应用于DC-DC降压变换器的分数阶模糊pid混合控制器的研制

IF 4.9 2区 工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC
Michel W. de S. Campos;Edmilson M. Prado;Renan L. P. De Medeiros;Maurício P. Fantesia;Werbeston D. De Oliveira;Venicio C. Conceição;Iago V. Correa;Ozenir F. da R. Dias;Florindo A. de C. Ayres Júnior
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引用次数: 0

摘要

本文的重点是开发一种混合分数阶PID (FOPID)控制器,增强模糊逻辑来调节DC-DC降压变换器的输出电压。FOPID控制器通过提供更好的鲁棒性和更灵活的调谐标准来扩展传统的PID控制。控制器的增益采用模糊逻辑动态调整,提高了在不同运行条件下的性能。该项目涉及Buck转换器的数学建模和将分数阶运算符近似为整数阶等效运算符。利用MATLAB、Simulink和LTspice等计算工具进行频域分析,对控制系统进行设计和仿真。装配了一个物理Buck变换器来验证控制器的实验性能。利用系统的非线性特性对混合控制器进行了优化,确定了三个不同工作区域的最佳整定参数。将实验结果与仿真数据进行了比较,验证了该混合控制器在闭环运行中的性能提高。该研究的结论是,所提出的方法优于传统的调谐方法,展示了其在先进工业控制系统中的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Development of a Hybrid Fractional-Order Fuzzy-PID Controller Applied to a DC-DC Buck Converter
This brief focuses on developing a hybrid fractional-order PID (FOPID) controller enhanced with fuzzy logic to regulate the output voltage of a DC-DC Buck converter. The FOPID controller extends traditional PID control by offering improved robustness and more flexible tuning criteria. The controller’s gains are dynamically adjusted using fuzzy logic, enhancing performance across varying operating conditions. The project involved mathematical modeling of the Buck converter and approximating fractional-order operators to integer-order equivalents. Frequency domain analysis was performed using computational tools, including MATLAB, Simulink, and LTspice, to design and simulate the control system. A physical Buck converter was assembled to validate the controller’s experimental performance. The system’s non-linearities were characterized to optimize the hybrid controller, and the best tuning parameters were identified for three distinct operating regions. The experimental results were compared with simulation data, demonstrating the hybrid controller’s enhanced performance in closed-loop operation. The study concludes that the proposed approach outperforms conventional tuning methods, showcasing its potential for advanced industrial control systems.
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来源期刊
IEEE Transactions on Circuits and Systems II: Express Briefs
IEEE Transactions on Circuits and Systems II: Express Briefs 工程技术-工程:电子与电气
CiteScore
7.90
自引率
20.50%
发文量
883
审稿时长
3.0 months
期刊介绍: TCAS II publishes brief papers in the field specified by the theory, analysis, design, and practical implementations of circuits, and the application of circuit techniques to systems and to signal processing. Included is the whole spectrum from basic scientific theory to industrial applications. The field of interest covered includes: Circuits: Analog, Digital and Mixed Signal Circuits and Systems Nonlinear Circuits and Systems, Integrated Sensors, MEMS and Systems on Chip, Nanoscale Circuits and Systems, Optoelectronic Circuits and Systems, Power Electronics and Systems Software for Analog-and-Logic Circuits and Systems Control aspects of Circuits and Systems.
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