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Unformatted text preview: r 2 = k V as v abcs i abcs – 1 1 2– 1 2– 1 2– 1 1 2– 1 2– 1 2– 1 p i abcs – v Cabcs – = p v Cabcs i abcs = I qs e I ds s I as v abcs 20 10 t ( 29 cos 20 10 t 2 π 3– cos 20 10 t 2 π 3+ cos = λ q L q i q = λ d L d i d λ m – = T e I qs r I ds r L asas 0.1 3 2 2 θ r ( 29 cos – + = L asbs 5) A 4pole, 3phase woundrotor synchronous machine has mH, mH, mH and neglible stator resistance. . The field winding current is set to produce rated stator voltage of 150 V (lineneutral rms) under opencircuit conditions with rad/ s. a) Determine the maximum power that can be obtained from the machine. (6 pts) b) If the qaxis damper winding is open (rather than short) circuited, determine the steadystate voltage that would be observed across the damper winding at the maximum power condition. (5 pts) L q 5 = L d 5 = L ls 1 = r fd ′ 1 = Ω ϖ r 377 =...
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 Fall '08
 Staff
 Magnetic Field, rotor, Electric Motors, SYNCHRONOUS MACHINE, cross sectional view, Cabcs

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