Open AccessArbitrary d–q current sharing in three‐phase winding sets of multi‐phase machines
Author(s) -
Zoric Ivan,
Jones Martin,
Levi Emil
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.8130
Subject(s) - stator , linear subspace , current (fluid) , control theory (sociology) , set (abstract data type) , decomposition , computer science , feature vector , electromagnetic coil , space (punctuation) , power (physics) , topology (electrical circuits) , phase (matter) , mathematics , control (management) , physics , artificial intelligence , engineering , electrical engineering , pure mathematics , combinatorics , ecology , quantum mechanics , biology , programming language , operating system
This study proposes a technique for arbitrary current sharing between winding sets of any multiple three‐phase machine by using a decoupled control in two‐dimensional orthogonal vector space decomposition subspaces. With ability to arbitrarily set the d–q currents in all winding sets, both active and reactive power of each winding set can be arbitrarily set as well. Normally, this behaviour requires machine model in multi‐stator variables where control implementation may be challenging due to the cross‐coupling between winding set variables. On the contrary, in this study, the correlation between multi‐stator and the vector space decomposition modelling has been used so that benefits of both modelling approaches are fully utilised: a decoupled control feature thanks to vector space decomposition and an ability to individually control winding set currents, a feature of the multi‐stator modelling approach.