变频器的故障排除 第3讲 变频器过载故障及案例分析--控制网 关键词： 变频器；过载故障；反时限曲线；电机参数 [gap=553]Key words: AC inverter; Overload fault; Inverse-time curve; Motor parameter
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Inverse time curve 逆时钟曲线
To resolve the difficulty of progressive time calculating in normal inverse-time overcurrent curve, two algorithms of zonal table-lookup and Taylor expansion are put forward.
然后针对计算比较困难的一般反时限曲线，介绍了分区查表和泰勒展开法计算时延累加量的算法。
We make full use of DSP technology to implement the inverse curve and propose a new method to calculate the operation time of the protection on the base of DSP. This m...
论述了一种用dsp技术实现反时限特性曲线的新技术，提出了在DSP技术下计算动作时限的新方法。
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