Control method, device, equipment for multiple stages of coal feeders and readable storage medium

Abstract

The invention discloses a control method for multiple stages of coal feeders. The method comprises the following steps that a fuel main control instruction is received, and whether the fuel main control instruction changes is judged; if yes, the change amount of the fuel main control instruction is calculated, and a main control fine adjustment parameter is determined by utilizing the change amount; and adjusting is carried out based on the fuel main control instruction by utilizing an experience bias parameter and the main control fine adjustment parameter, a coal feeding control instructionset which is in mapping relation with the coal feeders at all stages is obtained; and if not, current values of the coal feeders at all stages are obtained, and current bias parameters of the coal feeders at all stages are calculated by utilizing the current values; adjusting is carried out based on a fuel main control instruction by utilizing the experience bias parameter and the current bias parameters to obtain a coal feeding control instruction set; and a coal feeding control instruction is distributed to the coal feeders at all stages according to the mapping relation. According to the method, the coal flow smoothness and the stability of the coal amount in a hearth can be improved, and stable power generation can be facilitated. A control device and equipment for multiple stages of the coal feeders and a readable storage medium are further discloses, and has the above effects.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a multi-stage coal feeder control method, device, equipment and readable storage medium. Background technique [0002] The types of coal-fired thermal power generation units include pulverized coal boiler units and circulating fluidized bed boiler units. The coal feeding system of pulverized coal boilers is divided into direct blowing type and intermediate storage type. Direct blowing coal feeding system: the pulverized coal is directly sent to the furnace for combustion through the coal mill; the intermediate storage coal feeding system: the pulverized coal is first stored in the pulverized coal bin, and then passed through the pulverized coal bin from the pulverized coal bin to the pulverizer into the furnace for combustion. Most coal feeding systems of circulating fluidized bed boilers use one-stage coal feeders to directly send them into the furnace for combustion, a...

AI Technical Summary

Problems solved by technology

In the existing multi-stage coal feeder control method and control technology, when the main fuel control command changes, the control commands received by the coal feeders at all levels are consistent, and there will be surges in the coal flow and instantaneous coal flow congestion. The surge phenomenon and instantaneous coal flow congestion will affect the stability of the thermal power generation coal supply system

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