Simplifying ADRC design with error-based framework:case study of a DC-DC buck power converter

• 作者: Rafal Madonski Krzysztof ?akomy Jun Yang
• 来源期刊: 控制理论与技术（英文版）
• 年，卷（期）: 2021,（1）
• 所属期刊栏目: RESEARCH ARTICLES
• 页码范围: 94-112
• 页数: 19页
• 语种: 英文

摘要

In this work,the problem of designing a robust control algorithm for a DC-DC buck power converter is investigated.The applied solution is based on a recently proposed error-based version of the active disturbance rejection control(ADRC)scheme,in which the unknown higher-order terms of the reference signal are treated as additional components of the system"total disturbance".The motivation here is to provide a practical following of a reference voltage trajectory for the buck converter 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 structure,simplified control rule,and intuitive 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.