稀土永磁同步電動機供應應用越發廣(guang)泛，包括艦(jian)艇(ting)及(ji)潛(qian)艇(ting)用永(yong)(yong)磁電(dian)機、坦克及(ji)裝甲車驅(qu)(qu)動(dong)用永(yong)(yong)磁電(dian)機、船用推進器永(yong)(yong)磁電(dian)機、航(hang)天用驅(qu)(qu)動(dong)永(yong)(yong)磁電(dian)機

可(ke)實現按需調節，降低無效能耗

電(dian)機(ji)低負荷運(yun)行(xing)(xing)時，揚程和(he)流量都有較大余量問題，采(cai)用(yong)變(bian)頻調(diao)速(su)，可以根據實(shi)際的揚程和(he)流量需(xu)求匹配電(dian)機(ji)的轉速(su)和(he)運(yun)行(xing)(xing)數(shu)量，使機(ji)組實(shi)時高(gao)效運(yun)行(xing)(xing)，降低無(wu)效能耗(hao)。

稀土永磁同步電動機供應特點

1、稀土永(yong)磁(ci)同步電動機無滑(hua)差，轉子上無基波鐵、銅耗。

2、稀土(tu)永磁(ci)同步電動機(ji)為雙邊勵磁(ci)，且主要(yao)是轉子永磁(ci)體(ti)勵磁(ci)，其功(gong)率因(yin)數可達(da)到或接近于1.0。

3、功率(lv)因數的(de)提高(gao)，一(yi)方(fang)(fang)面節約了無功功率(lv)，另一(yi)方(fang)(fang)面也使(shi)定子(zi)電流下(xia)降(jiang)，定子(zi)銅耗減少(shao)，效率(lv)提高(gao)。

稀(xi)土(tu)永(yong)(yong)磁(ci)(ci)同(tong)步(bu)(bu)電動(dong)機(ji)的極弧(hu)系(xi)數(shu)一般(ban)均(jun)大(da)于(yu)異步(bu)(bu)電動(dong)機(ji)的極弧(hu)系(xi)數(shu)，當(dang)電源電壓和(he)定(ding)(ding)子結構一定(ding)(ding)時，稀(xi)土(tu)永(yong)(yong)磁(ci)(ci)同(tong)步(bu)(bu)電動(dong)機(ji)的平均(jun)磁(ci)(ci)感應(ying)強度較異步(bu)(bu)機(ji)小，鐵損耗(hao)小。

4、至于稀土永(yong)磁(ci)(ci)同(tong)步電動機的雜散(san)損耗(hao)，一(yi)般認為由于其永(yong)磁(ci)(ci)體磁(ci)(ci)場(chang)的非(fei)正(zheng)弦性而增加了雜散(san)損耗(hao)，但另一(yi)方面稀土永(yong)磁(ci)(ci)電動機較大的氣隙，降低(di)了雜散(san)損耗(hao)。

5、稀土(tu)(tu)永磁(ci)同步(bu)(bu)電(dian)(dian)動(dong)機(ji)(ji)(ji)的不(bu)變(bian)損(sun)耗(hao)(hao)（鐵耗(hao)(hao)+機(ji)(ji)(ji)械損(sun)耗(hao)(hao)）小，可變(bian)損(sun)耗(hao)(hao)（定(ding)子(zi)(zi)銅(tong)(tong)耗(hao)(hao)）變(bian)化比(bi)異步(bu)(bu)電(dian)(dian)動(dong)機(ji)(ji)(ji)可變(bian)損(sun)耗(hao)(hao)（定(ding)子(zi)(zi)銅(tong)(tong)耗(hao)(hao)+轉子(zi)(zi)銅(tong)(tong)耗(hao)(hao)）變(bian)化慢，使其效(xiao)率特(te)性(xing)有高(gao)而(er)平的特(te)點(dian)，使稀土(tu)(tu)永磁(ci)電(dian)(dian)動(dong)機(ji)(ji)(ji)在(zai)輕載(zai)(zai)時的相(xiang)(xiang)當寬的區域(yu)內(nei)效(xiao)率為最(zui)高(gao)。如在(zai)油(you)田(tian)采(cai)油(you)機(ji)(ji)(ji)上使用，這一(yi)區域(yu)恰好與油(you)田(tian)采(cai)油(you)機(ji)(ji)(ji)的平均負載(zai)(zai)所(suo)在(zai)區域(yu)相(xiang)(xiang)吻合。為此(ci)，稀土(tu)(tu)永磁(ci)同步(bu)(bu)電(dian)(dian)動(dong)機(ji)(ji)(ji)的額(e)定(ding)效(xiao)率比(bi)異步(bu)(bu)電(dian)(dian)動(dong)機(ji)(ji)(ji)高(gao)4%-7%，但(dan)在(zai)整個負載(zai)(zai)變(bian)化范圍內(nei)的平均效(xiao)率，稀土(tu)(tu)永磁(ci)同步(bu)(bu)電(dian)(dian)動(dong)機(ji)(ji)(ji)比(bi)三相(xiang)(xiang)異步(bu)(bu)電(dian)(dian)動(dong)機(ji)(ji)(ji)可高(gao)出12%。

