Permanent magnet machines - servomotors a case study

摘要: For many years permanent magnet machines have been the best choice for low to medium size (up circa 200 Nm) servo drives. These drives find use in diverse applications some more demanding performance than others but they are typified by a demand very controllable torque, speed and position with high dynamics, torque ripple degree of linearity. The electronically commutated machine at least equals most categories exceeds its competitors comfortable margin terms per unit volume, inertia, controllability, One latest developments is integration measurement control motor separate current controller. state-of-the-art conventional servomotors discussed then new described including nonoverlapped single tooth windings. (8 pages)