Special Assignment #3 ECE 350: Electric Power and Machi

Special Assignment #3 ECE 350: Electric Power and Machines A three-phase 60 Hz 8 pole 40 MVA 14 kV synchronous generator has negligible armature resistance. Test data for the generator is presented graphically below and curve fit expressions for occ and scc have been provided. The rotational losses of the generator are 2 MW. ?????? ?? 7???? ???????????? ?? 21300???? 430 ?? ???? Use any computational resources at your disposal to determine the true operating point (required field current) of the machine if it is supplying a 35 MW load at 0.97 pf lagging and 13.8 kV. You should employ an iterative solution and you should submit sufficient work and documentation of your code or other form of solution methodology that your solution may be adequately validated. DUE: Tuesday April 22 2013 0 25 50 75 100 125 150 175 200 225 250 275 300 325 350 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.91 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.92 x 104 Field Amps OC Line Volts 0200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000 3200 3400 3600 3800 4000 SC Amps occ scc
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