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基于转速感应的液压旋挖钻机功率匹配模糊控制

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Keywords: 机械工程,液压旋挖钻机,试验研究,模糊控制,功率匹配,转速感应控制

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Abstract:

?基于液压旋挖钻机负荷多变条件下的节能降耗要求,提出转速感应控制的负荷极限控制匹配方法。利用负荷变化引起的转速偏差的检测反馈,调节变量泵的排量,改变泵的吸收扭矩,控制发动机输出转速工作在能耗较低的转速范围,实现发动机与变量泵间的功率匹配;通过模糊自适应在线自整定调节PID参数,优化变量泵在不同工况下的变量调节性能,提高系统对负荷变化的适应性,实现发动机-变量泵系统的最佳效率匹配。经过在液压旋挖钻机平台上的试验论证,该方法达到了优化的目的,功率匹配效果显著。

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