Coal pulverizing system control method and device, control system and computer storage medium

Abstract

The invention relates to a coal pulverizing system control method and device, a control system and a computer storage medium. The method comprises the steps that under the condition that the following conditions are met, a starting signal is sent to the Nth coal pulverizing system: (BTU*MAX-A*T1)<C&D>(BTU*MAX)&X<(N-0.5) wherein BTU is a heat value correction coefficient, MAX is the maximum total output of (N-1) coal pulverizing systems, A is a variable load rate, T1 is the starting time of the coal pulverizing systems, C is a current load instruction, D is a scheduling plan load 15 minutes away from the current moment, and X is the total number of the coal pulverizing systems in the running state; wherein the starting signal is used for indicating the Nth coal pulverizing system to start. By means of the method, automatic starting and stopping of the coal pulverizing system at the rated load section ranging from 40% to 100% can be accurately achieved, the automation level of a unit is improved, manual intervention is reduced, and then the starting and stopping timeliness of the coal pulverizing system can be improved.

Description

technical field [0001] The present application relates to the technical field of automatic control, in particular to a control method, device, control system and computer storage medium of a pulverizing system. Background technique [0002] In the process of thermal power generation, most of the units in active service are equipped with CCS (Coordinated Control System, coordinated control system) to improve the degree of automation. After the unit is in normal operation, except for the case of equipment failure, it basically operates according to the dispatch curve in the AGC (Automatic Generation Control, automatic generation control) mode. However, since the current APS (Automatic Plant Start-up and Shut-down System) of coal-fired units can basically only realize the automatic start-up and stop of the load range from 0% to 40%, in practical applications, The load range of a coal-fired unit in normal operation is generally between 40% and 100%. Therefore, manual interventi...

AI Technical Summary

Problems solved by technology

However, since the current APS (Automatic Plant Start-up and Shut-down System) of coal-fired units can basically only realize the automatic start-up and stop of the 0% to 40% load segment, in practical applications, The load range of a coal-fired unit in normal operation is generally between 40% and 100%. Therefore, manual intervention is required to judge the start and stop timing of the pulverizing system, resulting in poor start and stop timeliness and the inability to realize the full automatic process of the whole process of variable load.

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