Accurate parking method for underground coal mine electric locomotive
A technology for electric locomotives and coal mines, which is applied in the direction of electric vehicles, motor control, and generator control. It can solve problems such as difficult processes, inaccurate parking of electric locomotives, and increased difficulty in loading and unloading goods, so as to reduce parking errors and achieve precise parking. , the effect of improving production efficiency
Pending Publication Date: 2022-03-08
CHINA UNIV OF MINING & TECH +1
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Problems solved by technology
And the parking method in the prior art relies on the driver's operation, for the larger vehicle of this mass of the electric locomotive, its precise parking process will be a task with higher technical requirements for the driver, and the process of its precise parking The difficulty is high, which will increase the fatigue of the driver and the danger of driving, and the inaccurate parking of the electric locomotive will increase the difficulty of loading and unloading goods
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[0056] The present invention will be further described below in conjunction with the accompanying drawings.
[0057] refer to figure 1 , the embodiment of the present invention provides a method for precise parking of an electric locomotive in a coal mine. The electric locomotive includes a permanent magnet synchronous motor. When the electric locomotive receives a parking instruction, its braking process includes the following steps:
[0058] S1. According to the self-weight of the electric locomotive, the real-time load of the electric locomotive, the real-time track gradient, the real-time distance between the electric locomotive and the end point, and the real-time speed of the electric locomotive, a model of the braking torque of the electric locomotive is established;
[0059] S2. Establish a double closed-loop vector control model, combined with the model of the braking torque of the electric locomotive, according to the self-weight of the electric locomotive, the real-...
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The invention discloses an accurate parking method for an underground coal mine electric locomotive, which comprises the following steps of: establishing a braking torque model of the electric locomotive and combining the braking torque model with a double-closed-loop vector control model; the real-time load of the electric locomotive, the real-time track gradient, the real-time distance between the electric locomotive and an end point, the real-time speed of the electric locomotive and the calculated value of the braking torque of the electric locomotive, which are acquired by the model of the braking torque of the electric locomotive and the double-closed-loop vector control model, are used as a sample set to train the single-hidden-layer feedforward neural network model; the trained single-implicit strata feedforward neural network model is imported into a double-closed-loop vector adjusting system of the permanent magnet synchronous motor of the electric locomotive, and the double-closed-loop vector adjusting system controls the permanent magnet synchronous motor of the electric locomotive to generate braking torque, so that accurate parking of the electric locomotive is achieved, parking errors are reduced, and production efficiency is improved.
Description
technical field [0001] The invention relates to a precise parking method for an electric locomotive, in particular to a precise parking method for an electric locomotive underground in a coal mine. Background technique [0002] The electric locomotive is not only an important part of the coal mine auxiliary transportation vehicle system, but also an important means to assist the normal production of mining equipment, reduce maintenance time, labor hours, and improve production efficiency. The use of electric locomotives in auxiliary transportation can effectively improve production efficiency. [0003] The precise parking technology of electric locomotives, as one of the key technologies of train-rail coordination, can realize autonomous precise parking of electric locomotives. For rail vehicles such as electric locomotives, the realization of precise parking is of great significance: the realization of precise parking of electric locomotives in coal mines is a requirement ...
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IPC IPC(8): H02P21/14H02P21/36H02P6/24H02P25/022B60L7/00
CPCH02P21/0003H02P21/0014H02P21/14H02P21/36H02P6/24H02P25/022B60L7/00H02P2207/05
Inventor 马驰黄保胜朱真才王眉林彭玉兴史发慧钱军张敬伟肖兴明李允旺王大刚
Owner CHINA UNIV OF MINING & TECH