Abstract: This paper investigates sensorless control algorithms for PMSMs, critical for reducing system costs and improving reliability in industrial applications.
Content Overview:

1. Fundamentals of PMSM Control

• Mathematical modeling of PMSMs using dq0 transformation.

• Vector control principles (field-oriented control, direct torque control).

2. Sensorless Techniques

• Back-EMF estimation via sliding mode observers (SMOs).

• High-frequency signal injection methods for zero-speed operation.

3. Digital Implementation Challenges

• Discrete-time model mismatches and compensation techniques.

• Noise immunity in low-speed regions.

4. Application in Robotics

• Real-time implementation on FPGAs vs. DSPs.

• Parameter sensitivity analysis under varying load conditions.