摘要
In this work,the problem of designing a robust control algor ithm for a DC-DC buck power converter is investigated.The applied solution is based on a recenly proposed eror-based version of the active disturbance rejection control(ADRC)scheme,in which the unknown higher-order lerms of the reference signal are treated as additional components of the system"total disturbance".The motivation here is to provide a prac tical following of a reference voltage trajectory for the buck converler in specific cases where neither the analytical form of the desired signal nor its future values are known a priori,hence cannot be directly used for control synthesis.In this work.the application of the error-based ADRC results in a prac-tically appealing control technique,with compact struc ture.simplified control rule,and intwitive tuning(inherited from the conventional output-based ADRC scheme).Theoretical.numerical,and experimental results are shown to validate the efficacy of the error-based ADRC in buck converter control,followed by a discussion about the revealed theoretical and practical limitations of this approach.
基金
This work was supported by the Fundamental Research Funds for the Central Universities(No.21620335).
