Grid interconnected Z-Source PV system

被引：46
|
作者：
Badin, Richard [1 ]
Huang, Yi [1 ]
Peng, Fang Z. [1 ]
Kim, Heung-Geun [1 ]
机构：
[1] Michigan State Univ, Dept Elect & Comp Engn, E Lansing, MI 48824 USA
来源：
2007 IEEE POWER ELECTRONICS SPECIALISTS CONFERENCE, VOLS 1-6 | 2007年
关键词：
Z-Source inverter; maximum boost; grid interconnection; maximum power point tracking (MPPT); photovoltaic (PV); power conditioning system; pulse width modulation (PWM);
D O I：
10.1109/PESC.2007.4342373
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The paper proposes the use of the Z-Source inverter for photovoltaic (PV) grid interconnection. Unlike the traditional inverter, the Z-Source inverter has two independent control variables: shoot-through duty ratio and modulation index. This paper demonstrates that the Z-Source inverter can boost dc voltage when needed, perform maximum power tracking, and interface with the grid. A Z-source inverter system is considered for a 230-400 V dc PV array's interconnection with a three-phase 208 V rms grid. Simulation results prove that the Z-source inverter can perform maximum power tracking and produce the needed ac voltage to the grid for the entire PV voltage range of 230-400 V, which is not possible for the traditional inverter without dc-dc boost converter.
引用
收藏
页码：2328 / 2333
页数：6
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