基于分层控制的微网无缝切换研究

高廷峰; 汪海宁; 施永

高廷峰,汪海宁,施永.基于分层控制的微网无缝切换研究[J].电测与仪表,2017,54(3):.
Gao Tingfeng,Wang Haining,Shi Yong.Research of Hierarchical Control in Seamless Transition of Microgrid[J].Electrical Measurement & Instrumentation,2017,54(3):.

基于分层控制的微网无缝切换研究

Research of Hierarchical Control in Seamless Transition of Microgrid

DOI：

中文关键词: 微网并网运行孤岛运行无缝切换

英文关键词:Micro-grid,grid-connected operation,islanded operation,seamless transition

基金项目:广东省引进创新科研团队计划(2011N015)

作者中文名	作者英文名	单位
高廷峰	Gao Tingfeng	合肥工业大学
汪海宁	Wang Haining	合肥工业大学
施永	Shi Yong	合肥工业大学

摘要点击次数: 1905

中文摘要:

由分布式发电(DG)单元结合本地负载、储能设备等组成的微电网整合了各分布式发电单元的优势,减弱了对大电网的影响。微电网能够在并网模式与孤岛模式下运行：并网时,系统处于电流源型工作式模输出给定功率；孤岛运行时,DG单元需维持微电网电压和频率稳定。本文针对微网平滑切换控制方法进行了研究,提出一种适用于分层控制结构的新型控制器,通过控制前后两种控制器在切换瞬间的输出实现平缓变换,可削弱切换暂态过程影响、确保模式切换的平滑性,使系统稳定性得以提高。最后,建立微网系统实验平台对本文所提策略的有效性和可靠性进行实验验证。

英文摘要:

Micro-grid, combined with distributed generation(DG), which reduce the impact on the grid, combines the advantages of each proposed distributed generation units. It can operate in islanding mode and grid-connected mode: In grid-connected mode, it works in current-mode. While in islanding mode,it needs to maintain voltage and frequency stable.This paper based on the stratified contral structure, propose a new controller, not only it can suitable for the system’s method smooth transformation, but also can weak the transient process effects, so the system’s stability can be improved . Finally, experimental the new controller’s validity and reliability by establishing the experimental platform.

查看全文查看/发表评论下载PDF阅读器

关闭