1756-L63
1756-l63S
1756-l63XT
1756-l64
1756-L65
小戴:18006003561(0592-5072089) 傳真:0592-5072083 QQ:1794427603
無(wú)刷直流電動(dòng)機(jī)(BLDCM),用裝有永磁體的轉(zhuǎn)子取代有刷直流電動(dòng)機(jī)的定子磁極,
將原直流電動(dòng)機(jī)的電樞變?yōu)槎ㄗ印?
有刷直流電動(dòng)機(jī)是依靠機(jī)械換向器將直流電流轉(zhuǎn)換為近似梯形波的交流電流供給電樞繞組,
而無(wú)刷直流電動(dòng)機(jī)(BLDCM)是將方波電流(實(shí)際上也是梯形波)直接輸入定子。
將有刷直流電動(dòng)機(jī)的定子和轉(zhuǎn)子顛倒一下,并采用永磁轉(zhuǎn)子,就可以省去機(jī)械換向器和電刷,
由此得名無(wú)刷直流電動(dòng)機(jī)。BLDCM定子每相感應(yīng)電動(dòng)勢(shì)為梯形波,為了產(chǎn)生恒定的電磁轉(zhuǎn)矩,
要求功率逆變器向BLDCM定子輸入三相對(duì)稱方波電流,
而SPWM、PM、SM定子每相感應(yīng)電動(dòng)勢(shì)為近似正弦波,需要向SPWM、PM、SM定子輸入三相對(duì)稱正弦波電流。
小戴:18006003561(0592-5072089) 傳真:0592-5072083 QQ:1794427603
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