Lecture13

Lecture13 - Power Flow in a SM - Generator Pout = 3V I A...

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Page 1 Fundamentals of Power Systems Lecture 13 1 Power Flow in a SM - Generator 3c o s ( ) φ θ = out A PV I 3s i n ( ) = out A QV I i n ( ) = out T L I o s ( ) = out T L I Reactive power Note: θ is the phase angle between armature voltage V φ and armature current I A . It is NOT the angle between V T and I L ! Fundamentals of Power Systems Lecture 13 2 Power Equation of the SM (neglected R A ) = = out conv PP P By neglecting R A => i n ( ) δ = A S VE P X sin( ) cos( ) = A A S E I X Note: The torque angle is δ is different from the phase angle θ between armature voltage V φ and armature current I A , I.e. δ≠θ ! i n ( ) A mS X τ ω = torque angle
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Page 2 Fundamentals of Power Systems Lecture 13 3 Saturated and Unsaturated X
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Lecture13 - Power Flow in a SM - Generator Pout = 3V I A...

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