机电传动控制-大作业汇.doc

《机电传动控制》大作业（3小时） 一、有一生产机械的实际负载转矩曲线如图一所示，生产机械要求的转速nN＝1450r/min，ηc=0.92。 1.试选一台容量合适的交流电动机来拖动此生产机械。（10分） 2.假设该电机采用反馈/反接/能耗制动，设计其制动控制电路原理图，并绘制机械特性图说明其制动过程（15分）。 图一 负载图 表1 Y2系列电机型号表 型号额定功率额定转速r/min额定电流A满载时起动电流 额定电流起动转矩 额定转矩最大转矩 额定转矩噪声(LW)dB(A)振动mm/s重量 kgkWHP效率η%功率因数cosφ空载负载Y2-711-20.371/227600.99700.816.12.22.264661.8-Y2-712-20.553/427901.4730.826.12.22.364661.8-Y2-801-20.75128451.8750.836.12.22.367691.818Y2-802-21.11.528402.5770.847.02.22.367691.820Y2-90S-21.5228403.4790.8472.22.372741.820Y2-90L-22.2328404.9810.8572.22.372741.823Y2-100L-23428606.3830.877.52.22.376781.832Y2-112M-245.528808.2850.887.52.22.377791.837Y2-132S1-25.57.5290011.2860.887.52.22.380821.857Y2-132S2-27.510290015.1870.887.52.22.380821.860Y2-712-40.371/213451.1670.755.22.12.255601.8-Y2-801-40.553/413901.6710.755.22.42.358631.814Y2-802-40.75113802.0730.7662.32.358631.815Y2-90S-41.11.513902.9750.7762.32.361661.819Y2-90L-41.5213903.7780.7962.32.361661.823Y2-100L1-42.2314105.2800.8172.32.364691.832Y2-100L2-43414106.8820.8272.32.364691.835Y2=112M-445.514358.8840.8272.32.365701.841Y2-132S-45.57.5144011.8850.8372.32.371761.860Y2-132M-47.510144015.6870.8472.32.371761.872Y2-801-60.371/28851.3620.74.71.92.054611.814Y2-802-60.553/48851.8650.724.71.92.154611.817Y2-90S-60.7519102.3690.725.52.02.157641.820Y2-90L-61.11.59103.2720.735.52.02.157641.820Y2-100L-61.529204.0760.755.52.02.161681.831Y2-112M-62.239355.6790.766.52.02.165721.837Y2-132S-6349607.4810.766.52.12.169761.854Y2-132M1-645.59609.6820.766.52.12.169761.864Y2-132M2-65.57.596012.9840.776.52.12.169761.8