Pulse Width Amplitude Modulation Based Single-Phase Quasi-Z-Source Photovoltaic Inverter with Energy Storage Battery

被引：0
|
作者：
Liu, Yushan [1 ]
Ge, Baoming [2 ]
Wu, Yichang [3 ]
Kakosimos, Panagiotis [1 ]
Abu-Rub, Haitham [1 ]
机构：
[1] Texas A&M Univ Qatar, Elect & Comp Engn Program, Doha 23874, Qatar
[2] Texas A&M Univ, Dept Elect & Comp Engn, College Stn, TX 77843 USA
[3] China Unicom Fuxin Branch, Fuxin 123000, Peoples R China
来源：
2017 THIRTY SECOND ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC) | 2017年
关键词：
Z-source inverter; single-phase system; photovoltaic system; grid-connected operation; islanding operation;
D O I：
暂无
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：
The pulse width amplitude modulation (PWAM) was earlier proposed for the single-phase quasi-Z source inverter (qZSI) based photovoltaic (PV) power system to reduce qZS impedance values while improving efficiency. The method resulted in highly fluctuated qZS inductor currents and capacitor voltages as well, which makes it difficult to integrate energy storage battery as a conventional qZSI. This paper proposes an improved topology with energy storage elements for the PWAM-based single-phase qZS PV inverter, maintaining constant battery current. Also, control strategy is disclosed for grid-connected and islanding operation. Simulation and experimental results verify the proposed approach for dual-mode operation of the PWAM-based single-phase qZS PV power system.
引用
收藏
页码：1351 / 1356
页数：6
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