Decoupling Compensation Control Method for Coordinated Control of Unit Generators and Main Control System
A unit unit, coordinated control technology, applied in general control systems, control/regulation systems, adaptive control, etc., can solve problems such as affecting the intake air volume of the steam turbine, affecting the main steam pressure of the boiler, and affecting the unit load.
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[0093] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0094] Such as Figure 1 to Figure 4 As shown, taking a 300MW subcritical drum boiler in China as an example, the decoupling compensation control method of the main control system of the coordinated control of the unit unit is explained as follows in conjunction with the simplified diagram. It is obtained through the disturbance test and the genetic identification algorithm,
[0095] 1) Transfer function G of coal feed relative to main steam pressure 11 (s) are as follows:
[0096]
[0097] Among them, k 11 Gain of main steam pressure relative to coal feed, T 11 Inertia time of main steam pressure relative to coal feed rate, τ 11 The delay time of the main steam pressure relative to the coal supply link, s is the Laplacian operator;
[0098] Get the transfer function G of the coal feed relative to the load of the unit 21 (s) are as follows:
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