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Success
Rule
1
It is important
that all students practice using
Matlab/Simulink Power System Blockset,
Spice, or PSIMDemo and simulate circuits studied during
the lectures and tutorials. Without self
studying at home it will be very difficult
to fully understand the concept of Power
Electrics Circuit operation. |
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Success
Rule
2
Students should
review their circuits analysis II notes and
practice on ac circuit analysis to be able
to succeed in solving problems. Solving
first and second order differential
equations and finding Fourier Series
Coefficients of non sinusoidal waveforms are
very common practice in this course. |
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Welcome to
the web site of
Power Electronics Course
 
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Definition |
Power electronics refers to
control and conversion of electrical power
from one form to another by power
semiconductor devices wherein these devices
operate as switches
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History |
Advent of Silicon-Controlled
Rectifiers, abbreviated as SCRs, led to the
development of a new area of application
called the power electronics. Prior to the
introduction of SCRs, mercury-arc rectifiers
were used for controlling electrical power,
but such rectifier circuits were part of
industrial electronics and the scope for
applications of mercury-arc rectifiers was
limited. |
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Applications |
Once the SCRs were available,
the application area spread to many fields
such as drives, power supplies, aviation
electronics, high frequency inverters and
power electronics originated. Power
electronics has applications that span the
whole field of electrical power systems,
with the power range of these applications
extending from a few VA/Watts to several MVA
/ MW. |
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Converters |
"Electronic power converter"
is the term that is used to refer to a power
electronic circuit that converts voltage and
current from one form to another. These
converters can be classified as:
 | Rectifier converting
an ac voltage to a dc voltage,
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| Inverter converting a
dc voltage to an ac voltage,
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| Chopper or a
switch-mode power supply that converts a
dc voltage to another dc voltage, and
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| Cycloconverter and
cycloinverter converting an ac voltage
to another ac voltage. |
| In addition, SCRs and
other power semiconductor devices are
used as static switches. |
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