Originally, three Model DC machines
were installed, together with a larger SNK bridge mill.
Through the appropriate use of reference frame theory, Electromagnetic Motion Devices, Second Edition introduces readers to field-oriented control of induction machines, constant-torque, and constant-power control of dc, permanent-magnet ac machines, and brushless dc machines
It is divided into three parts: fundamentals of permanent magnet synchronous and brushless dc machines
, power devices, and inverters; permanent magnet synchronous motor drives; and brushless dc motor drives.
Engineers and researchers have spared no efforts in fully developing special motors, such as brushless dc machines, servo motors, stepper motors, variable reluctance motors, pole-shaded motors, and disc motors.
The mechanical forces produced by the motor with a segment stator were determined by the armature reaction of the DC machine by means of dynamometer.