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针对三相交错并联Buck变换器工作时受多源干扰进而影响系统均流效果和动态性能的问题，提出一种高阶滑模自抗扰内外环级联控制策略。首先，在电压外环采用超螺旋滑模自抗扰控制，在超螺旋滑模控制器的设计中引入扰动信息，通过扩张状态观测器对系统集总扰动进行估计和补偿；其次，在电流内环引入自适应机制，实现超螺旋滑模切换增益的动态调整。最后，采用Lyapunov稳定性理论对提出的级联控制策略进行设计，保证了控制策略的稳定性。实验结果验证了所提控制策略比传统自抗扰控制具有更优异的鲁棒性和动态响应性能。
Abstract：To address the issue of impact of multi-source disturbance on a three-phase interleaved parallel Buck converter,which further affect the current sharing effect and dynamic performance of the system,a high-order sliding mode active disturbance rejection inner and outer loop cascaded control strategy is put forward. First,the super-twisting sliding mode active disturbance rejection control is applied to the voltage outer loop. The disturbance information is introduced to the design of a super-twisting sliding mode controller,and the lumped disturbance of the system is assessed and compensated by an extended state observer. Second,to achieve the dynamic adjustment of the super-twisting sliding mode switching gain,an adaptive mechanism is incorporated into the current inner loop. Finally,the proposed cascaded control strategy is designed using the Lyapunov stability theory to guarantee its stability. Experimental results confirm that compared with the conventional active disturbance rejection control,the proposed control strategy performs better in terms of robustness and dynamic responsiveness.
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基本信息:
DOI：10.19635/j.cnki.csu-epsa.001530
中图分类号:TM46
引用信息:
[1]巫庆辉,申世伟,成凯,等.三相交错并联Buck变换器的高阶滑模自抗扰控制[J].电力系统及其自动化学报,2025,37(08):20-27.DOI:10.19635/j.cnki.csu-epsa.001530.
基金信息:
国家自然科学基金资助项目（52177047）
2024-07-14
2024
2025-08-19
2025
2024-09-05
2
2024-09-26
2024-09-26
2024-09-26