Control method for overcoming fluctuations in main steam pressure in multi-coal mixed firing conditions of heating units
A technology of main steam pressure and heating unit, applied in the direction of adaptive control, general control system, control/regulation system, etc., to achieve good real-time performance, ensure stability, and reduce labor intensity
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[0026] The invention is a control method for overcoming the main steam pressure fluctuation in the multi-coal co-combustion working condition of the heating unit, such as figure 2 shown, including the following steps:
[0027] Step 1: Add the following loop interfaces to the control logic configuration of the DCS distributed control system of the heating unit: control loop interface for coal feeding to overcome main steam pressure fluctuation, primary air volume control loop interface to overcome main steam pressure fluctuation, overcome main steam pressure Fluctuation main steam pressure setting value control loop interface, overcoming main steam pressure fluctuation steam turbine high pressure valve control loop interface;
[0028] Step 2: Carry out the following configuration in the control logic of the DCS distributed control system of the heating unit: carry out the logic configuration of the control loop for overcoming the fluctuation of the main steam pressure, and int...
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