摘要
以电流圆模式的弱磁控制为基础,分析了影响永磁电机弱磁控制区最大输出功率的因素。同时对其中的两个主要因素凸极率ρ、弱磁率ξ做了详尽的分析、推导和仿真。结果表明ξ>1时,存在最大功率的弱磁(即理论转速可以无穷大),并且ρ越大,低速输出功率和转矩性能越好;ξ<1时,低速输出功率和转矩性能随着ρ的变化不大。
The current cycle flux-weakening control is illustrated, based on which, the factors affecting the maximum output power of the PMSM in the flux-weakening domain are analyzed. Then the impact of two main factors, salient rate p and flux-weakening rate ξ , are analyzed and simulated, The results show that： when ξ 〉 1 the output power can be maximum, and the larger p is, the better torque performance is and when ξ〈1 , the torque performance change a little.
出处
《陕西理工学院学报（自然科学版）》
2005年第3期59-62,共4页
Journal of Shananxi University of Technology:Natural Science Edition
关键词
永磁同步电机
弱磁
凸极率
弱磁率
PMSM
flux-weakening
salient rate
flux-weakening rate
