电力系统及其自动化学报2024，Vol.36Issue(1)：71-79,9.DOI:10.19635/j.cnki.csu-epsa.001234
虚拟负电感控制的高频段参数整定方法
High-frequency Parameter Setting Method with Virtual Negative Inductance Control
摘要
Abstract
The coupling of multiple converters between hardware and algorithm will directly affect the stability of grid voltage with the improvement of power electronics in DC microgrid.To analyze the mechanism behind voltage oscilla-tions caused by constant power load,a complex frequency domain model of the DC microgrid was established,and the constraint conditions of voltage stability were derived.On this basis,a virtual negative inductance compensation link was constructed to offset the influence of LC filter inductance on voltage stability.This approach aimed to meet the con-straint conditions and suppress voltage oscillations within the system.The high-frequency compensation method and en-gineering design method for virtual negative inductance were studied in detail,and a parameter setting method was also given.Finally,the stability of the DC microgrid was analyzed using the Nyquist criterion,and the effectiveness of the proposed algorithm was verified by experimental results.关键词
虚拟负电感/恒功率负载/负阻抗特性/电压振荡Key words
virtual negative inductance/constant power load/negative impedance characteristic/voltage oscillation分类
信息技术与安全科学引用本文复制引用
曹敏,黄锦敬..虚拟负电感控制的高频段参数整定方法[J].电力系统及其自动化学报,2024,36(1):71-79,9.基金项目
广东省普通高校特色创新项目(2021KTSCX170) （2021KTSCX170）
