This MCE implements sensorless FOC in both interior and surface PMSMs using single or leg shunt current feedback through a combination of hardware and firmware elements. Fig. 1: Block diagram – ...

A typical block diagram of sensorless vector control includes two hardware blocks: Induction or BLDC motor, and a three-phase bridge — including rectifier, inverter, and acquisition and ...

The InstaSPIN-MOTION motor control solution from Texas Instruments is a comprehensive torque-, speed- and motion-control software solution for robust system performance and high efficiency for motor ...

General-purpose algorithm allows optimum sensorless control at zero speed for any kind of permanent magnet synchronous motor.

A basic direct torque control (DTC) drive system enables effective control of stator flux modulus and electromagnetic torque. This high performance method can be further improved to a sensorless speed ...

Cost-effective application of variable speed control of a PMSM demands a control approach that avoids the use of rotor-position sensors which are typically used in industrial-drive applications. A ...

In this paper, we discuss theoretically the characteristics of an induction traction motor speed sensorless control system applied to the DC electrified railway vehicle traction. A state equation is ...

A sensorless control algorithm can use motor-winding-current measurements to indirectly determine the rotor-flux position. This algorithm allows for sinusoidal currents to drive the motor.

Figure 2: ESC with sensorless motor control. On the right is the High-Speed Sensorless-FOC Reference Design for Drone ESCs by Texas Instruments, and on the left is its block diagram. (Source: Texas ...

Germany’s KEB Automation has developed and patented a sensorless method for controlling motors that, it claims, is “in no way inferior to operation with an encoder”. The field-oriented vector method ...