變頻調(diào)速三相異步電動機恒轉(zhuǎn)矩及恒功率特性的控制(精)-文庫吧
2025-06-11 10:44 本頁面
【正文】 uency(lessthan50Hz)andtheconstantoutputcharacteristicsathighfrequency(over50Hz)invariable??frequencyadjustable??speedthree??phaseinductionmotors.Keywords??Variable??frequencyadjustable??speed,Constanttorquecharacteristic,Con??stantoutputcharacteristic,Control.E1=4??44f1N1??mKw1在忽略定子阻抗壓降的情況下,有U1??E1=4??44f1N1??mKw1??f1??m(1)1??引言隨著我國工業(yè)自動化程度的提高,對電動機的調(diào)速性能的要求大大提高,而變頻調(diào)速電機具有效率高、調(diào)速范圍廣、精度高、調(diào)速平滑等優(yōu)點,是異步電動機較理想的調(diào)速方法。本文對交流三相異步電動機變頻調(diào)速中的恒轉(zhuǎn)矩及恒功率特性的控制進
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