电测与仪表2018，Vol.55Issue(3)：48-54,7.
基于改进型双闭环控制的并网逆变器惯性模拟方法及其物理机制研究
An inertia simulation method based on improved double-loop control for grid-connected inverters
摘要
Abstract
A large amount of distributed generation is connected to the grid,thus reducing the rotational inertia of the power system.Based on the static synchronous generator model,this paper introduces an inertia controller on the outer voltage control loop to enhance the grid inertia.The developed inertia controller can generate the inertial current superposed in the conventional current reference.The inertial current can be adjusted arbitrarily,consequently realizing the equivalent simulation of inverter inertia on the basis of the conventional double-loop control.In addition,the physical mechanism of the inertia simulation method for the grid-connected inverters is investigated from the point of circuit model,meanwhile,its physical essence is revealed.The experimental results show that the presented method can adjust the inertia of grid-connected inverters flexibly and can enhance the stable operation of system.关键词
转动惯量/双闭环/惯性电流/物理本质Key words
rotational inertia/double-loop control/inertial current/physical mechanism分类
信息技术与安全科学引用本文复制引用
王东杰,李阳,熊连松,林健..基于改进型双闭环控制的并网逆变器惯性模拟方法及其物理机制研究[J].电测与仪表,2018,55(3):48-54,7.基金项目
江苏省配电网智能技术与装备协同创新中心开放基金项目(XTCX201711) （XTCX201711）
