Synchronous and Brushless Permanent Magnet Machines and Drives
1. Introduction
Chapters 6 to 8 have described the virtues of the induction motor and how, when combined with power electronic control, it is capable of meeting the performance and efficiency requirements of many of the most demanding applications. In this chapter another group of a.c. motors is described. In all of them the electrical power that is converted to mechanical power is fed into the stator, so, as with the induction motor, there are no sliding contacts in the main power circuits. All also have stators that are identical (or very similar) to the induction motor, although some new constructional and winding techniques involving segmented construction are being ...
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