电子测量与仪器学报

刘春喜,田迎澳,王涛.混合三电平双有源桥变换器超螺旋滑模自抗扰控制策略[J].电子测量与仪器学报,2025,39(10):209-219

混合三电平双有源桥变换器超螺旋滑模自抗扰控制策略

Super twisting sliding mode active disturbance rejection controlstrategy for hybrid three-level dual active bridge converter

DOI：

中文关键词: 超螺旋滑模控制自抗扰控制混合三电平双有源桥变换器改进扩展移相调制电流应力

英文关键词:super twisting sliding mode control active disturbance rejection control hybrid three-level dual active bridge converter improved extend phase shift control current stress

基金项目:辽宁省教育厅基础研发项目(LJKMZ20220683)资助

作者	单位
刘春喜	辽宁工程技术大学电气与控制工程学院葫芦岛125105
田迎澳	辽宁工程技术大学电气与控制工程学院葫芦岛125105
王涛	辽宁工程技术大学电气与控制工程学院葫芦岛125105

Author	Institution
Liu Chunxi	Faculty of Electrical and Control Engineering, Liaoning Technical University, Huludao 125105,China
Tian Ying′ao	Faculty of Electrical and Control Engineering, Liaoning Technical University, Huludao 125105,China
Wang Tao	Faculty of Electrical and Control Engineering, Liaoning Technical University, Huludao 125105,China

摘要点击次数: 464

全文下载次数: 479

中文摘要:

针对混合三电平双有源桥变换器电流应力大以及动态响应差的问题，对扩展移相调制进行改进，提出一种基于超螺旋滑模自抗扰控制器的最小电流应力控制策略。首先，通过重新定义内、外移相比改进扩展移相调制，以实现移相比与传输功率正相关，并降低移相比间的耦合度；其次，分析改进扩展移相调制在不同工作模式下的传输功率和电流应力的数学模型，并采用KKT条件法求解考虑软开关条件的最小电流应力移相比组合；然后，为简化计算，建立变换器的降阶模型，将超螺旋滑模控制算法与自抗扰技术相结合，以改善变换器的动态性能；最后，通过搭建实验样机进行验证，结果表明，超螺旋滑模自抗扰控制与传统自抗扰控制相比，负载电阻突减时所需的调节时间缩短了72.4%，电压波动减小了51.7%；输入电压突变时所需调节时间缩短了73.7%，电压波动减小了60%。同时有效减小了电流应力并实现了软开关，与单移相调制相比，低功率下效率提高了15%，高功率下效率提高了9%。

英文摘要:

To address the issues of high current stress and poor dynamic response in hybrid three-level dual active bridge (DAB) converters, this study proposes an improved extended phase-shift (EPS) modulation scheme and a minimum current stress control strategy based on a super-twisting sliding mode active disturbance rejection controller (STSMC-ADRC). First, the EPS modulation is enhanced by redefining the internal and external phase-shift ratios, ensuring a positive correlation between the phase-shift ratios and transmitted power while reducing coupling between the ratios. Second, mathematical models of transmitted power and current stress under different operating modes are analyzed for the improved EPS modulation. The karush-kuhn-tucker (KKT) conditions are applied to solve for the optimal phase-shift ratio combination that minimizes current stress while satisfying soft-switching constraints. Third, to simplify calculations, a reduced-order model of the converter is established, and the super-twisting sliding mode control algorithm is integrated with active disturbance rejection technology to enhance dynamic performance. Finally, experimental validation is conducted using a prototype. Results demonstrate that compared to traditional ADRC, the proposed STSMC-ADRC reduces the regulation time by 72.4% and voltage fluctuation by 51.7% during sudden load resistance reduction. For input voltage step changes, the regulation time is shortened by 73.7% and voltage fluctuation decreased by 60%. Additionally, the strategy effectively reduces current stress and achieves soft switching. Compared to single phase-shift modulation, efficiency improves by 15% at low power and 9% at high power.

查看全文查看/发表评论下载PDF阅读器