Back to Search
Start Over
Optimal Third-Harmonic Current Injection for Asymmetrical Multiphase Permanent Magnet Synchronous Machines
- Publication Year :
- 2020
-
Abstract
- This article proposes a modeling approach and an optimization strategy to exploit a third-harmonic current injection for the torque enhancement in multiphase isotropic permanent magnet synchronous machines with nonsinusoidal back electromotive forces. The modeling approach is based on a proper vector space decomposition and on the associated rotational transformation, aimed to properly select a set of stator current space vectors to be controlled. It is presented for a generic (i.e., asymmetrical, with an arbitrary angular shift) winding configuration. The injection strategy is related to the choice of a constant synchronous current set aimed at minimizing the average stator winding losses for a given reference torque by using the first and the third spatial harmonics of the air-gap flux density. The optimal solution has been found analytically and has been developed in detail for a selected set of asymmetrical winding configurations. Both the numerical and experimental results are in good agreement with the theoretical analysis.
- Subjects :
- Computer science
Stator
third-harmonic current injection
020208 electrical & electronic engineering
Isotropy
02 engineering and technology
nonsinusoidal back electromotive force (EMF)
surface mounted permanent magnet synchronous machine (PMSM)
law.invention
Harmonic analysis
Asymmetrical machine
Asymmetrical machines
multiphase drives
power loss minimization
multiphase drive
Control and Systems Engineering
Control theory
Electromagnetic coil
law
Magnet
0202 electrical engineering, electronic engineering, information engineering
Torque
Electrical and Electronic Engineering
Current (fluid)
Constant (mathematics)
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....3eae729646393f9e96517d66e20e75b4