A Lookup Table Based Loss Minimizing Control for FCEV Permanent Magnet Synchronous Motors

A loss minimizing control law is developed for a fuel cell electric vehicle (FCEV) permanent magnet synchronous motor (PMSM) which reflects the effects of field saturation and cross coupling. Inductances are modelled as functions of q-axis current based on the flux data obtained experimentally. For...

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Bibliographic Details
Main Authors: Junggi Lee, Kwanghee Nam, Seoho Choi, Soonwoo Kwon
Format: Conference Proceeding
Language:English
Subjects:
Copper
Couplings
Hybrid electric vehicles
Iron
Mechanical variables control
Permanent magnet motors
Synchronous motors
Table lookup
Torque control
Voltage
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Summary:A loss minimizing control law is developed for a fuel cell electric vehicle (FCEV) permanent magnet synchronous motor (PMSM) which reflects the effects of field saturation and cross coupling. Inductances are modelled as functions of q-axis current based on the flux data obtained experimentally. For a given torque and a given speed, the loss minimizing current sets are searched from the experimental power loss data which are obtained for various d-axis current. The loss minimizing current sets are made into a lookup table, and it is utilized in the torque control loop. This controller guarantees high efficiency in every possible torque-speed operating point.
ISSN:1938-8756
DOI:10.1109/VPPC.2007.4544120