Optimized Luenberger Observer-Based PMSM Sensorless Control by PSO

Table 8

Performance comparison of PMSM sensorless control system.

Item	Description	LO	2021 LO	Proposed method
1	Error for estimated position and actual position when start up	2.9°	2.18°	1.58°
2	Error for estimated position and actual position at stable running	2.5°	1.8°	1.2°
3	Error for estimated speed and actual speed when start up	27 RPM	35 RPM	17 RPM
4	Error for estimated speed and actual speed at stable running	±1 RPM	±0.1 RPM	±0.1 RPM