Determination of the Structural Parameters of the Soft Earth-foundation Dump in Gushan Mine 姑山矿软土地基排土场结构参数的确定
Based on characteristics of discrete variable frequency soft starting, a novel speed measuring method using residual voltage after AC dump was proposed, and its counting formula, analysis of errors were presented. 针对离散变频技术调压调频的特点,提出了基于电动机失电残余电压的测速方法,推导出了转速计算公式,并进行了误差分析。