ELE 747 Lecture Notes - Lecture 12: Flux Linkage, Ds 4, Induction Motor
9 Apr 2016
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Ele847 week 12 (two hour lecture is canceled due to thesis defense) Topic 5 synchronous machines: general aspects, more than 90% of electric power in the world is generated by synchronous machines, typical ratings. 700mva, 20kv for a single generator: construction (see handout, stator the same as the induction motor, rotor 4 rotor windings (cid:131) (cid:131) (cid:131) (cid:131) df , "dk - damper winding 3: functions of the damper winding. To improve dynamic performance of synch. machines: to damp mechanical oscillations, to enhance system stability, commonly used synch. Generator model o qsv o o dsv o. Current flows out for synch. generator! qsi sr r ds lsl mqi mql qsp . Current flows out! dsi sr r qs lsl dsp mdi mdl lkdl kdv kdp lfdl fdp d-axis fdr fdi fdv. Leakage inductances of r - rotor speed mdl , mql - dq-axis magnetizing inductances. 1kqr windings. kqr , lkql lfdl - leakage inductances of.
