【摘要】 在我国面向“双碳”目标进行能源结构转型的背景下，火电机组将在保障电力安全、灵活调峰方面发挥重要作用。为了在机组宽负荷频繁调峰时提高对非线性、大惯性热力过程的控制性能，提出了一种基于调度信号的前馈补偿自抗扰控制器设计方法。在自抗扰控制的基础上，通过引入调度信号，并利用被控过程在变工况下的动态模型信息，分别对前馈控制器、反馈控制器、补偿环节和扩张状态观测器进行变参数设计和实时调整，从而形成变参数的前馈补偿自抗扰控制器设计方法，提高自抗扰控制器对系统大惯性和变工况的适应能力。通过某机组主蒸汽压力的控制仿真结果，验证了该方法的可行性和有效性。该方案中所提出的控制器结构简单，便于参数整定和现场实现，具有良好的实际应用前景。更多还原

【Abstract】 In the process of energy structure transformation and on the way to "dual carbon",thermal power units play an important role in securing power-supply safety and flexible load regulation. In order to improve the control on the thermodynamic process with large inertia and nonlinear characteristics in the case of frequent wide-load regulations with thermal units,a design of a feedforward compensated active disturbance rejection controller(ADRC)based on scheduling signal is proposed. By introducing the scheduling signal to the ADRC,the information of the dynamic model in the controlled process under off-design working conditions can be taken to set and adjust variable parameters of feedforward controllers,feedback controllers,compensators and extended state observers in real time.The proposed design can improve the adaptability of the feedforward compensated ADRC to large inertia and off-design working conditions.The effectiveness and feasibility of the design is proven by the simulation of a thermal unit’s main steam pressure control.The proposed ADRC is of simple structure and operability of parameter setting and on-site adjustment,showing excellent application prospects.更多还原