Modernizing the heat load control system of a once-through boiler unit at a thermal power station using a dynamic corrector

Operation of the heat load control system of the once-through boiler of a 300-MW power unit in maneuverable modes of its operation is considered. A new functional structure of the algorithm for controlling inertial thermal power facilities is proposed. The controlled plant model is identified from experimental data, and the stability of the closed-loop control system is estimated in the working range of load is estimated. The results of simulation and tests carried out on Unit 2 at the Tripol’e thermal power station have shown that better quality of control processes in response to external and internal disturbances is achieved through the use of a dynamic corrector.