电测与仪表2017，Vol.54Issue(5)：62-67,74,7.
微电网基于下垂控制的改进孤岛检测技术研究
The research of improved islanding detection method in micro-grid based on droop control
摘要
Abstract
Islanding detection technology is essential for micro-grid which is required that it must work at grid-connected and islanding modes.With regards to this,an islanding detection method,which adds positive power disturbances on the reference active power to make inverter frequency deviate out of normal range when grid is going wrong,is presented.On this basis,the frequency positive feedback is added to the coefficient by judging continuous times of frequency deviation to give corresponding disturbance to improve the selection of active power disturbance,which can accelerate the Speed of islanding detection and reduce the impact on power quality when grid is in the normal state.Meanwhile,a program which islanding detection algorithm is applied in micro-grid by analyzing its structure characteristics.At last,simulation results show the effectiveness of islanding detection algorithm in micro-grid.关键词
下垂控制/功率扰动/孤岛检测/频率正反馈Key words
droop control/power disturbance/islanding detection/frequency positive feedback分类
信息技术与安全科学引用本文复制引用
方彬鹏,汪海宁,吴子成..微电网基于下垂控制的改进孤岛检测技术研究[J].电测与仪表,2017,54(5):62-67,74,7.基金项目
广东省引进创新科研团队计划资助项目(2011N015) （2011N015）
