Active disturbance rejection controller design based on scheduling signal

doi:10.3969/j.issn.2097-0706.2022.10.007

Abstract

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.

Key words: active disturbance rejection control, scheduling signal, feedforward control, compensation, variable parameter, "dual carbon" target, energy mix transformation

CLC Number:

TK3：TM621

WANG You, SUN Liming, XUE Yali. Active disturbance rejection controller design based on scheduling signal[J]. Integrated Intelligent Energy, 2022, 44(10): 50-56.

Figures/Tables 6

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