The invention discloses an exponential function based efficient elevator operation curve correction method of an elevator frequency converter. The exponential function based efficient elevator operation curve correction method includes the following steps: (1) measuring a practical surplus distance between the elevator and the end point after the elevator enters a slow-down area; then acquiring the difference value between the practical surplus distance and the theoretically estimated surplus distance, namely a deviation surplus distance; (2) if the deviation surplus distance is not zero, correcting a displacement curve, a velocity curve, an acceleration curve and a jerk curve in a theoretically estimated curve, adding an elevator stop climbing curve, and making the displacement curve, the velocity curve, the acceleration curve, the jerk curve and the elevator stop climbing curve to be smooth and continuous so as to obtain a corrected curve, wherein the calculated duration of the elevator stop climbing curve is the time from the starting time of the elevator away from the end point to the elevator stopping time which are measured in the step (1); 3) linearly overlapping the obtained corrected curve and the theoretically estimated curve to obtain a corrected operation curve. The exponential function based efficient elevator operation curve correction method can achieve accurate and smooth elevator stopping.
Exponential function based efficient elevator operation curve correction method of elevator frequency converter
2015-09-02
Patent
Electronic Resource
English
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