Simulation, Design and Test of Brushless, Self-Excited Synchronous Field-Winding Machine

Electric Machines;Finite Element Analysis;Field-winding machine;Self-Excited;Brushless;Synchronous machine;Field Oriented Control;Electrical Engineering;Engineering;Electrical Engineering: Systems

Mohammed, AbdurazakHiskens, Ian ;

University of Michigan

关键词: Electric Machines;    Finite Element Analysis;    Field-winding machine;    Self-Excited;    Brushless;    Synchronous machine;    Field Oriented Control;    Electrical Engineering;    Engineering;    Electrical Engineering: Systems;   

Others  :  https://deepblue.lib.umich.edu/bitstream/handle/2027.42/140834/mzeynu_1.pdf?sequence=1&isAllowed=y

瑞士|英语

来源: The Illinois Digital Environment for Access to Learning and Scholarship

【 摘 要 】

The high cost of rare-earth materials has spurred interest in the development of high-performance electric machines which do not require these materials.However, other conventional machine architectures suffer from relatively low efficiency and power density when compared to rare-earth permanent-magnet machines. Synchronous field-winding machines have performance characteristics similar to those of rare-earth magnet machines. However, the power density and cost of conventional field-winding machines are adversely affected by the mechanisms which convey power to the field windings. This thesis presents a brushless, self-excited synchronous field-winding machine design. The rotor of this machine possesses two windings, a field winding and a ;;transformer” winding, that are connected through a diode rectifier circuit. Using field-oriented control techniques, an AC magnetic field is generated by the stator windings that is always aligned with the transformer winding. A simulation model which combines a finite element model of the machine’s magnetic behavior with a nonlinear circuit model of the diode rectifier is developed and used to design the machine. Experimental results from a prototype machine are presented.