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EE 154 Final Exam

Problem:  The system shown in Figure below has two generators (gen 2 is an

infnite bus, so: V2 = 1cis0) and three nodes !enerator and transmission line

data are gi"en below

!1: # $%&hase 'ault occurs near bus 2 and is cleared 01 sec by remo"ing line

!2: # $%&hase 'ault occurs near bus 2 and is cleared 02 sec by remo"ing line

!$: # $%&hase 'ault occurs near bus 1 and is cleared 0$ sec by remo"ing line $

!: # $%&hase 'ault occurs near bus 1 and is cleared 0 sec by remo"ing line *

!: # + near bus 2 (-ine ) was o&ened and was closed 0 sec a'ter

!*: # + near bus 2 (line ) was o&ened and was closed 0* sec a'ter

!.: # + near bus 1 (line $) was o&ened and was closed 0. sec a'ter

!/: # + near bus 1 (line *) was o&ened and was closed 0/ sec a'ter

(a) er'orm all &reliminary calculations 'or a stability study +on"ert the

system to a common 100 V# base and calculate the generator internal

"oltage and initial &ower angle(b) btain time solution 'or the &ower angle and determine i' the system is

stable(c) 3rite the swing e4uation 'or the 'aulted networ5 and 'or the networ5 a'ter

the 'ault is cleared(d) #&&ly (i) e4ual area criterion, (ii) numerical solution, (iii) &ower world

simulator to the 'ault and determine the critical clearing angle and critical

clearing time

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Groupings:

!1: 6 - adelles and +om&any

!2: 7 ! 7ombilon and +om&any

!$: 7o5hair 7am&aco and +om&any

!: #aron +arino and +om&any

!: enedicto aragoya and +om&any

!*: 8arwin ichael olano and +om&any

!.: 9athaniel +ortes and +om&any

!/: car5 -umactod and +om&any