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Electromechanical Energy Conversion with Dynamics of Machines

Rakosh Das Begamudre (Author)

Advances during the past two decades in use of high-powered and fast-acting solid-state devices has advanced the state of the art of motor control and excitation systems for alternators; these require the explanation of harmonic torques in motors, as well as the stability of machines. This book covers the necessary material at the undergraduate level and could serve as a terminal course in Electrical Machinery syllabus.

The book commences with magnetic-circuit calculations for devices and machines, field-plotting methods and principles of electro-mechanical energy conversion for which the magnetic fields serve as reservoirs of energy. The conversion processes are based on the application of Amperes Law of force and Faraday`s Law of e.m. induction, using D Alembert`s principle of virtual work. A great emphasis is placed on the application of Lagranges Equation, including motional e.m.f. and the Rayleigh dissipation function. The author has experienced that a firm grasp of Lagranges method is most beneficial for handling complex e.m.c. problems.

Chapters 3 through 10 cover the basic principles of operation and performance of transformers, dc machines, induction motors, synchronous machines leading to discussion of dynamics of machines in the steady state and transient state. The chapter on synchronous machines is strengthened by showing the very basic and important aspect of calculation of synchronous-machine constants which is considered novel in such a book. The student is given the idea that the flux distribution in the machine is basic to its operation in all its states of operation.

The final chapter is an introduction to Computer Aided design of machines which is gaining in importance in practice. Every chapter has many worked examples to guide the student not only in problem solving but to illustrate engineering aspects of this very important topic. Review questions, problems for self-testing and objective type questions with all answers are provided.

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Bibliographic information

Title Electromechanical Energy Conversion with Dynamics of Machines
Format Softcover
Date published: 31.12.2010
Edition 2nd ed.
Language: English
isbn 9788122411676
length 620p.,