Title :
Design Considerations of a Hybrid Excitation Synchronous Machine with Magnetic Shunt Rotor
Author :
Zhuoran Zhang ; Ji Dai ; Chao Dai ; Yangguang Yan
Author_Institution :
Jiangsu Provincial Key Lab. of New Energy Generation & Power Conversion, Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China
Abstract :
This paper investigates the design considerations of a new hybrid excitation synchronous machine (HESM), which is characterized by magnetic shunt rotor and brushless field excitation. First, the basic constraints of flux control capability are discussed and deduced. Then the influence of some key structural parameters on flux control capability of the HESM is investigated by using equivalent magnetic circuits. The influence of permanent magnet width is further studied and verified by 3-D finite element analysis. A prototype HESM with magnetic shunt rotor is designed and developed. The experimental results show the satisfactory output performance, especially the significant sinusoidal EMF waveforms of the machine, and also verify the influence of air-gap variation on flux control capability of the HESM.
Keywords :
brushless machines; electric potential; equivalent circuits; finite element analysis; magnetic flux; permanent magnet machines; rotors; synchronous machines; 3D finite element analysis; air-gap variation; brushless field excitation; design consideration; equivalent magnetic circuits; flux control capability; hybrid excitation synchronous machine; magnetic shunt rotor; permanent magnet width; prototype HESM; sinusoidal EMF waveforms; structural parameters; Brushless excitation; design considerations; flux control; hybrid excitation; magnetic shunt; synchronous machine;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2013.2262000
