Embedded electromagnetic speed regulation coal cutter traction system based on fuzzy control

Abstract

The invention relates to the design of an embedded electromagnetic speed regulation coal cutter traction system based on fuzzy control, i.e. a controller in the traction system adopts fuzzy PID control, and current and speed are double closed-loop. The traction system comprises an embedded hardware circuit and design of a fuzzy controller. AT91SAM99260 acts as the core of the embedded hardware circuit, and the embedded hardware circuit comprises an SDRAM interface circuit, an underlying circuit, a power supply circuit and a thyristor module circuit. The design of the fuzzy controller comprises establishment of a fuzzy subset and a subordinating degree function, establishment of the fuzzy controller structure and design of a software part, and the design of the fuzzy controller is the control core of a speed regulation system. The triangle subordinating degree function is selected to perform fuzzification on input quantity of the electromagnetic speed regulation traction system. The knowledge base of the traction system is established firstly to confirm the control strategy of input quantity, then inference is performed on the input condition by utilizing a Mamdani fuzzy model, and then defuzzification is performed on the obtained output quantity via a method of weighted average, and finally construction of the fuzzy controller of the embedded electromagnetic speed regulation coal cutter traction system is completed via combination of the software design. The controller of the traction system adopts fuzzy PID control so that system response is rapid, anti-interference capability is high and speed regulation is stable.

Description

technical field [0001] The invention relates to the technical field of an electromagnetic speed-regulating coal shearer traction system, in particular to an embedded electromagnetic speed-regulating coal shearer traction system based on fuzzy control. Background technique [0002] With the continuous improvement of coal mining technology, the shearer is more and more diversified, so its electric control system is relatively different. However, the current control system of the coal shearer is large in size, low in control efficiency, low in control accuracy, and its intelligence level Low cost, simple algorithm, waste of resources in hardware and software, with the improvement of mine intelligence, the enhancement of coal shearer traction, the stability of traction in complex situations, and the intelligent electronic control system all need to be improved. How to develop a low-cost, small-volume, high-performance, intelligent electrical control system for coal shearers is o...

AI Technical Summary

Problems solved by technology

[0002] With the continuous improvement of coal mining technology, the shearer is more and more diversified, so its electric control system is relatively different. However, the current control system of the coal shearer is large in size, low in control efficiency, low in control accuracy, and its intelligence level Low, simple algorithm, waste of resources in hardware and software, with the improvement of mine intelligence, the enhancement of coal shearer traction, the stability of traction in complex situations, and the intelligent electronic control system need to be improved

How to develop a low-cost, small-volume, high-performance, intelligent electrical control system for coal shearers is of great significance. The traditional control method of electromagnetic speed regulation is PID control, but PID is quite difficult to debug, and The parameters of the shearer will drift after running for a period of time, and the accuracy of PID setting in a changeable environment is low, and it is relatively cumbersome

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