Presentation overview
 Why to measure hysteresis loop
 Design of hysteresis measurement
 Analyzing acquired data
 Application of analyzed data
 Verification of FEMM analysis
 Conclusion
PMSM
Goal: 250 000 rpm
Power output: 5kW
Why to measure hysteresis loop
Flux Density [T]
Magnetic flux
intensity [A/m]
In Opposite
Direction
Magnetic flux
intensity [A/m]
Flux Density [T]
In Opposite
Direction
Permanent magnet synchronous motor (PMSM)
WHY TO DO IT
Hysteresis loop
Design of hysteresis measurement
H (t ) 
N 1 i1 ( t )
2 r
Measuring procedure
B (t )  B 0 
v 2 (t )  
HOW TO DO IT
1
RC
t
1
SN
u
2
( ) d 
2 0
t
u
0
2
( ) d 
Toroidal core with winding
Workplace
Design of hysteresis measurement
Variables
XY Graph
DAQ
Assistant
Program block diagram
HOW TO DO IT
Writing to
Measurement
File
Design of hysteresis measurement
GUI from LabVIEW
HOW TO DO IT
Analyzing acquired data
Hysteresis loop of the toroidal shape core;
applied current 3 A, applied frequency 250 Hz
HOW TO DO IT
Application of analyzed data
Implementation
into FEMM
software
FOR WHAT USE IT
Application of analyzed data
Results of the
FEMM analysis
FOR WHAT USE IT
Verification of FEMM analysis
For current 4A:
Torque of PMSM in FEMM = 0.01... [N.m]
Torque of real PMSM= 0.01... [N.m]
PMSM prototype
FOR WHAT USE IT
Activating PMSM
Video na internetu
Conclusion
 Data for B-H curve of the proposed material were
acquired and analyzed
 B-H characteristic was implemented into FEMM
software and some parameters were verified
 Next steps
 Optimization of PMSM based on FEMM model
 Verification of FEMM model
 Considering the possibility of using other materials and
design
SUMMARY
Thank you !
Děkuji !
Dziękuję !
감사합니다!
Q&A