The schematic of a PMSM drive using a DTC-based speed loop PDFF controller is shown in Fig. 1. This DTC scheme is implemented in stator flux frame, which requires knowledge of stator flux in ...

Torque demand is one of the first factors to consider, encompassing nominal torque, acceleration torque, and emergency torque.

Prior to the advent of the adjustable-speed drive (ASD), the polyphase induction motor operated as a constant-speed motor. Figure 1 shows the well-known torque and current curves versus speed for the ...

When it’s time to specify a high-performance motor that offers both precise positioning and cost efficiency, stepper motors offer many advantages over DC motors thanks to their brushless technology.

In the simplest terms, torque represents how strong an engine is. It's the rotational force that translates into acceleration and, ultimately, speed. Torque determines how quickly a car launches off ...

There’s no way a sub-$2,000 electric motorcycle can be any good … or so you thought. And it’s not even Chinese! It comes from an American company called Yozma that’s based in Denver, Colorado.