Asymmetrical Grid Fault Ride-Through Strategy of Three-Phase Grid-Connected Inverter Considering Network Impedance Impact in Low-Voltage Grid

被引：105
作者：
Guo, Xiaoqiang [1 ]
Zhang, Xue [1 ]
Wang, Baocheng [1 ]
Wu, Weiyang [1 ]
Guerrero, Josep M. [2 ]
机构：
[1] Yanshan Univ, Dept Elect Engn, Key Lab Power Elect Energy Conservat & Motor Dr H, Qinhuangdao 066004, Peoples R China
[2] Aalborg Univ, Dept Energy Technol, DK-9220 Aalborg, Denmark
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 2014年 / 29卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Fault ride through; flexible voltage support; grid faults; grid-connected inverter; DISTRIBUTED GENERATION INVERTERS; CONTROL SCHEME; POWER-CONTROL; COMPENSATOR; OPERATION; PARALLEL; SAGS;
D O I：
10.1109/TPEL.2013.2278030
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：
This letter presents a new control strategy of three-phase grid-connected inverter for the positive sequence voltage recovery and negative sequence voltage reduction under asymmetrical grid faults. Unlike the conventional control strategy based on an assumption that the network impedance is mainly inductive, the proposed control strategy is more flexible and effective by considering the network impedance impact, which is of great importance for the high penetration of grid-connected renewable energy systems into low-voltage grids. The experimental tests are carried out to validate the effectiveness of the proposed solution for the flexible voltage support in a low-voltage grid, where the network impedance is mainly resistive.
引用
收藏
页码：1064 / 1068
页数：5
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