Large A.C. Machines: Theory and Investigation Methods of Currents and Losses in Stator and Rotor Meshes Including Operation with Nonlinear Loads

Front Matter....Pages i-xxvii
Problems Formulation....Pages 1-11
Investigation Methods of Performance Characteristics for Double-Fed Machines with Converter in Rotor Circuit. Summary of Main Investigation Stages of A.C. Machines....Pages 13-35
Stator MMF Harmonics at Non-sinusoidal Machine Power Supply (for M ≥ 1, Q ≥ 1)....Pages 37-59
Peculiarities of Currents Investigation in Magnetically Coupled Circuits for A.C. Machines with Short-Circuited Rotor Windings....Pages 61-97
Representation of Currents in Rotor Short-Circuited Winding Elements in the Form of Generalized Characteristics....Pages 99-113
Passive Quadripoles; Recurrent Circuits of Various Structure: Investigation of Their Peculiarities for Modeling Process of Currents Distribution in Short-Circuited Rotor Windings....Pages 115-138
Active Symmetrical and Asymmetrical Chain Circuits: Investigation of Their Peculiarities for Modeling Process of Currents Distribution in Short-Circuited Rotor Windings....Pages 139-163
EMF Induced by Resulting Field in Short-Circuited Loops of Damper Winding and Squirrel Cage....Pages 165-178
Investigation Methods of Currents Distribution in Regular Damper Windings and Squirrel Cages....Pages 179-202
Investigation Methods of Currents Distribution in Squirrel Cages with Asymmetry....Pages 203-217
Investigation Methods of Currents Distribution in Irregular Damper Windings....Pages 219-237
MMF of Damper Winding, Squirrel Cage (at Asymmetry in Them or at Its Absence) and Excitation Winding. Representation of MMF in the Form of Harmonic Series in Complex Plane....Pages 239-269
Field Harmonics in Air Gap of A.C. Machine in Nonlinear Network....Pages 271-293
System of Equations for Magnetically Coupled Loops for A.C. Machine in Nonlinear Network....Pages 295-310
Peculiarities of Operation Modes of A.C. Machine with Short-Circuited Rotor Windings at Nonsinusoidal Power Supply....Pages 311-316
Operation Problems of High-Power AC Machines in Nonlinear Network....Pages 317-347
Frequency-Controlled Induction Motors in Nonlinear Networks: Assessment Criteria of Higher Harmonics Influence—Method of Criteria Calculation....Pages 349-361
Method of Minimizing Losses in High-Power Low-Speed Frequency-Controlled Motors in Operation Modes at Nonlinear Dependence of Shaft Torque on Rotation Speed....Pages 363-369
Methods of Decreasing Nonlinear Distortion Factor in Voltage Curve of Salient-Pole Generator: Investigation of EMF Tooth Harmonics of Its Multiphase Winding with q per Pole and Phase as Integer....Pages 371-390
Methods of Decreasing Nonlinear Distortion Factor in Voltage Curve of Double-Fed Machines: Investigation of EMF Tooth Harmonics of Its Multiphase Stator and Rotor Windings with q Per Pole and Phase as Integer....Pages 391-410
Method of Determination Stator Winding MMF at Arbitrary Phase Current Waveform and Unequal Width of Phase Zones (for Investigation of Operational Characteristics of Frequency: Controlled Motors)....Pages 411-432
Investigation Method of Transient Modes in Induction Machines with Rotor Cage Asymmetry....Pages 433-451
Theory and Methods of Investigation of Eddy Currents and Additional Losses in Stator Windings....Pages 453-550