ABSTRACT
As the d.c. brush machine is a primitive case of dq (orthogonal) physical model (used also for a.c. machines) with one (excitation) winding on stator (along axis d) and one on the rotor (along axis q), it is given here full attention for its applications (especially in d.c. brush PM motor drives) but also as an example for decoupled flux current (along d axis) and torque current (q axis) that is attempted later in the book for a.c. machines (induction and synchronous) to yield the fastest torque response.
The orthogonal model of d.c. brush machine with separate excitation (or PM), electromagnetic (constant speed) fast transients, electromechanical transients (at constant d.c. excitation or with PMs), variable flux transients, d.c. brush series motor transients, basic close loop control of d.c. brush PM motor (d.c.–d.c. converter fed d.c. brush PM motor), parameter estimation from test data (lab.), summary and five proposed problems (with solving hints) reflect the contents of this both applicable as it is or preparatory for a.c. machine-controlled flux and torque transients in further chapters (9 figures and 49 equations).
