Feedforward Tracking Control of Main Steam Temperature with Disturbance Rejection

As a commonly used control system, main steam temperature control has the characteristics of large inertia and large lag, and the noise interference it receives can also have a significant impact on the system. Faced with controlled objects with large inertia and delay, traditional control methods based on feedback regulation are difficult to quickly adjust the system, and it is also difficult to identify and control disturbances in advance. At the same time, although using feedforward control based on inverse models can quickly regulate the system, the strong differential effect caused by its sensitivity to high-frequency noise can lead to a decrease in regulation quality, so a feedback channel needs to be designed to address the impact of noise. This article introduces the basic principles of feedforward control, feedforward tracking control, and active disturbance rejection control, and points out areas for improvement. On this basis, a feedforward tracking control algorithm for main steam temperature with disturbance suppression is proposed. Through simulation experiments, its characteristics were analyzed and its control effect, anti-interference ability, and robustness were verified.