Open AccessComparative investigation of stator‐mounted permanent magnet machines under fault conditions
Author(s) -
Taras Petrica,
Li GuangJin,
Zhu ZiQiang,
Foster Martin P.,
Stone David A.
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.8203
Subject(s) - armature (electrical engineering) , magnet , stator , salient , control theory (sociology) , topology (electrical circuits) , electrical engineering , computer science , mechanical engineering , materials science , engineering , artificial intelligence , control (management)
Here, machines having permanent magnets (PM) mounted in the stator are compared during fault operations such as armature winding short circuits. The magnet potential irreversible demagnetisation is also investigated due to the fact that the PMs are placed close to the armature coils (heat sources) and hence are prone to temperature‐related demagnetisations. It is found that the doubly salient and flux reversal machines have inherently higher fault tolerant capabilities when compared with the switched‐flux one. To the point of view of demagnetisation withstand capability, the doubly salient topology stands out as the most robust one while the switched flux is the weakest one.