Research on Low Voltage Ride through of the Grid-Connected PV System

被引：0
|
作者：
Li, Kaiting [1 ]
Qian, Junjie [1 ]
Wu, Huaren [1 ]
Li, Tianran [1 ]
Yang, Jianfei [1 ]
机构：
[1] Nanjing Normal Univ, Sch Elect & Automat Engn, Nanjing 210042, Jiangsu, Peoples R China
来源：
PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCES IN ENERGY, ENVIRONMENT AND CHEMICAL ENGINEERING | 2015年 / 23卷
关键词：
PV power system; Maximum Power Point Tracking (MPPT); Low Voltage Ride Through(LVRT); DC voltage control; duty cycle;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
With the increasing capacity of PV systems in the grid, the grid-connected PV systems will have negative impacts on the grid in the case of a disturbance or a fault. In this study, a strategy of 'DC voltage control' is adopted. During the period of low voltage ride through (LVRT), the duty cycle of the boost circuit is adjusted to reduce the output power of the PV battery so that the DC side voltage will be limited. Also reactive power is provided according to the depth of grid voltage sags to support voltage recovery of the grid. Consequently LVRT is realized successfully. Finally, the control strategy is verified in MATLAB/SIMULINK.
引用
收藏
页码：63 / 68
页数：6
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