Title :
A Lookup Table Based Loss Minimizing Control for FCEV Permanent Magnet Synchronous Motors
Author :
Lee, Junggi ; Nam, Kwanghee ; Choi, Seoho ; Kwon, Soonwoo
Author_Institution :
Dept. EE, POSTECH, Pohang
Abstract :
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.
Keywords :
electric vehicles; fuel cell vehicles; machine control; permanent magnet motors; synchronous motors; table lookup; torque control; FCEV; cross coupling; d-axis current; field saturation effects; fuel cell electric vehicle; lookup table; loss minimizing control; permanent magnet synchronous motors; torque control loop; Copper; Couplings; Hybrid electric vehicles; Iron; Mechanical variables control; Permanent magnet motors; Synchronous motors; Table lookup; Torque control; Voltage;
Conference_Titel :
Vehicle Power and Propulsion Conference, 2007. VPPC 2007. IEEE
Conference_Location :
Arlington, TX
Print_ISBN :
978-0-7803-9760-6
Electronic_ISBN :
978-0-7803-9761-3
DOI :
10.1109/VPPC.2007.4544120
