动圈式直线电机的高响应特性研究

针对常规电机在输出电磁力、响应时间和响应速度等特性上的不足,基于线圈组合变换的电感和电阻对时间常数和电流的影响,对动圈式直线电机的载流线圈采用分割与组合变换的方法,对其响应时间、输出位移、输出电磁力和加速度进行了数学建模和仿真分析。结果表明:在单位阶跃信号输入下,均匀分割的线圈组件通过并联设计,其位移的阶跃响应由14.6 ms以上减小到9.94 ms以内,响应速度至少增加了1倍,电磁力由原来的10.8 N增加到93.2 N,加速度也提高了8倍。

Study on High Response Characteristics of a Moving Coil Linear Motor

Aimed at the characteristic deficiency of a moving coil linear motor ( MCLM), such as the output electromagnetic force, response time and response speed , and based on the time constant and currents effected by inductance and resistance of the transformation coils in combination , the carrying current coils of MCLM were adopted a transformation method of segmentation and com -bination .The mathematical modeling and simulation analysis for the response time , output displacement , output electromagnetic force , and acceleration of MCLM were carried out respectively .Results show that the step response of displacement of the MCLM with parallel designed and uniformly segmented coils can be decreased in 9.94 ms from the original 14.6 ms, the response speed is increased by at least 1 time, the output electromagnetic force is improved from the original 10.8 N to 93.2 N, and the acceleration is also increased to 8 times in the step input signal .