A decentralized control for cascaded PV inverter system in grid-connected mode
发布时间：2021-07-29
点击次数：
DOI码：10.1109/cac.2017.8244011
发表刊物：2017 Chinese Automation Congress (CAC)
关键字：grid-connected mode；cascaded PV inverter；decentralized control；MPPT；frequency synchronization
摘要：This paper presents a decentralized control for grid-connected cascaded PV inverter system. The system is composed of a number of PV units in series and then connected to utility grid. The topology of this type is meaningful for low voltage (LV) devices to integrate into medium voltage (MV) or high voltage (HV) grid. The proposed decentralized control ensures independent control of each PV unit without communication, and PVs in the cascaded system operate as current controlled voltage sources (CCVS), achieving maximum power point tracking (MPPT) of each PV unit and synchronizing the frequency with the utility grid all the time, regardless of the random change of PV output current. System stability and dynamic performance are analyzed via small signal modeling. Finally the effectiveness of the proposed control is validated by simulation results.
合写作者：Mei, Su;, Wenbin, Yuan, Hua, Han, Hui, Wang
第一作者：Chao, Luo
论文类型：会议论文
通讯作者：Yao, Sun
论文编号：17469139
学科门类：工学
一级学科：电气工程
文献类型：C
页面范围：6851-6856
ISSN号：2688-092X
是否译文：否
发表时间：2017-10-01
收录刊物：SCI、EI
附件：
A_decentralized_control_for_cascaded_PV_inverter_system_in_grid-connected_mode.pdf