【摘要】 针对紧凑型高压感应电机动态阻抗及起动特性不易通过实验测取的问题,对电机起动过程中的起动特性、饱和效应与趋肤效应之间的相互影响关系进行分析,根据电机具体结构,对现有模型和算法进行改进,并从实用角度出发,建立相互耦合的电机磁网络模型、分层法模型和动态数学模型。对耦合模型进行求解,实现了整个起动过程电机动态参数的计算。分析了阻抗变化对电机起动特性的影响。用有限元法和实测法验证了计算模型的准确性,可实现电机的系列化计算。更多还原

【Abstract】 To solve the difficulty in measuring the starting characteristic and dynamic impedance for the compact high induction motor,the interactional relationship among the starting characteristic,the saturation and the skin effect during the starting process is studied. According to the physical structure of motor,the present model and algorithm are improved. In view of engineering application,the coupled model of the motor magnetic circuit,layered method and dynamic mathematical model is established. The coupled model is calculated to obtain the dynamic parameters in the motor starting process. The influence of the impedance on the motor starting characteristic is analyzed. Both the finite element method and the experimental method verify the accuracy of the calculated model. With the method proposed in this paper,a series of motor calculation can be realized.更多还原