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1.合肥工业大学电气与自动化工程学院,安徽省合肥市 230009
2.光伏系统教育部工程研究中心(合肥工业大学),安徽省合肥市230009
杨向真(1982—),女,博士,副教授,硕士生导师,主要研究方向:分布式发电及微电网系统技术。E-mail:greenleaf_yxz@163.com
孔令浩(1995—),男,硕士研究生,主要研究方向:微电网中电力电子变压器技术。E-mail:1837350495@qq.com
杜燕(1978—),女,通信作者,博士,副教授,硕士生导师,主要研究方向:分布式发电及新能源利用。E-mail:dydf@sina.com
收稿日期:2020-12-15,
修回日期:2021-04-14,
网络出版日期:2020-07-06,
纸质出版日期:2021-09-10
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杨向真,孔令浩,杜燕等.基于动态矩阵控制的DAB变换器电流应力与回流功率优化方法[J].电力系统自动化,2021,45(17):153-160.
YANG Xiangzhen,KONG Linghao,DU Yan,et al.Optimization Method of Current Stress and Backflow Power of DAB Converter Based on Dynamic Matrix Control[J].Automation of Electric Power Systems,2021,45(17):153-160.
杨向真,孔令浩,杜燕等.基于动态矩阵控制的DAB变换器电流应力与回流功率优化方法[J].电力系统自动化,2021,45(17):153-160. DOI: 10.7500/AEPS20201215009.
YANG Xiangzhen,KONG Linghao,DU Yan,et al.Optimization Method of Current Stress and Backflow Power of DAB Converter Based on Dynamic Matrix Control[J].Automation of Electric Power Systems,2021,45(17):153-160. DOI: 10.7500/AEPS20201215009.
针对双重移相控制的双有源桥(DAB)变换器存在的电流应力和回流功率问题,建立了电流应力和回流功率的权重优化函数,其设计原则为保证电流应力抑制效果并同时减小回流功率。分析了权重因子的优化选取过程,从而获取2种工作模式下DAB变换器的内、外移相比。为了改善DAB变换器输出电压的动态响应性能,提高负载适应性和鲁棒性,提出了基于动态矩阵控制的电压预测控制方法。最后,结合StarSim实时仿真机和DSP芯片搭建了DAB变换器的半实物实验平台,实验结果验证了所提控制策略在提高DAB变换器电压动态响应性能、抑制电流应力和减小回流功率方面的有效性和正确性。
Aiming at the current stress and the backflow power problems of dual active bridge (DAB) converters with dual-phase-shift control
this paper establishes the weight optimization function of the current stress and the backflow power. Its design principle is to ensure the current stress suppression effect and reduce the backflow power at the same time. The optimization selection process of the weighting factor is analyzed to obtain the inner and outer phase-shift ratio of the DAB converter in two working modes. In order to improve the dynamic response performance of the output voltage of the DAB converter and improve the load adaptability and robustness
this paper proposes a voltage predictive control method based on dynamic matrix control (DMC). Finally
by combining the StarSim real-time simulator and DSP chip
a half-physical experimental platform for the DAB converter is built. The experimental results verify the effectiveness and correctness of the proposed control strategy in improving the dynamic response performance of the DAB converter voltage
suppressing the current stress and reducing the backflow power.
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