A Novel Non-Isolated Three-Port Bidirectional DC/DC Converter for Photovoltaic Electric Scooter Charging Stations

被引：4

作者：

Wu, Yu-En ^{[1
]}

Lin, Xiu-Yi ^{[1
]}

机构：

[1] Natl Kaohsiung Univ Sci & Technol, Dept Elect Engn, Kaohsiung 824, Taiwan

来源：

ELECTRONICS | 2020年 / 9卷 / 10期

关键词：

three-port bidirectional converter; photovoltaic (PV) electric scooter (ES) charging stations; DC-DC CONVERTER;

D O I：

10.3390/electronics9101741

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper proposes a novel non-isolated three-port bidirectional dc/dc converter for photovoltaic (PV) electric scooter (ES) charging stations. The proposed converter combines an improved boost converter and a bidirectional buck-boost converter. When the PV energy is sufficient, the PV module is stepped up to provide dc load energy to the ES through the improved boost converter in order to charge the ES battery. When the PV energy is insufficient, the storage battery is stepped up to provide energy to the ES load dc bus, and the ES load dc bus charges the battery if the battery energy is low. The proposed converter reduces the number of components and circuit cost by using a switch internal diode. Finally, a 400-W modified boost converter and a 120-W/60-W bidirectional boost-buck converter were implemented to verify the three operating modes of the proposed non-isolated dc/dc converter. The results revealed that the highest efficiency levels achieved under PV module step-up, storage battery step-up, and storage battery step-down operation were 97.5%, 96.6%, and 92%, respectively.

引用

页码：1 / 23

页数：23

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