The optimum median current and median time were found by experiment when welding steel using waveform with middle median phase.
采用中中值波形控制方法对钢进行焊接试验，确定了最佳的中值电流和中值时间。
Aiming to minimize the torque ripple in condition of non-perfect BEMF waveform, the dissertation present a optimum current tracking control technique.
针对这种反电动势波形偏离理想波形的情况，本文提出了一种最优电流跟踪法来抑制转矩脉动。
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