Coal cutter constant power fuzzy control system and method
A fuzzy control system and fuzzy control technology, applied in electric controllers, controllers with specific characteristics, etc., can solve the problem of poor real-time control accuracy, fuzzy constant power of shearers, and inability to realize constant power control of shearers, etc. question
Inactive Publication Date: 2018-08-24
GUANGXI UNIVERSITY OF TECHNOLOGY
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[0003] Based on this, it is necessary to provide a shearer constant power fuzzy control system and method for the problem that the traditional control system cannot realize the constant power control of the shearer, and the control accuracy and real-time performance are poor.
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[0049] In order to make the purpose, technical solution and advantages of the present invention clearer, the following examples will be used in conjunction with the accompanying drawings to further describe the shearer constant power fuzzy control system and method of the present invention in detail. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0050] see figure 1 As shown, the coal shearer constant power fuzzy control system of an embodiment of the present invention includes a programmable logic controller and a signal detection module 100, and a programmable logic controller (Programmable Logic Controller, PLC) includes a central processing unit module (Central Processing Unit, CPU) 210, fuzzy control module 220 and PID (proportional-integral-derivative controller) module 230.
[0051] The signal detection module 100 is used to detect the electric current of the cut...
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A coal cutter constant power fuzzy control system provided by the invention comprises a signal detection module, a central processing unit module, a fuzzy control module and a PID module; the signal detection module is configured to detect a current of a coal cutter cutting head motor to obtain a detection current value; the central processing unit module is configured to calculate a fuzzy controlinput quantity of the control method based on the detected current value; the fuzzy control module is configured to perform fuzzy control for the fuzzy control input quantity to obtain a fuzzy control output quantity and perform ambiguity resolution of the fuzzy control output quantity to obtain a PID control parameter; and the PID module is configured to perform PID calculation based on the PIDcontrol parameter to obtain and output control signals of the cutting head motor. When the load of the coal cutter is changed, fuzzy control is introduced to control the load of the cutting head motor, the coal cutter constant power fuzzy control system and method are good in control convergence, improve the control precision and stability of the cutting head motor and perform online, dynamic, accurate and real-time regulation of the cutting head motor to achieve constant power control of the cutting head motor.
Description
technical field [0001] The invention relates to the technical field of coal shearer control, in particular to a constant power fuzzy control system and method for a coal shearer. Background technique [0002] The coal mining machine is an important power equipment and resource acquisition equipment in the coal mining system. The safe, reliable, efficient and stable operation of the system is an effective prerequisite for the smooth progress of the coal mining work. Due to the influence of different coal seam hardness, the load at the front section of the cutting head of the shearer changes greatly, and the load change rate is too fast when the coal seam changes greatly. The traditional control method mainly realizes the variable speed control through the change of the load of the tunneling motor and the change of the current of the cutting motor. Neither the accuracy of the control nor the real-time performance of the control can meet the needs of the rapid change of the loa...
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Login to View More IPC IPC(8): G05B11/42
CPCG05B11/42
Inventor 李辉刘胜永黄力
Owner GUANGXI UNIVERSITY OF TECHNOLOGY