Abstract
According to the thermal characteristics of power plant, a multi-variable adaptive dynamic decoupling algorithm is adopted to decouple the sliding pressure section and the fixed pressure section respectively. The dynamic decoupling between the turbine control loop and the boiler control loop is realized. Through the dynamic decoupling controller, the two-input and two-output strong coupling coordination control system of power unit is decoupled into two independent automatic tracking and stability control system. The system can eliminate the coupling effect of main steam pressure and unit load regulation loop to the maximum, improving the control quality of unit control system at sliding pressure and variable load conditions.
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