TY - GEN
T1 - Suggested design space in a PMSM parameter plane for variable flux machines
AU - Gagas, Brent
AU - Fukushige, Takashi
AU - Limsuwan, Natee
AU - Yu, Chen Yen
AU - Akatsu, Kan
AU - Lorenz, Robert D.
PY - 2013
Y1 - 2013
N2 - In this paper, design space for variable flux (VF) machines is examined in a permanent magnet synchronous machine (PMSM) parameter plane based on constant parameter, lossless power conversion properties, and estimated total loss distributions (i.e. copper and iron losses) while applying a d-axis current constraint based on an assumed demagnetization characteristic. Medium-to-high speed, partial torque operation is typical for duty cycle loads, such as in the case of the electric vehicle. VF machines can reduce losses in these operating conditions by reducing the internal magnetization state of the magnet, thereby reducing flux linkage associated with flux produced by the magnet. In this paper, VF machines with large normalized permanent magnet flux linkage which are in the highly salient, flux intensified (FI) machine design space (VFI-IPMs) are shown to have large maximum torque, rated power, inverter utilization, and constant power speed ratio (CPSR) as well as low losses in the low torque region over a wide speed range when compared to conventional fixed magnet flux PMSMs.
AB - In this paper, design space for variable flux (VF) machines is examined in a permanent magnet synchronous machine (PMSM) parameter plane based on constant parameter, lossless power conversion properties, and estimated total loss distributions (i.e. copper and iron losses) while applying a d-axis current constraint based on an assumed demagnetization characteristic. Medium-to-high speed, partial torque operation is typical for duty cycle loads, such as in the case of the electric vehicle. VF machines can reduce losses in these operating conditions by reducing the internal magnetization state of the magnet, thereby reducing flux linkage associated with flux produced by the magnet. In this paper, VF machines with large normalized permanent magnet flux linkage which are in the highly salient, flux intensified (FI) machine design space (VFI-IPMs) are shown to have large maximum torque, rated power, inverter utilization, and constant power speed ratio (CPSR) as well as low losses in the low torque region over a wide speed range when compared to conventional fixed magnet flux PMSMs.
KW - PMSM parameter plane
KW - flux-intensifying
KW - variable flux linkage interior permanent magnet
KW - variable flux machine
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U2 - 10.1109/IEMDC.2013.6556149
DO - 10.1109/IEMDC.2013.6556149
M3 - Conference contribution
AN - SCOPUS:84881623650
SN - 9781467349758
T3 - Proceedings of the 2013 IEEE International Electric Machines and Drives Conference, IEMDC 2013
SP - 549
EP - 556
BT - Proceedings of the 2013 IEEE International Electric Machines and Drives Conference, IEMDC 2013
T2 - 2013 IEEE International Electric Machines and Drives Conference, IEMDC 2013
Y2 - 12 May 2013 through 15 May 2013
ER -