Course Details
Contents
Review and Introduction: Static magnetic fields – Coupled linear magnetic circuits – Modeling simple linear motion electromechanical systems – Cylindrical motion electromechanical systems – Multiply excited electromechanical systems – Nonlinear magnetic systems – Energy and Co-energy methods – Elementary ac motor – Simulation methods – General considerations on modeling and simulating electric machines in Simulink
Three phase induction machines: Distributed windings – Inductance of a distributed winding – Three phase distributed windings – Mutual inductances of three phase distributed windings – Three phase induction machine – Stator to rotor mutual inductances – Air gap mmf – Voltage and flux linkage equations in phase variables – MMF equivalence and change of variables – Amplitude invariant and Power Invariant Transformations – Machine model in stationary frame – Transforming to rotor reference frame – Machine model in arbitrary rotating reference frame – Equations in special rotating reference frames – Space vector notations – Model using space vectors – Generalised model for system of coils – Turns ratio transformations – Γ and inverse Γ models – Electrical transients at constant speed – The constant speed eigenvalues – Sudden short circuit of unloaded induction motor
Three-phase synchronous machines: Salient pole wound field synchronous machines – Air gap permeance function – Inductances in salient pole machines – Model in phase variables – Transformation to stationary frame – Model in sychronous rotating reference frame – Effect of damper windings – d and q-axis equivalent circuits – Machine equations in operational impedances – open circuit and short circuit time constants – Modeling the sudden short circuit behaviour of an unloaded alternator – Permanent Magnet Characteristics – Permanent magnet synchronous machine – IPMSM models in stationary and rotating reference frames – Surface mount PMSM model – Modeling trapezoidal back-emf machines
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References
1. P C Krause, “Analysis of Electric Machinery and Drive Systems”.
2. N N Hancock, “Matrix Analysis of Electric Machinery”.
3. Richard T Smith, “Analysis of Electrical Machines”.