Method for rapidly measuring back electromotive force coefficient of synchronous traction machine
A technology of traction machine and back electromotive force, which is applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve the problems of large measurement errors and troublesome measurement methods, and achieve the effects of convenient operation, improved measurement efficiency and measurement accuracy
Pending Publication Date: 2021-08-20
杭州长牛科技有限公司
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Problems solved by technology
Therefore, it is necessary to accurately measure the back EMF coefficient of the traction machine after the production of the traction machine is completed, but in the prior art, the method of measuring the back EMF coefficient of the traction machine is cumbersome, and the measurement error is relatively large
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[0026] see Figure 1-2 , a method for quickly measuring the back EMF coefficient of a synchronous traction machine according to an embodiment of the present invention, comprising the following steps:
[0027] Step S101, preparing equipment: prepare a resistance meter, a voltmeter, an ammeter, and make a rotational speed measuring device;
[0028] Step S103, measuring the resistance value: using a resistance meter to measure the armature resistance value of the traction machine;
[0029] Step S105, measure voltage, current and rotational speed: add a rated voltage to the traction machine to let the traction machine run without load, and use a voltmeter and an ammeter to measure the armature voltage and armature current of the traction machine respectively, and use the rotational speed to measure The device measures the speed of the traction machine;
[0030] Step S107, calculating the back EMF coefficient: calculate the back EMF coefficient according to the measurement formul...
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The invention discloses a method for rapidly measuring the counter potential coefficient of a synchronous traction machine. The method comprises the following steps of preparing equipment, specifically, preparing a resistance meter, a voltmeter and an ampere meter, and manufacturing a rotating speed measurement device; measuring a resistance value, specifically, measuring an armature resistance value of the traction machine by using a resistance meter; and measuring voltage, current and rotating speed, specifically, rated voltage being applied to the traction machine to enable the traction machine to operate in a no-load mode. The method is advantaged in that simple and easy instruments such as the encoder, the resistance meter, the voltmeter and the ammeter can be used to rapidly measure the counter electromotive force coefficient of the traction machine, operation is convenient and fast, and different traction machines can be continuously measured so as to adapt to measurement of the counter electromotive force coefficients of large-batch traction machines, the method can greatly improve measurement efficiency and measurement precision, and can adjust the height of the encoder according to the height of the traction machine, and can adapt to measurement of different traction machines.
Description
technical field [0001] The invention relates to the technical field of traction machine parameter measurement, in particular to a method for quickly measuring the back EMF coefficient of a synchronous traction machine. Background technique [0002] The elevator traction machine is the power equipment of the elevator, also known as the elevator host. The function is to convey and transmit power to make the elevator run. It is composed of motor, brake, coupling, reduction box, traction wheel, frame, guide wheel and auxiliary turning hand wheel. The guide wheels are generally installed on the frame or the load-bearing beam under the frame. Some of the turning hand wheels are fixed on the motor shaft, and some are usually hung on the nearby wall, and then set on the motor shaft when in use. [0003] There are many parameters in the design and use of the traction machine, among which the back EMF coefficient is an important index, which is related to the performance of the mot...
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IPC IPC(8): G01R31/34G01M13/025
CPCG01R31/343G01M13/025
Inventor 毛强
Owner 杭州长牛科技有限公司