Open AccessOverview of fast on‐board integrated battery chargers for electric vehicles based on multiphase machines and power electronics
Author(s) -
Subotic Ivan,
Bodo Nandor,
Levi E.,
Dumnic Boris,
Milicevic Dragan,
Katic Vladimir
Publication year - 2016
Publication title -
iet electric power applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.815
H-Index - 97
eISSN - 1751-8679
pISSN - 1751-8660
DOI - 10.1049/iet-epa.2015.0292
Subject(s) - power electronics , torque , electromagnetic coil , stator , electric vehicle , network topology , drivetrain , automotive engineering , power (physics) , engineering , computer science , electric machine , battery (electricity) , topology (electrical circuits) , electrical engineering , electronics , voltage , physics , quantum mechanics , thermodynamics , operating system
The study provides an extensive overview of on‐board integrated chargers for electric vehicles that are based on multiphase (more than three phases) machines and power electronics. A common attribute of all discussed topologies is that they do not require a charger as a separate device since its role is transferred to the already existing drivetrain elements, predominantly a multiphase machine and an inverter. The study demonstrates how additional degrees of freedom that exist in multiphase systems can be conveniently utilised to achieve torque‐free charging operation. Therefore, although three‐phase (or multiphase) currents flow through machines’ stator windings, they do not generate any torque; thus the machines do not have to be mechanically locked. Cost and weight saving is achieved in this way, while the available space is increased. For each topology operating principles are explained, and its control elaborated in detail for both charging and vehicle‐to‐grid mode. Finally, the validity of theoretical considerations and control algorithms of some of the existing charging solutions is experimentally verified and experimental performance of all discussed topologies is compared.