Consider the simple power system shown in Fig. Q1, where impedances are expressed in per unit on 100 MVA base. 1. Find the bus admittance matrix. 2. Express the active reactive powers at buses 2 and 3 in per units. 3. Give the type (name) of each bus."

Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter12: Power System Controls
Section: Chapter Questions
Problem 12.13P
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Problem 1:
Consider the simple power system shown in Fig. QI, where impedances are expressed
in per unit on 100 MVA base.
1. Find the bus admittance matrix.
2. Express the active reactive powers at buses 2 and 3 in per units.
3. Give the type (name) of each bus. '
1
2
0.02 + j0.04
400
MW
0.01 + j0.03
0.0125 + j0.025
250
Mvar
Slack Bus
3
V = 1.0520°
200
MW
|Va = 1.04
Fig. Q1
Transcribed Image Text:Problem 1: Consider the simple power system shown in Fig. QI, where impedances are expressed in per unit on 100 MVA base. 1. Find the bus admittance matrix. 2. Express the active reactive powers at buses 2 and 3 in per units. 3. Give the type (name) of each bus. ' 1 2 0.02 + j0.04 400 MW 0.01 + j0.03 0.0125 + j0.025 250 Mvar Slack Bus 3 V = 1.0520° 200 MW |Va = 1.04 Fig. Q1
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