TY - JOUR
T1 - Pole-changing flux-weakening DC-excited dual-memory machines for electric vehicles
AU - Li, Fuhua
AU - Chau, K. T.
AU - Liu, Chunhua
PY - 2016/3/1
Y1 - 2016/3/1
N2 - The dc-excited dual-memory machine utilizes two different kinds of permanent magnet (PM) materials for each PM pole. By employing a set of separately controlled magnetizing windings, it can easily realize the pole-changing function without affecting or changing the armature winding topology. In this paper, the principle of pole changing of the dc-excited dual-memory machine is analyzed by finite-element method. With the aim of preventing unexpected demagnetization of the low-coercivity PMs, a special scheme, namely the pole-protection scheme, is developed to shield these PMs. Experimental results are given to verify the pole-changing principle of the dc-excited dual-memory machine, and the feasibility of pole-dropping and pole-retrieving operations.
AB - The dc-excited dual-memory machine utilizes two different kinds of permanent magnet (PM) materials for each PM pole. By employing a set of separately controlled magnetizing windings, it can easily realize the pole-changing function without affecting or changing the armature winding topology. In this paper, the principle of pole changing of the dc-excited dual-memory machine is analyzed by finite-element method. With the aim of preventing unexpected demagnetization of the low-coercivity PMs, a special scheme, namely the pole-protection scheme, is developed to shield these PMs. Experimental results are given to verify the pole-changing principle of the dc-excited dual-memory machine, and the feasibility of pole-dropping and pole-retrieving operations.
KW - Dual-memory machine
KW - electric vehicle
KW - flux-mnemonic machine
KW - flux-weakening
KW - memory machine
KW - permanent magnet machine
KW - pole-changing
UR - http://www.scopus.com/inward/record.url?scp=84943151802&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84943151802&origin=recordpage
U2 - 10.1109/TEC.2015.2479458
DO - 10.1109/TEC.2015.2479458
M3 - RGC 21 - Publication in refereed journal
SN - 0885-8969
VL - 31
SP - 27
EP - 36
JO - IEEE Transactions on Energy Conversion
JF - IEEE Transactions on Energy Conversion
IS - 1
M1 - 7286788
ER -