December 2012
Beginner
528 pages
17h 31m
English
Content preview from Introduction to Electrical Power and Power Electronics
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456 Introduction to Electrical Power and Power Electronics
Solution:
As generally practiced by power engineers, we tune the harmonic filter at 5%
lower than the harmonic frequency, that is, f
h
= 0.95 × 11 × 60 = 627 Hz for the
11th harmonic. Then using Equation 16.23, we get
L
11
2
2
1000 4 160 60
100 2 627
0 0042=
××
××
=
.
.
π
Hor4.2 mH//pha
se
.
16.5.2 very Clean Power BUs
High-power electronics converters switching on and off high currents produce
high harmonic distortion on the bus that can adversely impact the performance of
harmonic-sensitive loads, such as science instruments, computers in data centers,
navigation instruments and radar on ships, etc ...
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