Coal mining machine motor speed regulating method based on path optimization and speed regulating control

A technology of path optimization and speed regulation method, applied in control systems, AC motor control, slitting machinery, etc., can solve the problems of lack of self-adaptation, slow motor speed response, large load fluctuations, etc., to achieve fewer people or remote work, improve efficiency and stability, and reduce the effect of load fluctuations
CN104579104AInactive Publication Date: 2015-04-29CHONGQING UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHONGQING UNIV
Publication Date
2015-04-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a coal mining machine motor speed regulating method based on path optimization and speed regulating control, and belongs to the technical field of mining. The method is based on petrographic characteristics of a coal face, variable frequency speed regulating control is carried out on an alternating-current variable-frequency speed regulating electromotor used in a coal mining machine, by means of a controller switch, frequency control signal change is combined with speed regulating control, the rotation speed of an alternating-current variable-frequency traction motor and the rotation speed of a cutting motor are adjusted, a frequency control signal controlling change of the rotation speeds changes in a non-step mode and is converted into a target frequency signal through a transition path, and accordingly response of the electromotor is fast and load fluctuation is reduced. The coal mining machine motor speed regulating method based on path optimization and speed regulating control improves response speed of the alternating-current variable-frequency electromotor of the coal mining machine during speed regulating, and meanwhile reduces load fluctuation of the motors in the speed regulating process, so that effectiveness and stability of the alternating-current variable-frequency electromotor and the whole coal mining machine are improved, speed regulating of the whole machine has certain self-adaptability, and work can be done by a few people or remotely.
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Description

technical field

[0001] The invention relates to a speed regulation method of a coal shearer motor, in particular to a speed regulation method of a coal shearer motor based on path optimization and speed regulation control. Background technique

[0002] Early shearers used hydraulic traction, which had problems such as complex structure, high failure rate and low start-up rate. With the application and development of microelectronics technology, electric traction shearers were gradually used, and most shearers have The change from DC electric traction to AC variable frequency electric traction has made AC variable frequency electric traction shearer the main form of current coal shearer, which can achieve efficient coal mining and has made great progress in maintenance and reliability. However, in the environment of heavy load and strong impact, how to realize the quick response of the AC variable frequency motor of the shearer and reduce the load fluctuation during speed reg...

Claims

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