Effect of DC Supply Voltage on Eddy Current Loss in Permanent Magnet of Permanent Magnetic Synchronous Motor for Electric Vehicle Application
The 2-D time-stepping finite element method is adopted to systematically analyze the effect of DC supply voltage of inverter on eddy current loss in permanent magnet of PMSM for EV application.The finite element model and inverter model are built to calculate the winding currents,eddy current losses in permanent magnet and air-gap flux densities with different DC supply voltages when the motor runs in flux-weakening area.Analysis shows that,the eddy current increases significantly with the increase of DC supply voltage,although the fundamental winding current decreases.The temperature-rise experiment of permanent magnet is carried out,proving the validity of analysis.
eddy current loss in permanent magnet DC supply voltage finite element method PMSM
Wu Xiao-peng Zhang Cheng-ning Dong Yu-gang
National Engineering Laboratory for Electric Vehicle, Beijing, China
国际会议
石家庄
英文
262-265
2012-10-26（万方平台首次上网日期，不代表论文的发表时间）