大功率锂电池储能系统变增益自抗扰斩波补偿控制策略  

Variable-gain ADRC chopping compensation control strategy for high-power lithium battery energy storage system

作　　者：韩金洋 李卫超[1] 周亮[1] 邓晨 刘伊扬 HAN Jinyang;LI Weichao;ZHOU Liang;DENG Chen;LIU Yiyang(Naval Univ.of Engineering,Wuhan 430033,China)

机构地区：[1]海军工程大学,武汉430033

出　　处：《海军工程大学学报》2025年第2期26-33,77,共9页Journal of Naval University of Engineering

基　　金：国家自然科学基金资助项目(52277207);全国重点实验室基金资助项目(61422172220503)。

摘　　要：在电磁暂态工况下,直线电机负载的功率攀升和锂电池组的高倍率放电会导致锂电池储能系统输出电压跌落较大,直接影响电磁发射系统的稳定运行。此外,常值增益扩张状态观测器(extended state observer,ESO)因初始状态误差引发的峰化现象,将恶化控制器性能。针对上述问题,提出了一种基于共轭极点法配置非线性ESO(nonlinear ESO,NESO)参数的变增益自抗扰(variable gain ADRC,VG-ADRC)斩波补偿控制策略。首先,通过设计变增益控制律以及NESO参数配置,减小了总扰动观测值的峰值,提高了控制器补偿能力,降低了锂电池储能系统输出电压跌落幅值;然后,进行了频率特性分析,验证了所提参数配置方法可以降低观测器复杂度并提升扰动观测能力;最后,通过脉冲大功率放电实验平台进行了放电实验,验证了所提控制策略和参数配置方法的有效性。In the electromagnetic transient process,the power rise of linear motor load and the high C-rate discharge of lithium battery pack lead to a large output voltage drop of lithium battery energy storage system,which will directly affect the stable operation of electromagnetic launch system.In addition,the constant gain extended state observer(ESO) will deteriorate the controller performance due to the peaking phenomenon caused by the initial state error.In order to solve the above problems,a variable gain active disturbance rejection(VG-ADRC) chopping compensation control strategy was proposed based on conjugate pole method to configure nonlinear ESO(NESO) parameters.First of all,by designing variable gain control law and NESO parameter configuration,the peaking value of total disturbance observation was decreased,the compensation ability of the controller was improved,and the output voltage drop amplitude of LBESS was reduced.And then,through the analysis of frequency characteristics,it was demonstrated that the proposed parameter configuration method can reduce the complexity of the observer and improve the disturbance observation ability.Finally,the discharge experiment was carried out on the pulsed high-power discharge experimental platform,which verified the effectiveness of the proposed control strategy and parameter configuration method.

关 键 词：锂电池储能系统 电压补偿 自抗扰控制 峰值衰减 

分 类 号：TM46[电气工程—电器]