磁浮直线电机的等效控制模型改进

为准确测量电机参数,提出一种新的改进的SLIM等效电路参数辨识方法,利用不同频率时的电机推力、变频器输出电压和电流等静态堵转特性,结合算法推算出适合控制用的SLIM等效电路中的初级电阻、漏感、次级等效电阻和漏感参数.通过MATLAB仿真实验,结果表明各动态参数幅值的修正对提高电机速度辨识精度是有利的,并在中低速磁悬浮模拟实验平台上进行实验,验证了在改进后的T-模型下,对结果分析可以得知电机的状态辨识效果和精度得到了提高,并对以后的电机参数设计具有指导意义.

The improvement of equivalent control model research on the maglev linear motor

In order to measure the motor parameters. This paper presents a new and improved SLIM equivalent circuit parameter identification, the motor thrust using different frequencies, the inverter output voltage and current, static stall characteristics, combined with suitable control algorithms calculate the equivalent circuit of SLIM primary resistance, leakage i_n ductance, secondary equivalent resistance and leakage inductance parameter. By finite element simulation experiments show that the amplitude of the dynamic parameters of each amendment to increase the motor speed identification accuracy is beneficial, conduct experiments on low-speed maglev simulation platform, validated under T-improved model, the motor status identification results show the current state of reconstruction, not only in the dynamic process of change or steady-state accuracy, and has a guiding significance to the future design of motor parameters.