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maur iacute cio j electromechanical energy conversion 2020

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Textbook in PDF format Preface. Acknowledgments. Author biographies. Jose Roberto Cardoso. Mauricio Barbosa de Camargo Salles. Mauricio Caldora Costa. The magnetic circuit. Some magnetic properties of the material. The basis for the linear magnetic circuit. The real world. Air-gap in a magnetic structure. Axisymmetric geometry. The permanent magnet. The inductance. Summary. Problems. Project. Further reading. The non-linear magnetic circuit. Some magnetic properties of ferromagnetic materials. Solving a non-linear magnetic circuit. The Kirchhoff law approach. The magnetization curves. Mapping the magnetic circuit. Numerical method: the finite element method. Summary. Problems. Further reading. Transformers. Introduction. The ideal transformer. Conventions. The electromotive force relation. The voltage relation. The electric current relation. The electric power relation. The transformer under load. A non-ideal linear transformer. The leakage inductances. The magnetization inductance. The sinusoidal steady-state—the AC system. The induced electromotive force. Approximate equivalent electric circuit. The rated values of a transformer. The real transformer. Constructive aspects. The iron losses. Considering the iron loss in the equivalent electric circuit. Obtaining parameters from tests. Efficiency. Voltage regulation. The phasor diagrams. Summary. Transformer design guidelines: a project-based learning approach. Problems. Further reading. The elementary electromechanical energy conversion. Introduction. The electromotive force in a straight conductor. The magnetic force in a straight conductor. Steady state × transient analysis. The elementary DC machine. The harmonic steady state. The rotating electrical machine fundamentals. The Faraday disc. The axisymmetric symmetry. Summary. Project. Problems. Further reading. The flow of electromechanical energy. Introduction. The variation of the energy stored in magnetic field. The variation of the energy supplied by the electrical source. The variation of the electromechanical energy. The co-energy. The average developed electromechanical force. Electromechanical devices with permanent magnet. Summary. Project of magnetic crane with a PM. Problems. Further reading. Electromechanical forces and torques. Introduction. The evaluation of energies from lumped parameters. The simply excited electromechanical device. First case: DC constant current operation. A little bit of the transient analysis. Second case: the constant flux operation. The translational magnetic system under constant magnetic flux operation. The shading coil. The rotational magnetic system under constant magnetic flux operation. Imposing rotor angular speed. Summary. Project: design of a rotational magnetic system. Problems. Further reading. Multiply excited electromechanical systems. Introduction. Flux linkages in multiple excitation. The double-excited rotational magnetic system. First case. Second case. Third case. Rotor with a salient pole. Summary. Problems. Further reading. Synchronous machine: the windings. Design aspects of a synchronous machine. How a synchronous machines works. The magnetic flux density distribution by the armature winding. The AC distributed winding. The fractional pitch winding. Winding for more than two magnetic poles. The electrical angle. The triphasic winding. The magnetic flux density distribution of a -phase winding. Physical analysis of Bg(θ,t). The induced electromotive force—emf. The synchronous reactance. The rotor winding. The field winding of a non-salient pole machine. The field winding of a salient pole machine. The effect of the rotor winding in the SM operation. Summary. Project. Problems. Further reading. Synchronous machine: operation. Introduction. No-load operation. On-load operation. The rated quantities of synchronous generator. Drawing the phasor diagram. Power and torques. The voltage regulation. Motor operation. Properties of synchronous motor phasor diagram. ‘V’ curves. Summary. Project. Problems. Further reading. CHpdf. Asynchronous machine: operation. Introduction. Design aspects of an asynchronous machine. How the asynchronous machine works. The energy balance for induction motors. The generator operation. The break operation. Frequency converter operation. The torque speed characteristics. First case ( 0< n < ns): Second case (n > ns): Third case (n < 0): Series rheostat. The acceleration of the induction motor. Speed control of the induction motor. The single-phase induction motor. The shade-pole induction motor. Summary. Project. Problems. Further reading. Special electrical machines. DC motor. Design aspects of a DC machine. How a DC machines works. The induced electromotive force. The rotor speed equation. Operation under constant field current. Operating under constant voltage. The developed torque. Configurations of the DC motor. Switched reluctance motor. Design aspects of the switched reluctance motor. How switched reluctance motor works. The torque production. Stepper motor. The elemental stepper motor. The hybrid stepper motor—digital motor. How the hybrid stepper motor works. Brushless DC motor. Small BLDC motor. Integral BLDC motor. The multiphase BLDC motor. Synchronous reluctance motor. Design aspects of synchronous reluctance motor. How the SyRM works. PM synchronous reluctance motor. Linear induction motor. Summary. Project. Further reading

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Maurício J. Electromechanical Energy Conversion...2020.pdf 33.4 MB

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maur iacute cio j electromechanical energy conversion 2020

Details for: Maurício J. Electromechanical Energy Conversion...2020