A Transformerless Boost Inverter for Stand-alone Photovoltaic Generation Systems

被引：0
|
作者：
Yu, Zhixiang [1 ]
Hu, Xuefeng [1 ]
Zhang, Meng [1 ]
Chen, Lezhu [1 ]
Jiang, Shunde [1 ]
机构：
[1] Anhui Univ Technol, Coll Elect Engn, Maanshan, Peoples R China
来源：
2019 IEEE 10TH INTERNATIONAL SYMPOSIUM ON POWER ELECTRONICS FOR DISTRIBUTED GENERATION SYSTEMS (PEDG 2019) | 2019年
关键词：
boost inverter; transformerless; DCM; photovoltaic generation systems; monopole SPWM; nonpolarized capacitor; STEP-UP INVERTER;
D O I：
10.1109/pedg.2019.8807688
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：
a novel transformerless boost inverter for standa-lone photovoltaic generation systems is proposed in this paper. The proposed inverter combines the boost converter with the traditional bridge inverter. The switch Si can not only realize the boost function but also participate in inverting process. The inverter has a higher voltage gain and good characteristics when the inductor Li is operated in discontinuous mode (DCM) and the nonpolarized capacitor can be chosen as bus capacitor, which makes the volume smaller and the service life of the inverter is increased. The inverter consists of five switches in which only two switches are operated at high frequency state and a monopole SPWM strategy is used. Therefore, the modulation strategy of switches is very simple and the switching loss is reduced. The principle of inverter is described in detail and the correctness of the theoretical analysis is verified by simulation and experiment.
引用
收藏
页码：570 / 575
页数：6
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