Identification of differential inductances of permanent magnet synchronous machines using test current signal injection

2012 ◽  
Author(s):  
Sebastian Ebersberger ◽  
Bernhard Piepenbreier
Keyword(s):  
Permanent Magnet ◽  
Synchronous Machines ◽  
Current Signal ◽  
Permanent Magnet Synchronous Machines ◽  
Signal Injection ◽  
Test Current

scholarly journals Comparative Analysis of High Frequency Signal Injection Based Torque Estimation Methods for SPMSM, IPMSM and SynRM

Energies ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 592
Author(s):  
Maria Martinez ◽  
David Reigosa ◽  
Daniel Fernandez ◽  
Fernando Briz
Keyword(s):  
Permanent Magnet ◽  
High Frequency ◽  
Permanent Magnets ◽  
Estimation Methods ◽  
Synchronous Machines ◽  
Permanent Magnet Synchronous Machines ◽  
Frequency Signal ◽  
High Frequency Signal ◽  
Torque Estimation ◽  
Signal Injection

Torque estimation in permanent magnet synchronous machines and synchronous reluctance machines is required in many applications. Torque produced by a permanent magnet synchronous machine depends on the permanent magnets’ flux and d q -axes inductances, whereas torque in synchronous reluctance machines depends on the d q -axes inductances. Consequently, precise knowledge of these parameters is required for proper torque estimation. The use of high frequency signal both for permanent magnets’ flux and d q -axes inductances estimation has been recently shown to be a viable option. This paper reviews the physical principles, implementation and performance of high-frequency signal injection based torque estimation for permanent magnet synchronous machines and synchronous reluctance machines.

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