Title :
Influence of periodic carrier frequency modulation on stator steel core loss and rotor eddy current loss of permanent magnet synchronous motor
Author :
Xu Yongxiang ; Yuan Qingbing ; Zou Jibin ; Wang Hao
Author_Institution :
Dept. of Electr. Eng., Harbin Inst. of Technol., Harbin, China
Abstract :
The influences of sinusoidal and sawtooth periodic carrier frequency modulation (PCFM) on stator steel core loss and rotor eddy current loss of permanent magnet synchronous motor (PMSM) are discussed in this paper. Sinusoidal PCFM and sawtooth PCFM are theoretically analyzed. The reason why stator steel core loss and rotor eddy current loss of PMSM increase when using PCFM is also theoretically investigated. Stator steel core loss and rotor eddy current loss of PMSM driven by fixed frequency pulse width modulation (FFPWM), sinusoidal PCFM and sawtooth PCFM are simulated by finite element analysis (FEA) to discuss the influence of PCFM on stator steel core loss and rotor eddy current loss. FEA results validate that sinusoidal PCFM and sawtooth PCFM increase the stator steel core loss and rotor eddy current loss of PMSM, compared with FFPWM.
Keywords :
cores; eddy current losses; finite element analysis; frequency modulation; permanent magnet machines; pulse width modulation; rotors; stators; synchronous machines; FEA; FFPWM; PMSM; finite element analysis; fixed frequency pulse width modulation; periodic carrier frequency modulation; permanent magnet synchronous motor; rotor eddy current loss; sawtooth PCFM; sinusoidal PCFM; stator steel core loss; Core loss; Eddy currents; Rotors; Stator cores; Stator windings; Steel; Periodic carrier frequency modulation; Permanent magnet synchronous motor; Rotor eddy current loss; Stator steel core loss;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2014 17th International Conference on
Conference_Location :
Hangzhou
DOI :
10.1109/ICEMS.2014.7013850
