摘要
首先采用有限元法对一台三相18/24极轮毂式开关磁阻电机(SRM)进行了静磁场分析,获得了电机的L-i-θ曲线、T-i-θ曲线、磁化特性曲线以及不同转子位置下的磁力线和磁通密度分布;接着,在现有文献的基础上充分考虑SRM的饱和非线性,采用基于Simplorer与Maxwell场路耦合的联合仿真方法对电机进行了瞬态场计算,得到了不同运行条件下的电流、电磁转矩等波形;最后,通过加工样机测量了电机在起动、稳态运行、加速、减速和变负载等状态下的实验波形,其结果与仿真波形吻合较好,验证了分析方法和结果的有效性。
The magnetostatics calculation is firstly carried out for an in-wheel SRM with three phases and 18/24 poles and several performances are obtained, including L - i -θ, T - i-θ, magnetization characteristics, the distributions of flux linkage and magnetic flux density at different rotor positions. Then the saturation and nonlinear characteristics of SRM are taken into consideration, and co-simulation of field-circuit coupling method based on Simplorer and Maxwell are applied for the SRM to analyze the transient performances and the current and torque curves under various conditions are also presented. Finally, a prototype is manufactured and the experimental waveforms are measured ranging from starting-up, steady operation, variable-speed to load adjustment. The consistent results between simulated and measured waveforms verify the validity of the method and its results.
出处
《电工技术学报》
EI
CSCD
北大核心
2017年第15期34-41,共8页
Transactions of China Electrotechnical Society
基金
国家自然科学基金项目资助(51477130)
