分布式能源2025，Vol.10Issue(3)：23-30,41,9.DOI:10.16513/j.2096-2185.DE.24090676
适用于兆瓦级多模块变流器的新型有源阻尼控制设计方法
A Novel Control Design Method of Active Damping for Multi-Module Converter at Megawatt Level
摘要
Abstract
The LCL filter is usually constructed by centrally deploying filter capacitors on the AC side of the megawatt multi-module converter.The stability of the system is affected by the communication delay between the control device and the power module and the number of power modules,and the traditional active damping design method is difficult to ensure stable operation.Therefore,a new design method of active damping was proposed.In this method,the equivalent active damping control model of the converter considering the communication transmission delay was established in the discrete domain,and the equivalent transfer function root locus method was introduced.The active damping feedback coefficient and quasi-resonant controller parameters were designed under different communication delays and power modules,and their influence on the selection and design of converter parameters was analyzed.The effectiveness of the proposed method was verified by simulation and experiment.The active damping design can quickly obtain the control parameters required for the stable operation of the high-power converter,thereby improving the efficiency of equipment development.关键词
多模块变流器/滤波电容集中布置/通讯传输延时/等效传递函数根轨迹/离散域/有源阻尼Key words
multi-module converter/centralized arrangement of filtering capacitors/communication transmission delay/root locus of equivalent transfer function/discrete domain/active damping分类
信息技术与安全科学引用本文复制引用
钱为,刘洪德,吴扣林,袁庆伟,谢晔源..适用于兆瓦级多模块变流器的新型有源阻尼控制设计方法[J].分布式能源,2025,10(3):23-30,41,9.基金项目
国家重点研发计划项目(2023YFB2407403)This work is supported by National Key Research and Development program of China(2023YFB2407403) （2023YFB2407403）
