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Modern Permanent Magnet Electric Machines - Theory and Control (Hardcover)
Loot Price: R3,206
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Modern Permanent Magnet Electric Machines - Theory and Control (Hardcover)
Expected to ship within 12 - 17 working days
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The late 1980s saw the beginning of the PM brushless machine era,
with the invention of high-energy density permanent magnets (PM)
and the development of power electronics. Although induction motors
are now the most popular electric motors, the impact of PM
brushless machines on electromechanical drives is significant.
Today, PM machines come second to induction machines. Replacement
of electromagnetic field excitation systems by PMs brings the
following benefits: No electrical energy is absorbed by the field
excitation system and thus there are no excitation losses, causing
substantial increase in efficiency Higher power density (kW/kg)
and/or torque density (Nm/kg) than electromagnetic excitation
Better dynamic performance than motors with electromagnetic
excitation (higher magnetic flux density in the air gap)
Simplification of construction and maintenance Less expensive for
some types of machines Modern Permanent Magnet Electric Machines:
Theory and Control serves as a textbook for undergraduate power
engineering students who want to supplement and expand their
knowledge in the fundamentals of magnetism, soft magnetic
materials, permanent magnets (PMs), calculation of magnetic
circuits with PMs, modern PM brushed DC machines and their
controls, modern PM brushless DC motors and drive control, and
modern PM generators. The book can help students learn more about
electrical machines and can serve as a prescribed text for teaching
elective undergraduate courses such as modern permanent magnet
electrical machines. Since the book is written in a simple
scientific language and without redundant mathematics, it can also
be used by practicing engineers and managers employed in electrical
machinery or electromagnetic device industries.
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