电力系统自动化2017，Vol.41Issue(12)：20-25,6.DOI:10.7500/AEPS20160726007
考虑逆变型分布式电源时滞的孤岛微网小信号稳定分析
Small Signal Stability Analysis of Islanded Microgrid Considering Time-delay Effect of Inverter Interfaced Distributed Generator
摘要
Abstract
An islanded microgrid is apt to have stability problems because of its low power capacity and weak network configuration.This paper mainly focuses on the droop control microgrid system consisting of an inverter interfaced distributed generator (IIDG).Using the participation factor and sensitivity analysis, simplified small signal models of the IIDG are derived.By referring to the diesel engine equivalent model, the small signal model of microgrid is created.Then by adopting the eigenvalue analysis to analyse the time-delay effect of IIDG, the small signal stability of microgrid during the variation of IIDG's power output, the droop coefficient and the time constant are studied.The results can be used to guide the IIDG operation strategy of different combinations and orders in the microgrid, and time-domain simulation is used to prove the validity of the results.关键词
孤岛微网/微网(微电网)/下垂控制/小信号模型/特征根分析/时滞Key words
islanded microgrid/microgrid/droop control/small signal model/eigenvalue analysis/time-delay引用本文复制引用
周念成,孟潇潇,王强钢..考虑逆变型分布式电源时滞的孤岛微网小信号稳定分析[J].电力系统自动化,2017,41(12):20-25,6.基金项目
国家自然科学基金资助项目(51577018).This work is supported by National Natural Science Foundation of China (No.51577018). （51577018）
