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Fuzzy control method for direct-blowing type coal mill

A technology of fuzzy control and fuzzy controller, applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve the problems of automatic control system not being able to optimally control, large inertia, large time delay, etc.

Inactive Publication Date: 2009-06-24
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The system is a complex system with nonlinear, strong coupling, large inertia, large time-delay, and time-varying parameters, and there are many uncertain interference factors. waste of electricity

Method used

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  • Fuzzy control method for direct-blowing type coal mill

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Embodiment Construction

[0006] 1. The present invention uses a fuzzy intelligent control method, wherein the fuzzy control part is realized by a fuzzy controller with intelligent characteristics.

[0007] 2. The fuzzy controller with intelligent features referred to in the present invention includes the theoretical realization form of the fuzzy controller and the realization form of the fuzzy controller device.

[0008] 3. The theoretical implementation form of the fuzzy controller included in the fuzzy controller referred to in the present invention is realized in the following manner:

[0009] 3.1, the fuzzy controller can simultaneously activate several rules to varying degrees, and each rule reflects different aspects of the overall information

[0010] 3.2. The controller performs fuzzy reasoning according to the pre-determined reasoning method, and obtains the fuzzy output as the fuzzy membership function.

[0011] 3.3, the controller defuzzifies the decision to obtain precise control instruct...

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Abstract

In order to improve the level of automatic control on a coal mill, the invention adopts a novel fuzzy control method for a direct-fired coal mill. A fuzzy controller having the intelligent properties is adopted by the fuzzy control part to realize the method, therefore, the coordinated operation of the coal mill and a boiler can be carried out and the operation of the coal mill can be economical and efficient.

Description

technical field [0001] Industrial control, automation, coal mill, thermal power plant, pulverizing system Background technique [0002] The process of a thermal power plant is: the fuel is burned in the boiler, the water in the boiler is heated to turn it into steam, the steam turbine receives the steam supplied by the boiler, and its rotor is driven by the steam to drive the generator to rotate to generate electricity. In my country, most The boilers used in thermal power plants are pulverized coal boilers. The combustion process is that the pulverized coal is injected into the furnace together with the air for suspension combustion. In the pulverized coal furnace, the contact area between fuel and air is greatly increased, the combustion is more violent, and the temperature in the furnace is also higher, so the combustion efficiency is also higher. Therefore, the pulverized coal furnace must be equipped with a complete pulverizing system for grinding raw coal into pulveri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/02
Inventor 程启明
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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