Improving the Direct Thrust Control Performances of Linear Motor Based on Wavelet Analysis

Wavelet analysis is used in direct thrust control system of linear motor in this paper, because wavelet theory has the characteristic of the time frequency location characteristic and multi-resolution analysis. The observation of flux linkage is improved by accurate identification of primary resistance, and the direct thrust control performance of linear motor is further improved. This paper used wavelet transforms to extract data in different scaling function, and obtained the trace data from basic data. Then realized signal wavelet identification. The simulation results show that the identification system has good effect in primary resistance identification. The direct thrust control system based on resistance identification not only can efficiently improve the control system performances of linear motor, but also can offer a novel design opinion for improving the low-speed performances of linear motor