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The Fundamental Machine
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amplidyne applied voltages armature winding array assumed balanced polyphase brushes coefficients compartment connexion matrix considered constant d.c. machine damper circuits denoted derived differential geometry direct and quadrature direct axis direct currents ELECTRIC MACHINE ANALYSIS elements engineer equation 23 equation of voltage equations 17 equations of performance equations of small field winding Fourier series Gabriel Kron id and iq induction motor interconnexion Kron LaqP leakage inductance LodP magnetomotive force main diagonal mathematical matrix 30 matrix equation matrix multiplication Metadyne motional impedance matrix mutual inductance operational impedance matrix permeance phase currents quadrature axis replaced Repulsion Motor resistance result rf*LFp rotor windings routine method row and column salient-pole synchronous machine selsyn series machine short-circuit small oscillations stator windings steady-state conditions steady-state running substitution subtransient period supply frequency synchronous speed tensor calculus three-phase torque equation transpose two-axis quantities two-axis theory two-phase unit system written zero