DC Micro-grid Voltage Control Strategy Based on Discrete Consensus Algorithm

被引：0
|
作者：
Jia, Ke [1 ]
Chen, Jinfeng [1 ]
Yang, Bin [1 ]
机构：
[1] North China Elect Power Univ, State Key Lab Alternat Elect Power Syst Renewable, Beijing 102206, Peoples R China
来源：
PROCEEDINGS OF 2019 INTERNATIONAL FORUM ON SMART GRID PROTECTION AND CONTROL (PURPLE MOUNTAIN FORUM), VOL I | 2020年 / 584卷
关键词：
DC Micro-grid; Discrete consensus algorithm; Voltage control; Adjacent communication;
D O I：
10.1007/978-981-13-9779-0_49
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Due to the uneven distribution of virtual resistance and line impedance in the DC micro-grid, the traditional droop control has the contradiction between current sharing and voltage regulation. In this paper, the droop control based on the discrete consensus algorithm is adopted. Each power generation unit adopts adjacent communication, and the reference value of the DC bus voltage is corrected according to the mean value after the iterative of the system voltage, thereby compensating for the voltage drop caused by the droop control. The photovoltaic (PV) cell adopts the maximum power tracking (MPPT) control. The battery adopts the constant voltage control with current threshold, which can keep the DC bus voltage stable, and the outlet current is prevented from being too large to shorten the service life of the battery. Stable operation of the DC micro-grid is realized. Finally, the PV/battery DC micro-grid model is built in Simulink. When the environmental conditions and load change, the micro-grid can ensure the DC bus voltage constant and the active power balance, which verifies the effectiveness of the proposed control strategy.
引用
收藏
页码：601 / 611
页数：11
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