Electrical Machines & Drives

Electrical Machines & Drives

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Containing approximately 200 problems (100 worked), the text covers a wide range of topics concerning electrical machines, placing particular emphasis upon electrical-machine drive applications. The theory is concisely reviewed and focuses on features common to all machine types. The problems are arranged in order of increasing levels of complexity and discussions of the solutions are included where appropriate to illustrate the engineering implications. This second edition includes an important new chapter on mathematical and computer simulation of machine systems and revised discussions of unbalanced operation, permanent-magnet machines and universal motors. New worked examples and tutorial problems have also been added.The circuit diagram for the 3-phase bridge configuration and the terminalvoltage waveforms are shown on Fig. ... It is possible to linearise the transfer characteristic by suitable control in the firing circuits. ... a.c. For the machine, the polarity can be reversed by changeover of armature connections; by reversal of field current, anbsp;...

Title:Electrical Machines & Drives
Author:P. Hammond
Publisher:Elsevier - 2013-10-22


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