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Unformatted text preview: Power Flow in a SM  Generator Pout 3V I A cos( ) Pout Reactive Qout
power Note: is the phase angle
between armature voltage V and
armature current IA. It is NOT the
angle between VT and IL! Qout 3 VT I L cos( ) 3V I A sin( )
3 VT I L sin( ) Lecture 13 Fundamentals of Power Systems 1 Power Equation of the SM (neglected RA)
By neglecting RA => Pout Pconv P torque angle P 3V E A sin( )
XS E A sin( )
XS 3V E A sin( ) Note: The torque angle is is
different from the phase angle
between armature voltage V and
!
armature current IA, I.e.
Fundamentals of Power Systems I A cos( ) m
Lecture 13 Page 1 XS
2 Saturated and Unsaturated XS
VT = EA for con.
VT = 3EA for Ycon. Unsaturated XS EA ( I F )
I A (I F ) Saturated Fundamentals of Power Systems Lecture 13 3 Examples 51, 52, 53 (book) Fundamentals of Power Systems Lecture 13 Page 2 4 HW 7
Problems 51, 52, 515 in book plus one additional
problem, see posting on website!
http://www.eng.fsu.edu/~steurer/eel3216.html
Due 10252005 4pm
For consistency of book problem statement always
consult web site! Fundamentals of Power Systems Lecture 13 Page 3 5 ...
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This note was uploaded on 02/01/2012 for the course EEL 3216 taught by Professor Brooks during the Spring '08 term at FSU.
 Spring '08
 BROOKS
 Volt

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