6、采用(yong)稀土永磁同步(bu)電動機，無功功率(lv)節電率(lv)可達(da)85%；有功功率(lv)節電率(lv)可達(da)23%-25%，節電效(xiao)果十分明顯。

應用

交流永磁同步(bu)電(dian)動(dong)機由于(yu)其體積小(xiao)、重量(liang)輕(qing)、高效節能(neng)等一(yi)系(xi)列優點(dian)，越來越引起人們重視，其控制(zhi)技術(shu)日趨(qu)成熟(shu)，控制(zhi)器已產品化。中小(xiao)功率的(de)(de)(de)異步(bu)電(dian)動(dong)機變頻調(diao)(diao)速(su)(su)正(zheng)逐步(bu)為永磁同步(bu)電(dian)動(dong)機調(diao)(diao)速(su)(su)系(xi)統(tong)(tong)所取(qu)代。電(dian)梯驅(qu)動(dong)就是一(yi)個典型的(de)(de)(de)例子(zi)。電(dian)梯的(de)(de)(de)驅(qu)動(dong)系(xi)統(tong)(tong)對電(dian)機的(de)(de)(de)加(jia)速(su)(su)、穩速(su)(su)、制(zhi)動(dong)、定位都有一(yi)定的(de)(de)(de)要求。早期人們采用直流電(dian)動(dong)機調(diao)(diao)速(su)(su)系(xi)統(tong)(tong)，其缺點(dian)是不言而喻的(de)(de)(de)。

70年代變頻技術發(fa)展成熟，異步電(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)的(de)(de)(de)變頻調(diao)速驅動(dong)迅速取代了電(dian)(dian)(dian)(dian)(dian)梯行業(ye)中(zhong)的(de)(de)(de)直(zhi)流(liu)調(diao)速系(xi)統(tong)。而這幾年電(dian)(dian)(dian)(dian)(dian)梯行業(ye)中(zhong)最新驅動(dong)技術就(jiu)是(shi)永磁(ci)同(tong)步電(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)調(diao)速系(xi)統(tong)，其體積(ji)小(xiao)、節能、控制性(xing)能好、又容(rong)易做成低(di)(di)速直(zhi)接(jie)驅動(dong)，消除(chu)齒(chi)輪減速裝置；其低(di)(di)噪聲(sheng)、平層精度和舒適性(xing)都優于以(yi)前(qian)的(de)(de)(de)驅動(dong)系(xi)統(tong)，適合(he)在(zai)無機(ji)房(fang)電(dian)(dian)(dian)(dian)(dian)梯中(zhong)使用。永磁(ci)同(tong)步電(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)驅動(dong)系(xi)統(tong)很快(kuai)得到各大電(dian)(dian)(dian)(dian)(dian)梯公司青睞，與其配套的(de)(de)(de)專用變頻器系(xi)列產品已有(you)多種牌號上市。可(ke)以(yi)預見，在(zai)調(diao)速驅動(dong)的(de)(de)(de)場合(he)，將會(hui)是(shi)永磁(ci)同(tong)步電(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)的(de)(de)(de)天下(xia)。