摘要
为解决模块化多电平储能系统(MMC-BESS)在背景谐波和死区效应等扰动下电能质量恶化的问题,提出一种基于桥臂电流控制的MMC-BESS谐波抑制策略。针对中压大容量应用场景的MMC-BESS谐波扰动问题,首先,分析交流背景谐波和死区效应对MMC-BESS的影响,建立交流背景谐波和死区时间对模块化多电平储能系统交、直流侧影响的数学模型;其次,建立MMC-BESS交流电流、直流环流和交流环流的解耦模型;在此基础上,提出基于桥臂电流控制的MMC-BESS谐波抑制策略,并给出详细的控制器参数设计过程和性能分析;最后,通过仿真和实验验证所提储能系统谐波抑制策略的有效性和可行性。
In order to solve the problem of power quality deterioration of modular multilevel converter-based battery energy storage system(MMC-BESS)under the disturbance of background harmonic and dead time effect,a harmonic suppression strategy of MMC-BESS based on arm current control is proposed in this paper.To investigate the harmonic disturbance of the MMC-BESS in the medium voltage application scenario,firstly,the influence of AC background harmonic and dead time effect on the MMC-BESS is analyzed,and the mathematical model is established.Secondly,the decoupling models of AC current,DC arm circulating current and AC circulating current of the MMC-BESS are also established.On this basis,the harmonic suppression strategy of MMC-BESS based on arm current control is proposed,and the detailed controller parameter design process and performance analysis are given.Finally,the effectiveness and correction of the proposed harmonic suppression strategy are verified by simulation and experiment.
作者
余斌
李辉
赖锦木
宋兴荣
周挺
吴晋波
肖豪龙
YU Bin;LI Hui;LAI Jinmu;SONG Xingrong;ZHOU Ting;WU Jinbo;XIAO Haolong(Electric Power Research Institute,State Grid Hunan Electric Power Co.,Ltd.,Changsha 410007,China;School of Electrical and Information Engineering,Zhengzhou University,Zhengzhou 450001,China;State Grid Hunan Electric Power Co.,Ltd.,Changsha 410004,China)
出处
《电力科学与技术学报》
CAS
CSCD
北大核心
2023年第4期82-92,共11页
Journal of Electric Power Science And Technology
基金
国网湖南省电力有限公司科技项目(5216A521001K)
强电磁工程与新技术国家重点实验室开放基金(AEET2022KF003)。
