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Fuzzy control method for middle storage type coal mill

A technology of fuzzy control and fuzzy intelligent control, applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve problems such as large time lag, automatic control system cannot be optimally controlled, and large inertia

Inactive Publication Date: 2009-06-24
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Description
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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 middle storage 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 using an open control rule base.

[0007] 2. The development referred to in the present invention refers to the joint realization of the control rule base including the basic composite fuzzy model base and the quantitative processing control rule base.

[0008] 3. The basic composite fuzzy model library used in the fuzzy control rule library referred to in the present invention adopts an analytical expression with a correction factor, and the correction factor can be one or multiple; the actual use value of the correction factor is the set correction factor The weighted average of the correction factor obtained from the inverse calculation of the value and the real-time operating parameters.

[0009] 4. In the process of system debugging, the quantitative processing control rule table specified by the present invention can be adjusted appropriately according t...

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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 the intermediate storage type coal mill, particularly a fuzzy control method based on a basic composite fuzzy model library and a quantification processing control rule base, so that 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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IPC IPC(8): G05B13/02
Inventor 程启明
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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