ELE 747 Lecture Notes - Lecture 3: Simulink, Kcnd3, Rectifier
9 Apr 2016
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Midterm friday march 2, eng102: closed book, four questions. Q1 (30%) - dc motor modeling (cid:131) simulink model (cid:131) transfer function. Q2 (25%) - diode/scr rectifiers (cid:131) simulink model (cid:131) waveforms. Q3 (25%) - reference frame theory (cid:131) transformation between 3 and 2 and between different reference frames. Q4 (20%) - dc motor speed control with current and speed feedback (cid:131) a number of small questions and/or (cid:131) multiple choice. 1. 14 dc motor speed control (open loop control: circuit diagram ai ar. Input variable dcv - output variable anv , bnv , cnv - fixed magnitude and frequency (constant) dcv , = 2. 34 avg anv. Cos dcv , avg rmsv34. 2 rmsv34. 2 : linearization o90 o. 1: how to adjust motor speed, main features. T e r (1) simple control (2) r can be continuosly adjusted by adjusting r is not detected/controlled r changes with lt. However, this is an open loop control system.
