Electromagnetic and resistance torque on a synchronous motor shaft with permanent magnet excitation

Discrete hall sensor based vector control algorithm of permanent magnet synchronous motor

“…It should be noted that the classical algorithm of the position switching [5] also ensures that the equality (4) is true, but achieves it differently -by adjustment of the stator field vector to the rotor position which does not provide the speed stabilization [6].…”

Regulation of mechanical coordinates of the switching control synchronous motor by method of vector control

“…Представим уравнения напряжений статорной цепи СД во вращающейся системе координат в относительных единицах с учётом общепринятых допущений о симметрии статорной обмотки, равенстве индуктивных сопротивлений двигателя по осям d и q, отсутствии влияния реакции якоря и т. д. [6]: -скорость идеального холостого хода (базовая скорость); τ = ω -относительное время.…”

Mathematical model of synchronous motor in small oscillation mode

“…Technical implementation of such correction is quite simple. Information concerning value of motor load torque can be obtained with reduced observer [7] according to expression…”