Exponential function based efficient elevator operation curve correction method of elevator frequency converter

Abstract

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.

Description

technical field [0001] The invention relates to elevator technology, in particular to an exponential function-based high-efficiency elevator running curve correction method for elevator inverters. Background technique [0002] The input signal of the frequency converter that controls the operation of the elevator is determined by the estimated elevator running speed curve, so the generation and online optimization of the elevator speed curve are of great significance to the running performance of the elevator. The usual elevator running curve includes jerk zone, uniform acceleration zone, deceleration zone, constant velocity zone, acceleration and deceleration zone, uniform deceleration zone and deceleration zone, in which jerk zone, deceleration zone, acceleration and deceleration zone and deceleration zone Some of the necessary sections. Therefore, in order to solve the problem of inaccurate parking of the elevator, it is necessary to correct the speed curve of the decele...

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Problems solved by technology

[0004] The purpose of the present invention is to provide an elevator that can not only accurately level the floor, but also meet the comfort requirements of the human body under the condition of high operating efficiency, aiming at the deficiency and defect that the operating curve of the existing elevator frequency converter cannot fully meet the requirements of people's comfort. Elevator frequency converter high-efficiency elevator operation curve correction method based on exponential function to solve the above problems

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