Abstract
A brushless parallel hybrid excitation claw pole generator (HECPG) is proposed for electric vehicle (EV) application. Permanent magnet (PM) excitation method can reduce the volume of the machine and improve the power density and efficiency. Moreover, the voltage regulation can be ensured by field excitation. The flux path of the proposed HECPG is complex, and it will take a long time for 3D finite element analysis (FEA) to process it. To reduce simulation time, the mathematical model of the generator is given by a mesh-based 3D magnet equivalent circuit (MEC) network method considering radial and axial flux, magnetic saturation, and magnetic flux leakage. The performance of the generator is analyzed by FEA and prototype experiment. Finally, the results of 3D MEC, FEA, and experiment are compared. There is little difference between the three results, so 3D MEC can ensure the accuracy and significantly reduce the simulation time. The efficiency of the proposed HECPG is 90%, and the DC-Bus voltage can be modulated by changing the amplitude of field current.
Highlights
The claw pole machine was widely applied in electric vehicle (EV) applications
The efficiency of the machine can reach about 81% [12]. It was proved in the above research works that the power density and efficiency can be improved by using parallel hybrid excitation method, and the voltage can be adjusted by field excitation
The voltage obtained from the experiment is lower than finite element analysis (FEA) and
Summary
The claw pole machine was widely applied in electric vehicle (EV) applications. A typical claw pole generator (CPG) consists of a conventional stator that is equipped with a multiphase overlapping or nonoverlapping winding, and the two sets of claw pole rotors are nested together. Permanent magnet (PM) excitation can improve the power density and efficiency of the generator, the extensive use of PM leads to the high cost of claw pole machine and the voltage cannot be modulated, the requirements in EV application cannot be met [1,2,3,4]. A brushless parallel hybrid excitation claw pole generator (HECPG) is proposed. The efficiency of the machine can reach about 81% [12] It was proved in the above research works that the power density and efficiency can be improved by using parallel hybrid excitation method, and the voltage can be adjusted by field excitation. A brushless parallel hybrid excitation claw pole generator (HECPG). MEC, and higher power density, higher efficiency, and regulated voltage can be obtained through hybrid excitation
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
