Modern Permanent Magnet Electric Machines: Theory and Control

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. 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.

Format: Hardback
Length: 295 pages
Publication date: 05 December 2022
Publisher: Taylor & Francis Ltd

The late 1980s marked the dawn of the PM brushless machine era, heralded by the invention of high-energy density permanent magnets (PM) and the advancement of power electronics. While induction motors currently reign as the most widely used electric motors, the profound influence of PM brushless machines on electromechanical drives cannot be overstated. In contemporary times, PM machines hold a notable second position, trailing only induction machines in popularity. The replacement of electromagnetic field excitation systems with PMs offers a multitude of advantages. Firstly, there are no electrical energy losses incurred by the field excitation system, resulting in a substantial increase in efficiency. Secondly, PM machines exhibit higher power density (kW/kg) and/or torque density (Nm/kg) compared to their electromagnetic counterparts. This enhanced performance is attributed to the higher magnetic flux density in the air gap, leading to improved dynamic characteristics. Furthermore, the simplification of construction and maintenance processes is a notable benefit, as is the potential for reduced costs in certain machine types.

In the realm of modern permanent magnet electric machines, Modern Permanent Magnet Electric Machines: Theory and Control serves as an invaluable textbook for undergraduate power engineering students seeking to augment and broaden their understanding of fundamental magnetism, soft magnetic materials, permanent magnets (PMs), the 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. This comprehensive resource can aid students in delving deeper into the realm of electrical machines and serves as a prescribed text for teaching elective undergraduate courses such as modern permanent magnet electrical machines. Moreover, the book's straightforward scientific language and absence of excessive mathematics make it accessible to practicing engineers and managers working in the electrical machinery or electromagnetic device industries.

Weight: 730g
Dimension: 234 x 156 (mm)
ISBN-13: 9780367610586