混合储能系统分散自适应强扭曲虚拟阻抗控制  

Decentralized adaptive super-twisting virtual impedance control for hybrid energy storage system

作　　者：单锁兰 谷志锋 李宏城 高升 刘雅芳 刘靖波 SHAN Suolan;GU Zhifeng;LI Hongcheng;GAO Sheng;LIU Yafang;LIU Jingbo(School of Electrical and Electrics Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,China)

机构地区：[1]石家庄铁道大学电气与电子工程学院,河北石家庄050043

出　　处：《中国测试》2021年第1期127-132,共6页China Measurement & Test

基　　金：国家自然科学基金项目(51407196);河北省自然科学基金项目(E2017506007);河北省重点研发计划项目(20354501D);石家庄市科技计划项目(201060104A);研究生创新基金项目(YC2020065);全国大学生创新创业项目(S202010107044)。

摘　　要：为提高负载冲击条件下混合储能系统(hybrid energy storage system, HESS)的稳定能力,考虑模型不确定及上界未知等现实约束,基于自适应高阶滑模控制理论,提出一种分散自适应强扭曲虚拟阻抗控制(decentralized adaptive super-twisting virtual impedance control, DA-ST)方法,并进行稳定性分析及理论仿真验证。仿真结果表明:在物理参数摄动和连续负载冲击条件下,与传统虚拟阻抗比例控制方式相对比,采用新提的控制策略,储能变换器输出电压纹波降低30%,输出电压稳定时间缩短0.3 s,输出电压超调降低,输出电流稳定时间缩短,超级电容动态功率补偿速度加快。DA-ST对于提高HESS抗负载冲击能力具有明显效果,可有效提高HESS稳定运行能力。In order to improve the stability of hybrid energy storage system(HESS) under load impact,decentralized adaptive super-twisting virtual impedance control(DA-ST) is proposed based on adaptive highorder sliding mode control theory. The stability analysis and theoretical simulation verification are carried out.Simulation results show that under the condition of physical parameter perturbation and continuous load impulse, compared with the traditional virtual impedance proportional control method, the output voltage ripple of the energy storage converter is reduced by 30%, the output voltage stability time is shortened by 0.3 s, the output voltage overshoot is reduced, the output current stability time is shortened, and the dynamic power compensation speed of super capacitor is accelerated. DA-ST has obvious effect on improving the anti-load impact ability of HESS, and can effectively improve the stable operation ability of HESS.

关 键 词：混合储能系统 强扭曲控制 分散自适应控制 双向DC/DC变换器 

分 类 号：TM464[电气工程—电器]