电工技术学报  2022, Vol. 37 Issue (10): 2559-2571    DOI: 10.19595/j.cnki.1000-6753.tces.210576
电力电子 |
结合电流应力优化与虚拟电压补偿的双有源桥DC-DC变换器三重移相优化控制
蔡逢煌1, 石安邦1, 江加辉2, 王武1, 林琼斌1
1.福州大学电气工程与自动化学院 福州 350108;
2.青岛大学电气工程学院 青岛 266071
Triple-Phase-Shift Optimal Control of Dual-Active-Brige DC-DC Converter with Current Stress Optimization and Virtual Voltage Compensation
Cai Fenghuang1, Shi Anbang1, Jiang Jiahui2, Wang Wu1, Lin Qiongbin1
1. School of Electrical Engineering and Automation Fuzhou University Fuzhou 350108 China;
2. School of Electrical Engineering Qingdao University Qingdao 266071 China
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摘要 为了同时减小双有源桥(DAB)DC-DC变换器的电流应力和提高动态响应速度,该文在建立三重移相下六种模式的传输功率、电流应力等工作特性模型的基础上,提出一种基于三重移相的结合电流应力优化与虚拟电压补偿的控制方法。该方法由电流应力最优移相角模型和虚拟电压补偿方法构成,通过KKT条件获取电流应力最优的移相角模型,结合虚拟电压补偿方案估算传输功率值以提高负载突变及输入电压扰动时的动态响应速度。该方法在保证电流应力优化的同时,能够实现快速的动态响应,并且参数易于调节,可移植性好。最后,搭建了一台小功率样机进行三种方案的对比实验,验证了该文控制方法的正确性及优越性。
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蔡逢煌
石安邦
江加辉
王武
林琼斌
关键词 双有源桥DC-DC变换器三重移相电流应力动态性能虚拟电压补偿    
Abstract:In order to simultaneously reduce the current stress and improve the dynamic characteristics of the dual-active-bridge (DAB) DC-DC converter, this paper establishes the operating characteristic model of transmitted power and current stress for six modes under triple phase shifting. Accordingly, a control scheme based on triple phase shifting combining current stress optimization and virtual voltage compensation is proposed. The scheme consists of the current stress optimal phase shift angle model and the virtual voltage compensation method. The KKT condition is used to obtain the current stress optimal phase shift angle model, and the virtual voltage compensation method is used to estimate the transmission power value to improve the dynamic characteristics when the load is suddenly changed and the input voltage is disturbed. The scheme can achieve fast dynamic response while ensuring current stress optimization, and the parameters are easily adjustable and portable. Finally, a small power prototype was built for the comparison experiment to verify the correctness and superiority of the proposed scheme.
Key wordsDual-active-brige DC-DC converter    triple phase shift    current stress    dynamic performance    virtual voltage compensation   
收稿日期: 2021-04-23     
PACS: TM46  
基金资助:山东省自然科学基金(ZR2019QEE004)和福州市科技计划(2019-G-44)资助项目
通讯作者: 江加辉 男,1989年生,讲师,硕士生导师,研究方向为电力电子变换技术和新能源发电技术。E-mail: qdujiangjiahui@sina.com   
作者简介: 蔡逢煌 男,1976年生,教授,硕士生导师,研究方向为电力电子变换技术。E-mail: caifenghuang@fzu.edu.cn
引用本文:   
蔡逢煌, 石安邦, 江加辉, 王武, 林琼斌. 结合电流应力优化与虚拟电压补偿的双有源桥DC-DC变换器三重移相优化控制[J]. 电工技术学报, 2022, 37(10): 2559-2571. Cai Fenghuang, Shi Anbang, Jiang Jiahui, Wang Wu, Lin Qiongbin. Triple-Phase-Shift Optimal Control of Dual-Active-Brige DC-DC Converter with Current Stress Optimization and Virtual Voltage Compensation. Transactions of China Electrotechnical Society, 2022, 37(10): 2559-2571.
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