Control and Simulation of Grid-Connected Micro-Grid

被引：0

作者：

Liu, He-Jin ^{[1
]}

Li, Ke-Jun ^{[1
]}

Gao, Hong-Xia ^{[1
]}

Sun, Ying ^{[1
]}

Sun, Kai-qi ^{[1
]}

Lee, Wei-Jen ^{[2
]}

机构：

[1] Shandong Univ, Sch Elect Engn, Jinan 250061, Peoples R China

[2] Univ Texas Arlington, Energy Syst Res Ctr, Arlington, TX 76019 USA

来源：

2012 IEEE POWER AND ENERGY SOCIETY GENERAL MEETING | 2012年

基金：

中国国家自然科学基金;

关键词：

micro-grid; power flow; the best chance to connect; grid-connected; P/Q control; AUTONOMOUS OPERATION;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Grid-connected control method and simulations of the micro-grid are presented in the paper. The typical configuration of the micro-grid is presented. In order to ameliorate the effect of power quality during the grid- connected process, the power flow in the micro-grid is analyzed based on the characteristic of frequency and active power, and the time when the difference value of the voltage between the main grid and the micro-grid become zero is chosen as the best chance to connect. In the grid-connected mode, P/Q control is adopted. By the simulation tool Matlab/Simulink, different grid-connected processes are simulated and compared. The frequency and active power fluctuations are analyzed. The results indicate that the control method is effective in dominating the micro-grid during the grid-connected mode, and the choice of the best chance to connect has a great effect on the power quality in the micro-grid.

引用

页数：6

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