混合储能双向DC/DC变换器线性自抗扰控制研究  

Research on Linear Active Disturbance Rejection Control of Hybrid Energy Storage Bidirectional DC/DC Converter

作　　者：郑昊[1] 杜贵平[1] 雷雁雄 唐哲人 ZHENG Hao;DU Gui-ping;LEI Yan-xiong;TANG Zhe-ren(South China University of Technology,Guangzhou 510641,China)

机构地区：[1]华南理工大学,电力学院,广东广州510641

出　　处：《电力电子技术》2022年第9期80-83,共4页Power Electronics

基　　金：广东省自然科学基金(2017B030312001)。

摘　　要：双向DC/DC变换器的暂稳态性能是混合储能系统调节母线电压与维持功率平衡的关键。为解决传统比例积分(PI)控制中动态响应慢与参数整定问题,将线性自抗扰控制(LADRC)用于直流混合储能系统双向Buck-Boost变换器的电流内环。该方法可以处理大范围瞬态响应与不确定性,将双向变换器的响应速度提高20%以上,减小了母线电压波动,增强了系统的抗扰性。通过实验验证了该方法的有效性。The transient and steady state performance of bidirectional DC/DC converter is the key to regulate bus voltage and maintain power balance of hybrid energy storage system.To solve the problems of slow dynamic response and parameters setting in traditional proportional integral(PI) control,linear active disturbance rejection control(LADRC)is applied to the current inner loop of bidirectional Buck-Boost converter in DC hybrid energy storage system.The method can deal with a large range of transient responses and uncertainties,improve the response speed of the bidirectional converter by more than 20%,reduce the bus voltage fluctuation and enhance the immunity of the system.The effectiveness of the method is verified by experiments.

关 键 词：变换器 混合储能 线性自抗扰控制 

分 类 号：TM46[电气工程—电器]