Elevator starting compensation control method

Abstract

The invention relates to an elevator starting compensation control method. An elevator comprises an elevator controller, a weighing module and a location detecting module, wherein the weighing module and the location detecting module are electrically connected with the elevator controller. The elevator starting compensation control method includes steps of recording weight of the elevator with no load or full load at first, recording pulses fed back by the location detecting module of the elevator ascending with no load or full load and descending with no load or full load within a sampling period T when the elevator is started, calculating compensation torque in each state according to the pulses, calculating compensation torque under other loads, constituting calculated compensation torques into a compensation torque sequence, and adaptively adjusting the compensation torque sequence according to detected practical conditions. By the elevator starting compensation control method, the elevator can be prevented from slipping when started, and riding comfortability is improved. In addition, by the elevator starting compensation control method which is adaptive, adjustment accuracy is high, judgment by human experience is not needed during the elevator is debugged, and debugging efficiency is high.

Description

technical field [0001] The invention relates to the technical field of elevator startup control, in particular to a control method for elevator startup compensation. Background technique [0002] In the elevator system, the elevator car and the counterweight are twisted on both sides of the traction sheave by wire ropes. Generally, the elevator car and the counterweight have different weights. Therefore, there is an unbalanced load on both sides of the traction sheave. This causes the elevator car to slip or protrude when the elevator starts, which affects the comfort of the elevator ride. In order to keep the elevator car stationary when the elevator brake is opened, the traction sheave should output an electromagnetic torque equal to the load torque. In order to maintain the balance of the system, in the general elevator system, the parameters are adjusted manually by human body feeling, so that there is no displacement when the elevator starts at no-load and full-load sta...

AI Technical Summary

Problems solved by technology

[0002] In the elevator system, the elevator car and the counterweight are twisted on both sides of the traction sheave through the wire rope. Generally, the weight of the elevator car and the counterweight is different, so there is an unbalanced load on both sides of the traction sheave. As a result, the elevator car will slip or protrude when the elevator starts, which will affect the comfort of the elevator ride. In order to keep the elevator car still when the elevator brake is opened, the traction sheave should output an electromagnetic torque equal to the load torque In order to maintain the balance of the system, in the general elevator system, the human body feels and manually adjusts the parameters to make the elevator no-load start and full-load start without displacement, and then the elevator controller performs linear interpolation calculation on the above parameters to obtain the elevator start compensation curve , because the human body senses are not the same, the data obtained by feeling is not accurate enough. At the same time, it is inefficient to adjust the starting compensation curve of the elevator through the human body sense, and the weighing module in the elevator system is easily affected by the external environment and changes slowly. When the amount of change accumulates to a large enough amount, it will affect the accuracy of the calculation of the output torque of the traction sheave, which will eventually lead to a decrease in the comfort of the elevator ride

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